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@@ -1,229 +1,229 b'' | |||||
1 | #!/usr/bin/env python |
|
1 | #!/usr/bin/env python | |
2 | # encoding: utf-8 |
|
2 | # encoding: utf-8 | |
3 | """ |
|
3 | """ | |
4 | A lightweight component system for IPython. |
|
4 | A lightweight component system for IPython. | |
5 |
|
5 | |||
6 | Authors: |
|
6 | Authors: | |
7 |
|
7 | |||
8 | * Brian Granger |
|
8 | * Brian Granger | |
9 | * Fernando Perez |
|
9 | * Fernando Perez | |
10 | """ |
|
10 | """ | |
11 |
|
11 | |||
12 | #----------------------------------------------------------------------------- |
|
12 | #----------------------------------------------------------------------------- | |
13 | # Copyright (C) 2008-2009 The IPython Development Team |
|
13 | # Copyright (C) 2008-2009 The IPython Development Team | |
14 | # |
|
14 | # | |
15 | # Distributed under the terms of the BSD License. The full license is in |
|
15 | # Distributed under the terms of the BSD License. The full license is in | |
16 | # the file COPYING, distributed as part of this software. |
|
16 | # the file COPYING, distributed as part of this software. | |
17 | #----------------------------------------------------------------------------- |
|
17 | #----------------------------------------------------------------------------- | |
18 |
|
18 | |||
19 | #----------------------------------------------------------------------------- |
|
19 | #----------------------------------------------------------------------------- | |
20 | # Imports |
|
20 | # Imports | |
21 | #----------------------------------------------------------------------------- |
|
21 | #----------------------------------------------------------------------------- | |
22 |
|
22 | |||
23 | from copy import deepcopy |
|
23 | from copy import deepcopy | |
24 | import datetime |
|
24 | import datetime | |
25 | from weakref import WeakValueDictionary |
|
25 | from weakref import WeakValueDictionary | |
26 |
|
26 | |||
27 | from IPython.utils.ipstruct import Struct |
|
27 | from IPython.utils.ipstruct import Struct | |
28 | from IPython.utils.traitlets import ( |
|
28 | from IPython.utils.traitlets import ( | |
29 | HasTraitlets, TraitletError, MetaHasTraitlets, Instance, This |
|
29 | HasTraitlets, TraitletError, MetaHasTraitlets, Instance, This | |
30 | ) |
|
30 | ) | |
31 |
|
31 | |||
32 |
|
32 | |||
33 | #----------------------------------------------------------------------------- |
|
33 | #----------------------------------------------------------------------------- | |
34 | # Helper classes for Components |
|
34 | # Helper classes for Components | |
35 | #----------------------------------------------------------------------------- |
|
35 | #----------------------------------------------------------------------------- | |
36 |
|
36 | |||
37 |
|
37 | |||
38 | class ComponentError(Exception): |
|
38 | class ComponentError(Exception): | |
39 | pass |
|
39 | pass | |
40 |
|
40 | |||
41 | class MetaComponentTracker(type): |
|
41 | class MetaComponentTracker(type): | |
42 | """A metaclass that tracks instances of Components and its subclasses.""" |
|
42 | """A metaclass that tracks instances of Components and its subclasses.""" | |
43 |
|
43 | |||
44 | def __init__(cls, name, bases, d): |
|
44 | def __init__(cls, name, bases, d): | |
45 | super(MetaComponentTracker, cls).__init__(name, bases, d) |
|
45 | super(MetaComponentTracker, cls).__init__(name, bases, d) | |
46 | cls.__instance_refs = WeakValueDictionary() |
|
46 | cls.__instance_refs = WeakValueDictionary() | |
47 | cls.__numcreated = 0 |
|
47 | cls.__numcreated = 0 | |
48 |
|
48 | |||
49 | def __call__(cls, *args, **kw): |
|
49 | def __call__(cls, *args, **kw): | |
50 | """Called when *class* is called (instantiated)!!! |
|
50 | """Called when *class* is called (instantiated)!!! | |
51 |
|
51 | |||
52 | When a Component or subclass is instantiated, this is called and |
|
52 | When a Component or subclass is instantiated, this is called and | |
53 | the instance is saved in a WeakValueDictionary for tracking. |
|
53 | the instance is saved in a WeakValueDictionary for tracking. | |
54 | """ |
|
54 | """ | |
55 |
|
55 | |||
56 | instance = super(MetaComponentTracker, cls).__call__(*args, **kw) |
|
56 | instance = super(MetaComponentTracker, cls).__call__(*args, **kw) | |
57 | for c in cls.__mro__: |
|
57 | for c in cls.__mro__: | |
58 | if issubclass(cls, c) and issubclass(c, Component): |
|
58 | if issubclass(cls, c) and issubclass(c, Component): | |
59 | c.__numcreated += 1 |
|
59 | c.__numcreated += 1 | |
60 | c.__instance_refs[c.__numcreated] = instance |
|
60 | c.__instance_refs[c.__numcreated] = instance | |
61 | return instance |
|
61 | return instance | |
62 |
|
62 | |||
63 | def get_instances(cls, name=None, klass=None, root=None): |
|
63 | def get_instances(cls, name=None, klass=None, root=None): | |
64 | """Get all instances of cls and its subclasses. |
|
64 | """Get all instances of cls and its subclasses. | |
65 |
|
65 | |||
66 | Parameters |
|
66 | Parameters | |
67 | ---------- |
|
67 | ---------- | |
68 | name : str |
|
68 | name : str | |
69 | Limit to components with this name. |
|
69 | Limit to components with this name. | |
70 | klass : class |
|
70 | klass : class | |
71 | Limit to components having isinstance(component, klass) |
|
71 | Limit to components having isinstance(component, klass) | |
72 | root : Component or subclass |
|
72 | root : Component or subclass | |
73 | Limit to components having this root. |
|
73 | Limit to components having this root. | |
74 | """ |
|
74 | """ | |
75 | instances = cls.__instance_refs.values() |
|
75 | instances = cls.__instance_refs.values() | |
76 | if name is not None: |
|
76 | if name is not None: | |
77 | instances = [i for i in instances if i.name == name] |
|
77 | instances = [i for i in instances if i.name == name] | |
78 | if klass is not None: |
|
78 | if klass is not None: | |
79 | instances = [i for i in instances if isinstance(i, klass)] |
|
79 | instances = [i for i in instances if isinstance(i, klass)] | |
80 | if root is not None: |
|
80 | if root is not None: | |
81 | instances = [i for i in instances if i.root == root] |
|
81 | instances = [i for i in instances if i.root == root] | |
82 | return instances |
|
82 | return instances | |
83 |
|
83 | |||
84 | def get_instances_by_condition(cls, call, name=None, klass=None, root=None): |
|
84 | def get_instances_by_condition(cls, call, name=None, klass=None, root=None): | |
85 | """Get all instances of cls, i such that call(i)==True. |
|
85 | """Get all instances of cls, i such that call(i)==True. | |
86 |
|
86 | |||
87 | This also takes the ``name``, ``klass`` and ``root`` arguments of |
|
87 | This also takes the ``name``, ``klass`` and ``root`` arguments of | |
88 | :meth:`get_instance` |
|
88 | :meth:`get_instance` | |
89 | """ |
|
89 | """ | |
90 | return [i for i in cls.get_instances(name,klass,root) if call(i)] |
|
90 | return [i for i in cls.get_instances(name,klass,root) if call(i)] | |
91 |
|
91 | |||
92 |
|
92 | |||
93 | class ComponentNameGenerator(object): |
|
93 | class ComponentNameGenerator(object): | |
94 | """A Singleton to generate unique component names.""" |
|
94 | """A Singleton to generate unique component names.""" | |
95 |
|
95 | |||
96 | def __init__(self, prefix): |
|
96 | def __init__(self, prefix): | |
97 | self.prefix = prefix |
|
97 | self.prefix = prefix | |
98 | self.i = 0 |
|
98 | self.i = 0 | |
99 |
|
99 | |||
100 | def __call__(self): |
|
100 | def __call__(self): | |
101 | count = self.i |
|
101 | count = self.i | |
102 | self.i += 1 |
|
102 | self.i += 1 | |
103 | return "%s%s" % (self.prefix, count) |
|
103 | return "%s%s" % (self.prefix, count) | |
104 |
|
104 | |||
105 |
|
105 | |||
106 | ComponentNameGenerator = ComponentNameGenerator('ipython.component') |
|
106 | ComponentNameGenerator = ComponentNameGenerator('ipython.component') | |
107 |
|
107 | |||
108 |
|
108 | |||
109 | class MetaComponent(MetaHasTraitlets, MetaComponentTracker): |
|
109 | class MetaComponent(MetaHasTraitlets, MetaComponentTracker): | |
110 | pass |
|
110 | pass | |
111 |
|
111 | |||
112 |
|
112 | |||
113 | #----------------------------------------------------------------------------- |
|
113 | #----------------------------------------------------------------------------- | |
114 | # Component implementation |
|
114 | # Component implementation | |
115 | #----------------------------------------------------------------------------- |
|
115 | #----------------------------------------------------------------------------- | |
116 |
|
116 | |||
117 |
|
117 | |||
118 | class Component(HasTraitlets): |
|
118 | class Component(HasTraitlets): | |
119 |
|
119 | |||
120 | __metaclass__ = MetaComponent |
|
120 | __metaclass__ = MetaComponent | |
121 |
|
121 | |||
122 | # Traitlets are fun! |
|
122 | # Traitlets are fun! | |
123 | config = Instance(Struct,(),{}) |
|
123 | config = Instance(Struct,(),{}) | |
124 | parent = This() |
|
124 | parent = This() | |
125 | root = This() |
|
125 | root = This() | |
126 | created = None |
|
126 | created = None | |
127 |
|
127 | |||
128 | def __init__(self, parent, name=None, config=None): |
|
128 | def __init__(self, parent, name=None, config=None): | |
129 | """Create a component given a parent and possibly and name and config. |
|
129 | """Create a component given a parent and possibly and name and config. | |
130 |
|
130 | |||
131 | Parameters |
|
131 | Parameters | |
132 | ---------- |
|
132 | ---------- | |
133 | parent : Component subclass |
|
133 | parent : Component subclass | |
134 | The parent in the component graph. The parent is used |
|
134 | The parent in the component graph. The parent is used | |
135 | to get the root of the component graph. |
|
135 | to get the root of the component graph. | |
136 | name : str |
|
136 | name : str | |
137 | The unique name of the component. If empty, then a unique |
|
137 | The unique name of the component. If empty, then a unique | |
138 | one will be autogenerated. |
|
138 | one will be autogenerated. | |
139 | config : Struct |
|
139 | config : Struct | |
140 | If this is empty, self.config = parent.config, otherwise |
|
140 | If this is empty, self.config = parent.config, otherwise | |
141 | self.config = config and root.config is ignored. This argument |
|
141 | self.config = config and root.config is ignored. This argument | |
142 | should only be used to *override* the automatic inheritance of |
|
142 | should only be used to *override* the automatic inheritance of | |
143 | parent.config. If a caller wants to modify parent.config |
|
143 | parent.config. If a caller wants to modify parent.config | |
144 | (not override), the caller should make a copy and change |
|
144 | (not override), the caller should make a copy and change | |
145 | attributes and then pass the copy to this argument. |
|
145 | attributes and then pass the copy to this argument. | |
146 |
|
146 | |||
147 | Notes |
|
147 | Notes | |
148 | ----- |
|
148 | ----- | |
149 | Subclasses of Component must call the :meth:`__init__` method of |
|
149 | Subclasses of Component must call the :meth:`__init__` method of | |
150 | :class:`Component` *before* doing anything else and using |
|
150 | :class:`Component` *before* doing anything else and using | |
151 | :func:`super`:: |
|
151 | :func:`super`:: | |
152 |
|
152 | |||
153 | class MyComponent(Component): |
|
153 | class MyComponent(Component): | |
154 | def __init__(self, parent, name=None, config=None): |
|
154 | def __init__(self, parent, name=None, config=None): | |
155 | super(MyComponent, self).__init__(parent, name, config) |
|
155 | super(MyComponent, self).__init__(parent, name, config) | |
156 | # Then any other code you need to finish initialization. |
|
156 | # Then any other code you need to finish initialization. | |
157 |
|
157 | |||
158 | This ensures that the :attr:`parent`, :attr:`name` and :attr:`config` |
|
158 | This ensures that the :attr:`parent`, :attr:`name` and :attr:`config` | |
159 | attributes are handled properly. |
|
159 | attributes are handled properly. | |
160 | """ |
|
160 | """ | |
161 | super(Component, self).__init__() |
|
161 | super(Component, self).__init__() | |
162 | self._children = [] |
|
162 | self._children = [] | |
163 | if name is None: |
|
163 | if name is None: | |
164 | self.name = ComponentNameGenerator() |
|
164 | self.name = ComponentNameGenerator() | |
165 | else: |
|
165 | else: | |
166 | self.name = name |
|
166 | self.name = name | |
167 | self.root = self # This is the default, it is set when parent is set |
|
167 | self.root = self # This is the default, it is set when parent is set | |
168 | self.parent = parent |
|
168 | self.parent = parent | |
169 | if config is not None: |
|
169 | if config is not None: | |
170 | self.config = deepcopy(config) |
|
170 | self.config = deepcopy(config) | |
171 | else: |
|
171 | else: | |
172 | if self.parent is not None: |
|
172 | if self.parent is not None: | |
173 | self.config = deepcopy(self.parent.config) |
|
173 | self.config = deepcopy(self.parent.config) | |
174 |
|
174 | |||
175 | self.created = datetime.datetime.now() |
|
175 | self.created = datetime.datetime.now() | |
176 |
|
176 | |||
177 | #------------------------------------------------------------------------- |
|
177 | #------------------------------------------------------------------------- | |
178 | # Static traitlet notifiations |
|
178 | # Static traitlet notifiations | |
179 | #------------------------------------------------------------------------- |
|
179 | #------------------------------------------------------------------------- | |
180 |
|
180 | |||
181 | def _parent_changed(self, name, old, new): |
|
181 | def _parent_changed(self, name, old, new): | |
182 | if old is not None: |
|
182 | if old is not None: | |
183 | old._remove_child(self) |
|
183 | old._remove_child(self) | |
184 | if new is not None: |
|
184 | if new is not None: | |
185 | new._add_child(self) |
|
185 | new._add_child(self) | |
186 |
|
186 | |||
187 | if new is None: |
|
187 | if new is None: | |
188 | self.root = self |
|
188 | self.root = self | |
189 | else: |
|
189 | else: | |
190 | self.root = new.root |
|
190 | self.root = new.root | |
191 |
|
191 | |||
192 | def _root_changed(self, name, old, new): |
|
192 | def _root_changed(self, name, old, new): | |
193 | if self.parent is None: |
|
193 | if self.parent is None: | |
194 | if not (new is self): |
|
194 | if not (new is self): | |
195 | raise ComponentError("Root not self, but parent is None.") |
|
195 | raise ComponentError("Root not self, but parent is None.") | |
196 | else: |
|
196 | else: | |
197 | if not self.parent.root is new: |
|
197 | if not self.parent.root is new: | |
198 | raise ComponentError("Error in setting the root attribute: " |
|
198 | raise ComponentError("Error in setting the root attribute: " | |
199 | "root != parent.root") |
|
199 | "root != parent.root") | |
200 |
|
200 | |||
201 | def _config_changed(self, name, old, new): |
|
201 | def _config_changed(self, name, old, new): | |
202 | # Get all traitlets with a config_key metadata entry |
|
202 | # Get all traitlets with a config_key metadata entry | |
203 | traitlets = self.traitlets('config_key') |
|
203 | traitlets = self.traitlets('config_key') | |
204 | for k, v in traitlets.items(): |
|
204 | for k, v in traitlets.items(): | |
205 | try: |
|
205 | try: | |
206 | config_value = new[v.get_metadata('config_key')] |
|
206 | config_value = new[v.get_metadata('config_key')] | |
207 | except KeyError: |
|
207 | except KeyError: | |
208 | pass |
|
208 | pass | |
209 | else: |
|
209 | else: | |
210 | setattr(self, k, config_value) |
|
210 | setattr(self, k, config_value) | |
211 |
|
211 | |||
212 | @property |
|
212 | @property | |
213 | def children(self): |
|
213 | def children(self): | |
214 | """A list of all my child components.""" |
|
214 | """A list of all my child components.""" | |
215 | return self._children |
|
215 | return self._children | |
216 |
|
216 | |||
217 | def _remove_child(self, child): |
|
217 | def _remove_child(self, child): | |
218 | """A private method for removing children componenets.""" |
|
218 | """A private method for removing children componenets.""" | |
219 | if child in self._children: |
|
219 | if child in self._children: | |
220 | index = self._children.index(child) |
|
220 | index = self._children.index(child) | |
221 | del self._children[index] |
|
221 | del self._children[index] | |
222 |
|
222 | |||
223 | def _add_child(self, child): |
|
223 | def _add_child(self, child): | |
224 | """A private method for adding children componenets.""" |
|
224 | """A private method for adding children componenets.""" | |
225 | if child not in self._children: |
|
225 | if child not in self._children: | |
226 | self._children.append(child) |
|
226 | self._children.append(child) | |
227 |
|
227 | |||
228 | def __repr__(self): |
|
228 | def __repr__(self): | |
229 | return "<Component('%s')>" % self.name |
|
229 | return "<Component('%s')>" % self.name |
@@ -1,3047 +1,3059 b'' | |||||
1 | # -*- coding: utf-8 -*- |
|
1 | # -*- coding: utf-8 -*- | |
2 | """ |
|
2 | """ | |
3 | Main IPython Component |
|
3 | Main IPython Component | |
4 | """ |
|
4 | """ | |
5 |
|
5 | |||
6 | #----------------------------------------------------------------------------- |
|
6 | #----------------------------------------------------------------------------- | |
7 | # Copyright (C) 2001 Janko Hauser <jhauser@zscout.de> |
|
7 | # Copyright (C) 2001 Janko Hauser <jhauser@zscout.de> | |
8 | # Copyright (C) 2001-2007 Fernando Perez. <fperez@colorado.edu> |
|
8 | # Copyright (C) 2001-2007 Fernando Perez. <fperez@colorado.edu> | |
9 | # Copyright (C) 2008-2009 The IPython Development Team |
|
9 | # Copyright (C) 2008-2009 The IPython Development Team | |
10 | # |
|
10 | # | |
11 | # Distributed under the terms of the BSD License. The full license is in |
|
11 | # Distributed under the terms of the BSD License. The full license is in | |
12 | # the file COPYING, distributed as part of this software. |
|
12 | # the file COPYING, distributed as part of this software. | |
13 | #----------------------------------------------------------------------------- |
|
13 | #----------------------------------------------------------------------------- | |
14 |
|
14 | |||
15 | #----------------------------------------------------------------------------- |
|
15 | #----------------------------------------------------------------------------- | |
16 | # Imports |
|
16 | # Imports | |
17 | #----------------------------------------------------------------------------- |
|
17 | #----------------------------------------------------------------------------- | |
18 |
|
18 | |||
19 | import __main__ |
|
19 | import __main__ | |
20 | import __builtin__ |
|
20 | import __builtin__ | |
21 | import StringIO |
|
21 | import StringIO | |
22 | import bdb |
|
22 | import bdb | |
23 | import codeop |
|
23 | import codeop | |
24 | import exceptions |
|
24 | import exceptions | |
25 | import glob |
|
25 | import glob | |
26 | import keyword |
|
26 | import keyword | |
27 | import new |
|
27 | import new | |
28 | import os |
|
28 | import os | |
29 | import re |
|
29 | import re | |
30 | import shutil |
|
30 | import shutil | |
31 | import string |
|
31 | import string | |
32 | import sys |
|
32 | import sys | |
33 | import tempfile |
|
33 | import tempfile | |
34 |
|
34 | |||
35 | from IPython.core import ultratb |
|
35 | from IPython.core import ultratb | |
36 | from IPython.core import debugger, oinspect |
|
36 | from IPython.core import debugger, oinspect | |
37 | from IPython.core import shadowns |
|
37 | from IPython.core import shadowns | |
38 | from IPython.core import history as ipcorehist |
|
38 | from IPython.core import history as ipcorehist | |
39 | from IPython.core import prefilter |
|
39 | from IPython.core import prefilter | |
40 | from IPython.core.autocall import IPyAutocall |
|
40 | from IPython.core.autocall import IPyAutocall | |
41 | from IPython.core.fakemodule import FakeModule, init_fakemod_dict |
|
41 | from IPython.core.fakemodule import FakeModule, init_fakemod_dict | |
42 | from IPython.core.logger import Logger |
|
42 | from IPython.core.logger import Logger | |
43 | from IPython.core.magic import Magic |
|
43 | from IPython.core.magic import Magic | |
44 | from IPython.core.prompts import CachedOutput |
|
44 | from IPython.core.prompts import CachedOutput | |
45 | from IPython.core.page import page |
|
45 | from IPython.core.page import page | |
46 | from IPython.core.component import Component |
|
46 | from IPython.core.component import Component | |
47 | from IPython.core.oldusersetup import user_setup |
|
47 | from IPython.core.oldusersetup import user_setup | |
48 | from IPython.core.usage import interactive_usage, default_banner |
|
48 | from IPython.core.usage import interactive_usage, default_banner | |
49 | from IPython.core.error import TryNext, UsageError |
|
49 | from IPython.core.error import TryNext, UsageError | |
50 |
|
50 | |||
51 | from IPython.extensions import pickleshare |
|
51 | from IPython.extensions import pickleshare | |
52 | from IPython.external.Itpl import ItplNS |
|
52 | from IPython.external.Itpl import ItplNS | |
53 | from IPython.lib.backgroundjobs import BackgroundJobManager |
|
53 | from IPython.lib.backgroundjobs import BackgroundJobManager | |
54 | from IPython.utils.ipstruct import Struct |
|
54 | from IPython.utils.ipstruct import Struct | |
55 | from IPython.utils import PyColorize |
|
55 | from IPython.utils import PyColorize | |
56 | from IPython.utils.genutils import * |
|
56 | from IPython.utils.genutils import * | |
57 | from IPython.utils.strdispatch import StrDispatch |
|
57 | from IPython.utils.strdispatch import StrDispatch | |
58 | from IPython.utils.platutils import toggle_set_term_title, set_term_title |
|
58 | from IPython.utils.platutils import toggle_set_term_title, set_term_title | |
59 |
|
59 | |||
60 | from IPython.utils.traitlets import ( |
|
60 | from IPython.utils.traitlets import ( | |
61 | Int, Float, Str, CBool, CaselessStrEnum, Enum, List |
|
61 | Int, Float, Str, CBool, CaselessStrEnum, Enum, List, Unicode | |
62 | ) |
|
62 | ) | |
63 |
|
63 | |||
64 | #----------------------------------------------------------------------------- |
|
64 | #----------------------------------------------------------------------------- | |
65 | # Globals |
|
65 | # Globals | |
66 | #----------------------------------------------------------------------------- |
|
66 | #----------------------------------------------------------------------------- | |
67 |
|
67 | |||
68 |
|
68 | |||
69 | # store the builtin raw_input globally, and use this always, in case user code |
|
69 | # store the builtin raw_input globally, and use this always, in case user code | |
70 | # overwrites it (like wx.py.PyShell does) |
|
70 | # overwrites it (like wx.py.PyShell does) | |
71 | raw_input_original = raw_input |
|
71 | raw_input_original = raw_input | |
72 |
|
72 | |||
73 | # compiled regexps for autoindent management |
|
73 | # compiled regexps for autoindent management | |
74 | dedent_re = re.compile(r'^\s+raise|^\s+return|^\s+pass') |
|
74 | dedent_re = re.compile(r'^\s+raise|^\s+return|^\s+pass') | |
75 |
|
75 | |||
76 |
|
76 | |||
77 | #----------------------------------------------------------------------------- |
|
77 | #----------------------------------------------------------------------------- | |
78 | # Utilities |
|
78 | # Utilities | |
79 | #----------------------------------------------------------------------------- |
|
79 | #----------------------------------------------------------------------------- | |
80 |
|
80 | |||
81 |
|
81 | |||
82 | ini_spaces_re = re.compile(r'^(\s+)') |
|
82 | ini_spaces_re = re.compile(r'^(\s+)') | |
83 |
|
83 | |||
84 |
|
84 | |||
85 | def num_ini_spaces(strng): |
|
85 | def num_ini_spaces(strng): | |
86 | """Return the number of initial spaces in a string""" |
|
86 | """Return the number of initial spaces in a string""" | |
87 |
|
87 | |||
88 | ini_spaces = ini_spaces_re.match(strng) |
|
88 | ini_spaces = ini_spaces_re.match(strng) | |
89 | if ini_spaces: |
|
89 | if ini_spaces: | |
90 | return ini_spaces.end() |
|
90 | return ini_spaces.end() | |
91 | else: |
|
91 | else: | |
92 | return 0 |
|
92 | return 0 | |
93 |
|
93 | |||
94 |
|
94 | |||
95 | def softspace(file, newvalue): |
|
95 | def softspace(file, newvalue): | |
96 | """Copied from code.py, to remove the dependency""" |
|
96 | """Copied from code.py, to remove the dependency""" | |
97 |
|
97 | |||
98 | oldvalue = 0 |
|
98 | oldvalue = 0 | |
99 | try: |
|
99 | try: | |
100 | oldvalue = file.softspace |
|
100 | oldvalue = file.softspace | |
101 | except AttributeError: |
|
101 | except AttributeError: | |
102 | pass |
|
102 | pass | |
103 | try: |
|
103 | try: | |
104 | file.softspace = newvalue |
|
104 | file.softspace = newvalue | |
105 | except (AttributeError, TypeError): |
|
105 | except (AttributeError, TypeError): | |
106 | # "attribute-less object" or "read-only attributes" |
|
106 | # "attribute-less object" or "read-only attributes" | |
107 | pass |
|
107 | pass | |
108 | return oldvalue |
|
108 | return oldvalue | |
109 |
|
109 | |||
110 |
|
110 | |||
111 | class SpaceInInput(exceptions.Exception): pass |
|
111 | class SpaceInInput(exceptions.Exception): pass | |
112 |
|
112 | |||
113 | class Bunch: pass |
|
113 | class Bunch: pass | |
114 |
|
114 | |||
115 | class Undefined: pass |
|
115 | class Undefined: pass | |
116 |
|
116 | |||
117 | class Quitter(object): |
|
117 | class Quitter(object): | |
118 | """Simple class to handle exit, similar to Python 2.5's. |
|
118 | """Simple class to handle exit, similar to Python 2.5's. | |
119 |
|
119 | |||
120 | It handles exiting in an ipython-safe manner, which the one in Python 2.5 |
|
120 | It handles exiting in an ipython-safe manner, which the one in Python 2.5 | |
121 | doesn't do (obviously, since it doesn't know about ipython).""" |
|
121 | doesn't do (obviously, since it doesn't know about ipython).""" | |
122 |
|
122 | |||
123 | def __init__(self,shell,name): |
|
123 | def __init__(self,shell,name): | |
124 | self.shell = shell |
|
124 | self.shell = shell | |
125 | self.name = name |
|
125 | self.name = name | |
126 |
|
126 | |||
127 | def __repr__(self): |
|
127 | def __repr__(self): | |
128 | return 'Type %s() to exit.' % self.name |
|
128 | return 'Type %s() to exit.' % self.name | |
129 | __str__ = __repr__ |
|
129 | __str__ = __repr__ | |
130 |
|
130 | |||
131 | def __call__(self): |
|
131 | def __call__(self): | |
132 | self.shell.exit() |
|
132 | self.shell.exit() | |
133 |
|
133 | |||
134 | class InputList(list): |
|
134 | class InputList(list): | |
135 | """Class to store user input. |
|
135 | """Class to store user input. | |
136 |
|
136 | |||
137 | It's basically a list, but slices return a string instead of a list, thus |
|
137 | It's basically a list, but slices return a string instead of a list, thus | |
138 | allowing things like (assuming 'In' is an instance): |
|
138 | allowing things like (assuming 'In' is an instance): | |
139 |
|
139 | |||
140 | exec In[4:7] |
|
140 | exec In[4:7] | |
141 |
|
141 | |||
142 | or |
|
142 | or | |
143 |
|
143 | |||
144 | exec In[5:9] + In[14] + In[21:25]""" |
|
144 | exec In[5:9] + In[14] + In[21:25]""" | |
145 |
|
145 | |||
146 | def __getslice__(self,i,j): |
|
146 | def __getslice__(self,i,j): | |
147 | return ''.join(list.__getslice__(self,i,j)) |
|
147 | return ''.join(list.__getslice__(self,i,j)) | |
148 |
|
148 | |||
149 | class SyntaxTB(ultratb.ListTB): |
|
149 | class SyntaxTB(ultratb.ListTB): | |
150 | """Extension which holds some state: the last exception value""" |
|
150 | """Extension which holds some state: the last exception value""" | |
151 |
|
151 | |||
152 | def __init__(self,color_scheme = 'NoColor'): |
|
152 | def __init__(self,color_scheme = 'NoColor'): | |
153 | ultratb.ListTB.__init__(self,color_scheme) |
|
153 | ultratb.ListTB.__init__(self,color_scheme) | |
154 | self.last_syntax_error = None |
|
154 | self.last_syntax_error = None | |
155 |
|
155 | |||
156 | def __call__(self, etype, value, elist): |
|
156 | def __call__(self, etype, value, elist): | |
157 | self.last_syntax_error = value |
|
157 | self.last_syntax_error = value | |
158 | ultratb.ListTB.__call__(self,etype,value,elist) |
|
158 | ultratb.ListTB.__call__(self,etype,value,elist) | |
159 |
|
159 | |||
160 | def clear_err_state(self): |
|
160 | def clear_err_state(self): | |
161 | """Return the current error state and clear it""" |
|
161 | """Return the current error state and clear it""" | |
162 | e = self.last_syntax_error |
|
162 | e = self.last_syntax_error | |
163 | self.last_syntax_error = None |
|
163 | self.last_syntax_error = None | |
164 | return e |
|
164 | return e | |
165 |
|
165 | |||
166 | def get_default_editor(): |
|
166 | def get_default_editor(): | |
167 | try: |
|
167 | try: | |
168 | ed = os.environ['EDITOR'] |
|
168 | ed = os.environ['EDITOR'] | |
169 | except KeyError: |
|
169 | except KeyError: | |
170 | if os.name == 'posix': |
|
170 | if os.name == 'posix': | |
171 | ed = 'vi' # the only one guaranteed to be there! |
|
171 | ed = 'vi' # the only one guaranteed to be there! | |
172 | else: |
|
172 | else: | |
173 | ed = 'notepad' # same in Windows! |
|
173 | ed = 'notepad' # same in Windows! | |
174 | return ed |
|
174 | return ed | |
175 |
|
175 | |||
176 |
|
176 | |||
177 | class SeparateStr(Str): |
|
177 | class SeparateStr(Str): | |
178 | """A Str subclass to validate separate_in, separate_out, etc. |
|
178 | """A Str subclass to validate separate_in, separate_out, etc. | |
179 |
|
179 | |||
180 | This is a Str based traitlet that converts '0'->'' and '\\n'->'\n'. |
|
180 | This is a Str based traitlet that converts '0'->'' and '\\n'->'\n'. | |
181 | """ |
|
181 | """ | |
182 |
|
182 | |||
183 | def validate(self, obj, value): |
|
183 | def validate(self, obj, value): | |
184 | if value == '0': value = '' |
|
184 | if value == '0': value = '' | |
185 | value = value.replace('\\n','\n') |
|
185 | value = value.replace('\\n','\n') | |
186 | return super(SeparateStr, self).validate(obj, value) |
|
186 | return super(SeparateStr, self).validate(obj, value) | |
187 |
|
187 | |||
188 |
|
188 | |||
189 | #----------------------------------------------------------------------------- |
|
189 | #----------------------------------------------------------------------------- | |
190 | # Main IPython class |
|
190 | # Main IPython class | |
191 | #----------------------------------------------------------------------------- |
|
191 | #----------------------------------------------------------------------------- | |
192 |
|
192 | |||
193 | # FIXME: the Magic class is a mixin for now, and will unfortunately remain so |
|
193 | # FIXME: the Magic class is a mixin for now, and will unfortunately remain so | |
194 | # until a full rewrite is made. I've cleaned all cross-class uses of |
|
194 | # until a full rewrite is made. I've cleaned all cross-class uses of | |
195 | # attributes and methods, but too much user code out there relies on the |
|
195 | # attributes and methods, but too much user code out there relies on the | |
196 | # equlity %foo == __IP.magic_foo, so I can't actually remove the mixin usage. |
|
196 | # equlity %foo == __IP.magic_foo, so I can't actually remove the mixin usage. | |
197 | # |
|
197 | # | |
198 | # But at least now, all the pieces have been separated and we could, in |
|
198 | # But at least now, all the pieces have been separated and we could, in | |
199 | # principle, stop using the mixin. This will ease the transition to the |
|
199 | # principle, stop using the mixin. This will ease the transition to the | |
200 | # chainsaw branch. |
|
200 | # chainsaw branch. | |
201 |
|
201 | |||
202 | # For reference, the following is the list of 'self.foo' uses in the Magic |
|
202 | # For reference, the following is the list of 'self.foo' uses in the Magic | |
203 | # class as of 2005-12-28. These are names we CAN'T use in the main ipython |
|
203 | # class as of 2005-12-28. These are names we CAN'T use in the main ipython | |
204 | # class, to prevent clashes. |
|
204 | # class, to prevent clashes. | |
205 |
|
205 | |||
206 | # ['self.__class__', 'self.__dict__', 'self._inspect', 'self._ofind', |
|
206 | # ['self.__class__', 'self.__dict__', 'self._inspect', 'self._ofind', | |
207 | # 'self.arg_err', 'self.extract_input', 'self.format_', 'self.lsmagic', |
|
207 | # 'self.arg_err', 'self.extract_input', 'self.format_', 'self.lsmagic', | |
208 | # 'self.magic_', 'self.options_table', 'self.parse', 'self.shell', |
|
208 | # 'self.magic_', 'self.options_table', 'self.parse', 'self.shell', | |
209 | # 'self.value'] |
|
209 | # 'self.value'] | |
210 |
|
210 | |||
211 | class InteractiveShell(Component, Magic): |
|
211 | class InteractiveShell(Component, Magic): | |
212 | """An enhanced console for Python.""" |
|
212 | """An enhanced console for Python.""" | |
213 |
|
213 | |||
214 | autocall = Enum((0,1,2), config_key='AUTOCALL') |
|
214 | autocall = Enum((0,1,2), config_key='AUTOCALL') | |
215 | autoedit_syntax = CBool(False, config_key='AUTOEDIT_SYNTAX') |
|
215 | autoedit_syntax = CBool(False, config_key='AUTOEDIT_SYNTAX') | |
216 | autoindent = CBool(True, config_key='AUTOINDENT') |
|
216 | autoindent = CBool(True, config_key='AUTOINDENT') | |
217 | automagic = CBool(True, config_key='AUTOMAGIC') |
|
217 | automagic = CBool(True, config_key='AUTOMAGIC') | |
218 | display_banner = CBool(True, config_key='DISPLAY_BANNER') |
|
218 | display_banner = CBool(True, config_key='DISPLAY_BANNER') | |
219 | banner = Str('') |
|
219 | banner = Str('') | |
220 | banner1 = Str(default_banner, config_key='BANNER1') |
|
220 | banner1 = Str(default_banner, config_key='BANNER1') | |
221 | banner2 = Str('', config_key='BANNER2') |
|
221 | banner2 = Str('', config_key='BANNER2') | |
222 | c = Str('', config_key='C') |
|
222 | c = Str('', config_key='C') | |
223 | cache_size = Int(1000, config_key='CACHE_SIZE') |
|
223 | cache_size = Int(1000, config_key='CACHE_SIZE') | |
224 | classic = CBool(False, config_key='CLASSIC') |
|
224 | classic = CBool(False, config_key='CLASSIC') | |
225 | color_info = CBool(True, config_key='COLOR_INFO') |
|
225 | color_info = CBool(True, config_key='COLOR_INFO') | |
226 | colors = CaselessStrEnum(('NoColor','LightBG','Linux'), |
|
226 | colors = CaselessStrEnum(('NoColor','LightBG','Linux'), | |
227 | default_value='LightBG', config_key='COLORS') |
|
227 | default_value='LightBG', config_key='COLORS') | |
228 | confirm_exit = CBool(True, config_key='CONFIRM_EXIT') |
|
228 | confirm_exit = CBool(True, config_key='CONFIRM_EXIT') | |
229 | debug = CBool(False, config_key='DEBUG') |
|
229 | debug = CBool(False, config_key='DEBUG') | |
230 | deep_reload = CBool(False, config_key='DEEP_RELOAD') |
|
230 | deep_reload = CBool(False, config_key='DEEP_RELOAD') | |
231 | embedded = CBool(False) |
|
231 | embedded = CBool(False) | |
232 | editor = Str(get_default_editor(), config_key='EDITOR') |
|
232 | editor = Str(get_default_editor(), config_key='EDITOR') | |
233 | filename = Str("<ipython console>") |
|
233 | filename = Str("<ipython console>") | |
234 | interactive = CBool(False, config_key='INTERACTIVE') |
|
234 | interactive = CBool(False, config_key='INTERACTIVE') | |
|
235 | ipythondir= Unicode('', config_key='IPYTHONDIR') # Set to os.getcwd() in __init__ | |||
235 | logstart = CBool(False, config_key='LOGSTART') |
|
236 | logstart = CBool(False, config_key='LOGSTART') | |
236 | logfile = Str('', config_key='LOGFILE') |
|
237 | logfile = Str('', config_key='LOGFILE') | |
237 | logplay = Str('', config_key='LOGPLAY') |
|
238 | logplay = Str('', config_key='LOGPLAY') | |
238 | multi_line_specials = CBool(True, config_key='MULTI_LINE_SPECIALS') |
|
239 | multi_line_specials = CBool(True, config_key='MULTI_LINE_SPECIALS') | |
239 | object_info_string_level = Enum((0,1,2), default_value=0, |
|
240 | object_info_string_level = Enum((0,1,2), default_value=0, | |
240 | config_keys='OBJECT_INFO_STRING_LEVEL') |
|
241 | config_keys='OBJECT_INFO_STRING_LEVEL') | |
241 | pager = Str('less', config_key='PAGER') |
|
242 | pager = Str('less', config_key='PAGER') | |
242 | pdb = CBool(False, config_key='PDB') |
|
243 | pdb = CBool(False, config_key='PDB') | |
243 | pprint = CBool(True, config_key='PPRINT') |
|
244 | pprint = CBool(True, config_key='PPRINT') | |
244 | profile = Str('', config_key='PROFILE') |
|
245 | profile = Str('', config_key='PROFILE') | |
245 | prompt_in1 = Str('In [\\#]: ', config_key='PROMPT_IN1') |
|
246 | prompt_in1 = Str('In [\\#]: ', config_key='PROMPT_IN1') | |
246 | prompt_in2 = Str(' .\\D.: ', config_key='PROMPT_IN2') |
|
247 | prompt_in2 = Str(' .\\D.: ', config_key='PROMPT_IN2') | |
247 | prompt_out = Str('Out[\\#]: ', config_key='PROMPT_OUT1') |
|
248 | prompt_out = Str('Out[\\#]: ', config_key='PROMPT_OUT1') | |
248 | prompts_pad_left = CBool(True, config_key='PROMPTS_PAD_LEFT') |
|
249 | prompts_pad_left = CBool(True, config_key='PROMPTS_PAD_LEFT') | |
249 | quiet = CBool(False, config_key='QUIET') |
|
250 | quiet = CBool(False, config_key='QUIET') | |
250 |
|
251 | |||
251 | readline_use = CBool(True, config_key='READLINE_USE') |
|
252 | readline_use = CBool(True, config_key='READLINE_USE') | |
252 | readline_merge_completions = CBool(True, |
|
253 | readline_merge_completions = CBool(True, | |
253 | config_key='READLINE_MERGE_COMPLETIONS') |
|
254 | config_key='READLINE_MERGE_COMPLETIONS') | |
254 | readline_omit__names = Enum((0,1,2), default_value=0, |
|
255 | readline_omit__names = Enum((0,1,2), default_value=0, | |
255 | config_key='READLINE_OMIT_NAMES') |
|
256 | config_key='READLINE_OMIT_NAMES') | |
256 | readline_remove_delims = Str('-/~', config_key='READLINE_REMOVE_DELIMS') |
|
257 | readline_remove_delims = Str('-/~', config_key='READLINE_REMOVE_DELIMS') | |
257 | readline_parse_and_bind = List([ |
|
258 | readline_parse_and_bind = List([ | |
258 | 'tab: complete', |
|
259 | 'tab: complete', | |
259 | '"\C-l": possible-completions', |
|
260 | '"\C-l": possible-completions', | |
260 | 'set show-all-if-ambiguous on', |
|
261 | 'set show-all-if-ambiguous on', | |
261 | '"\C-o": tab-insert', |
|
262 | '"\C-o": tab-insert', | |
262 | '"\M-i": " "', |
|
263 | '"\M-i": " "', | |
263 | '"\M-o": "\d\d\d\d"', |
|
264 | '"\M-o": "\d\d\d\d"', | |
264 | '"\M-I": "\d\d\d\d"', |
|
265 | '"\M-I": "\d\d\d\d"', | |
265 | '"\C-r": reverse-search-history', |
|
266 | '"\C-r": reverse-search-history', | |
266 | '"\C-s": forward-search-history', |
|
267 | '"\C-s": forward-search-history', | |
267 | '"\C-p": history-search-backward', |
|
268 | '"\C-p": history-search-backward', | |
268 | '"\C-n": history-search-forward', |
|
269 | '"\C-n": history-search-forward', | |
269 | '"\e[A": history-search-backward', |
|
270 | '"\e[A": history-search-backward', | |
270 | '"\e[B": history-search-forward', |
|
271 | '"\e[B": history-search-forward', | |
271 | '"\C-k": kill-line', |
|
272 | '"\C-k": kill-line', | |
272 | '"\C-u": unix-line-discard', |
|
273 | '"\C-u": unix-line-discard', | |
273 | ], allow_none=False, config_key='READLINE_PARSE_AND_BIND' |
|
274 | ], allow_none=False, config_key='READLINE_PARSE_AND_BIND' | |
274 | ) |
|
275 | ) | |
275 |
|
276 | |||
276 | screen_length = Int(0, config_key='SCREEN_LENGTH') |
|
277 | screen_length = Int(0, config_key='SCREEN_LENGTH') | |
277 |
|
278 | |||
278 | # Use custom TraitletTypes that convert '0'->'' and '\\n'->'\n' |
|
279 | # Use custom TraitletTypes that convert '0'->'' and '\\n'->'\n' | |
279 | separate_in = SeparateStr('\n', config_key='SEPARATE_IN') |
|
280 | separate_in = SeparateStr('\n', config_key='SEPARATE_IN') | |
280 | separate_out = SeparateStr('', config_key='SEPARATE_OUT') |
|
281 | separate_out = SeparateStr('', config_key='SEPARATE_OUT') | |
281 | separate_out2 = SeparateStr('', config_key='SEPARATE_OUT2') |
|
282 | separate_out2 = SeparateStr('', config_key='SEPARATE_OUT2') | |
282 |
|
283 | |||
283 | system_header = Str('IPython system call: ', config_key='SYSTEM_HEADER') |
|
284 | system_header = Str('IPython system call: ', config_key='SYSTEM_HEADER') | |
284 | system_verbose = CBool(False, config_key='SYSTEM_VERBOSE') |
|
285 | system_verbose = CBool(False, config_key='SYSTEM_VERBOSE') | |
285 | term_title = CBool(False, config_key='TERM_TITLE') |
|
286 | term_title = CBool(False, config_key='TERM_TITLE') | |
286 | wildcards_case_sensitive = CBool(True, config_key='WILDCARDS_CASE_SENSITIVE') |
|
287 | wildcards_case_sensitive = CBool(True, config_key='WILDCARDS_CASE_SENSITIVE') | |
287 | xmode = CaselessStrEnum(('Context','Plain', 'Verbose'), |
|
288 | xmode = CaselessStrEnum(('Context','Plain', 'Verbose'), | |
288 | default_value='Context', config_key='XMODE') |
|
289 | default_value='Context', config_key='XMODE') | |
289 |
|
290 | |||
290 | alias = List(allow_none=False, config_key='ALIAS') |
|
291 | alias = List(allow_none=False, config_key='ALIAS') | |
291 | autoexec = List(allow_none=False) |
|
292 | autoexec = List(allow_none=False) | |
292 |
|
293 | |||
293 | # class attribute to indicate whether the class supports threads or not. |
|
294 | # class attribute to indicate whether the class supports threads or not. | |
294 | # Subclasses with thread support should override this as needed. |
|
295 | # Subclasses with thread support should override this as needed. | |
295 | isthreaded = False |
|
296 | isthreaded = False | |
296 |
|
297 | |||
297 | def __init__(self, parent=None, config=None, usage=None, |
|
298 | def __init__(self, parent=None, ipythondir=None, config=None, usage=None, | |
298 | user_ns=None, user_global_ns=None, |
|
299 | user_ns=None, user_global_ns=None, | |
299 | banner1=None, banner2=None, |
|
300 | banner1=None, banner2=None, | |
300 | custom_exceptions=((),None), embedded=False): |
|
301 | custom_exceptions=((),None), embedded=False): | |
301 |
|
302 | |||
302 | # This is where traitlets with a config_key argument are updated |
|
303 | # This is where traitlets with a config_key argument are updated | |
303 | # from the values on config. |
|
304 | # from the values on config. | |
304 | # Ideally, from here on out, the config should only be used when |
|
305 | # Ideally, from here on out, the config should only be used when | |
305 | # passing it to children components. |
|
306 | # passing it to children components. | |
306 | super(InteractiveShell, self).__init__(parent, config=config, name='__IP') |
|
307 | super(InteractiveShell, self).__init__(parent, config=config, name='__IP') | |
307 |
|
308 | |||
|
309 | self.init_ipythondir(ipythondir) | |||
308 | self.init_instance_attrs() |
|
310 | self.init_instance_attrs() | |
309 | self.init_term_title() |
|
311 | self.init_term_title() | |
310 | self.init_usage(usage) |
|
312 | self.init_usage(usage) | |
311 | self.init_banner(banner1, banner2) |
|
313 | self.init_banner(banner1, banner2) | |
312 | self.init_embedded(embedded) |
|
314 | self.init_embedded(embedded) | |
313 | self.init_create_namespaces(user_ns, user_global_ns) |
|
315 | self.init_create_namespaces(user_ns, user_global_ns) | |
314 | self.init_history() |
|
316 | self.init_history() | |
315 | self.init_encoding() |
|
317 | self.init_encoding() | |
316 | self.init_handlers() |
|
318 | self.init_handlers() | |
317 |
|
319 | |||
318 | Magic.__init__(self, self) |
|
320 | Magic.__init__(self, self) | |
319 |
|
321 | |||
320 | self.init_syntax_highlighting() |
|
322 | self.init_syntax_highlighting() | |
321 | self.init_hooks() |
|
323 | self.init_hooks() | |
322 | self.init_pushd_popd_magic() |
|
324 | self.init_pushd_popd_magic() | |
323 | self.init_traceback_handlers(custom_exceptions) |
|
325 | self.init_traceback_handlers(custom_exceptions) | |
324 | self.init_namespaces() |
|
326 | self.init_namespaces() | |
325 | self.init_logger() |
|
327 | self.init_logger() | |
326 | self.init_aliases() |
|
328 | self.init_aliases() | |
327 | self.init_builtins() |
|
329 | self.init_builtins() | |
328 |
|
330 | |||
329 | # pre_config_initialization |
|
331 | # pre_config_initialization | |
330 | self.init_shadow_hist() |
|
332 | self.init_shadow_hist() | |
331 |
|
333 | |||
332 | # The next section should contain averything that was in ipmaker. |
|
334 | # The next section should contain averything that was in ipmaker. | |
333 | self.init_logstart() |
|
335 | self.init_logstart() | |
334 |
|
336 | |||
335 | # The following was in post_config_initialization |
|
337 | # The following was in post_config_initialization | |
336 | self.init_inspector() |
|
338 | self.init_inspector() | |
337 | self.init_readline() |
|
339 | self.init_readline() | |
338 | self.init_prompts() |
|
340 | self.init_prompts() | |
339 | self.init_displayhook() |
|
341 | self.init_displayhook() | |
340 | self.init_reload_doctest() |
|
342 | self.init_reload_doctest() | |
341 | self.init_magics() |
|
343 | self.init_magics() | |
342 | self.init_pdb() |
|
344 | self.init_pdb() | |
343 | self.hooks.late_startup_hook() |
|
345 | self.hooks.late_startup_hook() | |
344 |
|
346 | |||
345 | #------------------------------------------------------------------------- |
|
347 | #------------------------------------------------------------------------- | |
346 | # Traitlet changed handlers |
|
348 | # Traitlet changed handlers | |
347 | #------------------------------------------------------------------------- |
|
349 | #------------------------------------------------------------------------- | |
348 |
|
350 | |||
349 | def _banner1_changed(self): |
|
351 | def _banner1_changed(self): | |
350 | self.compute_banner() |
|
352 | self.compute_banner() | |
351 |
|
353 | |||
352 | def _banner2_changed(self): |
|
354 | def _banner2_changed(self): | |
353 | self.compute_banner() |
|
355 | self.compute_banner() | |
354 |
|
356 | |||
355 | @property |
|
357 | @property | |
356 | def usable_screen_length(self): |
|
358 | def usable_screen_length(self): | |
357 | if self.screen_length == 0: |
|
359 | if self.screen_length == 0: | |
358 | return 0 |
|
360 | return 0 | |
359 | else: |
|
361 | else: | |
360 | num_lines_bot = self.separate_in.count('\n')+1 |
|
362 | num_lines_bot = self.separate_in.count('\n')+1 | |
361 | return self.screen_length - num_lines_bot |
|
363 | return self.screen_length - num_lines_bot | |
362 |
|
364 | |||
363 | def _term_title_changed(self, name, new_value): |
|
365 | def _term_title_changed(self, name, new_value): | |
364 | self.init_term_title() |
|
366 | self.init_term_title() | |
365 |
|
367 | |||
366 | #------------------------------------------------------------------------- |
|
368 | #------------------------------------------------------------------------- | |
367 | # init_* methods called by __init__ |
|
369 | # init_* methods called by __init__ | |
368 | #------------------------------------------------------------------------- |
|
370 | #------------------------------------------------------------------------- | |
369 |
|
371 | |||
|
372 | def init_ipythondir(self, ipythondir): | |||
|
373 | if ipythondir is not None: | |||
|
374 | self.ipythondir = ipythondir | |||
|
375 | return | |||
|
376 | ||||
|
377 | if not hasattr(self.config, 'IPYTHONDIR'): | |||
|
378 | # cdw is always defined | |||
|
379 | self.ipythondir = os.getcwd() | |||
|
380 | return | |||
|
381 | ||||
370 | def init_instance_attrs(self): |
|
382 | def init_instance_attrs(self): | |
371 | self.jobs = BackgroundJobManager() |
|
383 | self.jobs = BackgroundJobManager() | |
372 | self.more = False |
|
384 | self.more = False | |
373 |
|
385 | |||
374 | # command compiler |
|
386 | # command compiler | |
375 | self.compile = codeop.CommandCompiler() |
|
387 | self.compile = codeop.CommandCompiler() | |
376 |
|
388 | |||
377 | # User input buffer |
|
389 | # User input buffer | |
378 | self.buffer = [] |
|
390 | self.buffer = [] | |
379 |
|
391 | |||
380 | # Make an empty namespace, which extension writers can rely on both |
|
392 | # Make an empty namespace, which extension writers can rely on both | |
381 | # existing and NEVER being used by ipython itself. This gives them a |
|
393 | # existing and NEVER being used by ipython itself. This gives them a | |
382 | # convenient location for storing additional information and state |
|
394 | # convenient location for storing additional information and state | |
383 | # their extensions may require, without fear of collisions with other |
|
395 | # their extensions may require, without fear of collisions with other | |
384 | # ipython names that may develop later. |
|
396 | # ipython names that may develop later. | |
385 | self.meta = Struct() |
|
397 | self.meta = Struct() | |
386 |
|
398 | |||
387 | # Object variable to store code object waiting execution. This is |
|
399 | # Object variable to store code object waiting execution. This is | |
388 | # used mainly by the multithreaded shells, but it can come in handy in |
|
400 | # used mainly by the multithreaded shells, but it can come in handy in | |
389 | # other situations. No need to use a Queue here, since it's a single |
|
401 | # other situations. No need to use a Queue here, since it's a single | |
390 | # item which gets cleared once run. |
|
402 | # item which gets cleared once run. | |
391 | self.code_to_run = None |
|
403 | self.code_to_run = None | |
392 |
|
404 | |||
393 | # Flag to mark unconditional exit |
|
405 | # Flag to mark unconditional exit | |
394 | self.exit_now = False |
|
406 | self.exit_now = False | |
395 |
|
407 | |||
396 | # Temporary files used for various purposes. Deleted at exit. |
|
408 | # Temporary files used for various purposes. Deleted at exit. | |
397 | self.tempfiles = [] |
|
409 | self.tempfiles = [] | |
398 |
|
410 | |||
399 | # Keep track of readline usage (later set by init_readline) |
|
411 | # Keep track of readline usage (later set by init_readline) | |
400 | self.has_readline = False |
|
412 | self.has_readline = False | |
401 |
|
413 | |||
402 | # keep track of where we started running (mainly for crash post-mortem) |
|
414 | # keep track of where we started running (mainly for crash post-mortem) | |
403 | # This is not being used anywhere currently. |
|
415 | # This is not being used anywhere currently. | |
404 | self.starting_dir = os.getcwd() |
|
416 | self.starting_dir = os.getcwd() | |
405 |
|
417 | |||
406 | # Indentation management |
|
418 | # Indentation management | |
407 | self.indent_current_nsp = 0 |
|
419 | self.indent_current_nsp = 0 | |
408 |
|
420 | |||
409 | def init_term_title(self): |
|
421 | def init_term_title(self): | |
410 | # Enable or disable the terminal title. |
|
422 | # Enable or disable the terminal title. | |
411 | if self.term_title: |
|
423 | if self.term_title: | |
412 | toggle_set_term_title(True) |
|
424 | toggle_set_term_title(True) | |
413 | set_term_title('IPython: ' + abbrev_cwd()) |
|
425 | set_term_title('IPython: ' + abbrev_cwd()) | |
414 | else: |
|
426 | else: | |
415 | toggle_set_term_title(False) |
|
427 | toggle_set_term_title(False) | |
416 |
|
428 | |||
417 | def init_usage(self, usage=None): |
|
429 | def init_usage(self, usage=None): | |
418 | if usage is None: |
|
430 | if usage is None: | |
419 | self.usage = interactive_usage |
|
431 | self.usage = interactive_usage | |
420 | else: |
|
432 | else: | |
421 | self.usage = usage |
|
433 | self.usage = usage | |
422 |
|
434 | |||
423 | def init_banner(self, banner1, banner2): |
|
435 | def init_banner(self, banner1, banner2): | |
424 | if self.c: # regular python doesn't print the banner with -c |
|
436 | if self.c: # regular python doesn't print the banner with -c | |
425 | self.display_banner = False |
|
437 | self.display_banner = False | |
426 | if banner1 is not None: |
|
438 | if banner1 is not None: | |
427 | self.banner1 = banner1 |
|
439 | self.banner1 = banner1 | |
428 | if banner2 is not None: |
|
440 | if banner2 is not None: | |
429 | self.banner2 = banner2 |
|
441 | self.banner2 = banner2 | |
430 | self.compute_banner() |
|
442 | self.compute_banner() | |
431 |
|
443 | |||
432 | def compute_banner(self): |
|
444 | def compute_banner(self): | |
433 | self.banner = self.banner1 + '\n' |
|
445 | self.banner = self.banner1 + '\n' | |
434 | if self.profile: |
|
446 | if self.profile: | |
435 | self.banner += '\nIPython profile: %s\n' % self.profile |
|
447 | self.banner += '\nIPython profile: %s\n' % self.profile | |
436 | if self.banner2: |
|
448 | if self.banner2: | |
437 | self.banner += '\n' + self.banner2 + '\n' |
|
449 | self.banner += '\n' + self.banner2 + '\n' | |
438 |
|
450 | |||
439 | def init_embedded(self, embedded): |
|
451 | def init_embedded(self, embedded): | |
440 | # We need to know whether the instance is meant for embedding, since |
|
452 | # We need to know whether the instance is meant for embedding, since | |
441 | # global/local namespaces need to be handled differently in that case |
|
453 | # global/local namespaces need to be handled differently in that case | |
442 | self.embedded = embedded |
|
454 | self.embedded = embedded | |
443 | if embedded: |
|
455 | if embedded: | |
444 | # Control variable so users can, from within the embedded instance, |
|
456 | # Control variable so users can, from within the embedded instance, | |
445 | # permanently deactivate it. |
|
457 | # permanently deactivate it. | |
446 | self.embedded_active = True |
|
458 | self.embedded_active = True | |
447 |
|
459 | |||
448 | def init_create_namespaces(self, user_ns=None, user_global_ns=None): |
|
460 | def init_create_namespaces(self, user_ns=None, user_global_ns=None): | |
449 | # Create the namespace where the user will operate. user_ns is |
|
461 | # Create the namespace where the user will operate. user_ns is | |
450 | # normally the only one used, and it is passed to the exec calls as |
|
462 | # normally the only one used, and it is passed to the exec calls as | |
451 | # the locals argument. But we do carry a user_global_ns namespace |
|
463 | # the locals argument. But we do carry a user_global_ns namespace | |
452 | # given as the exec 'globals' argument, This is useful in embedding |
|
464 | # given as the exec 'globals' argument, This is useful in embedding | |
453 | # situations where the ipython shell opens in a context where the |
|
465 | # situations where the ipython shell opens in a context where the | |
454 | # distinction between locals and globals is meaningful. For |
|
466 | # distinction between locals and globals is meaningful. For | |
455 | # non-embedded contexts, it is just the same object as the user_ns dict. |
|
467 | # non-embedded contexts, it is just the same object as the user_ns dict. | |
456 |
|
468 | |||
457 | # FIXME. For some strange reason, __builtins__ is showing up at user |
|
469 | # FIXME. For some strange reason, __builtins__ is showing up at user | |
458 | # level as a dict instead of a module. This is a manual fix, but I |
|
470 | # level as a dict instead of a module. This is a manual fix, but I | |
459 | # should really track down where the problem is coming from. Alex |
|
471 | # should really track down where the problem is coming from. Alex | |
460 | # Schmolck reported this problem first. |
|
472 | # Schmolck reported this problem first. | |
461 |
|
473 | |||
462 | # A useful post by Alex Martelli on this topic: |
|
474 | # A useful post by Alex Martelli on this topic: | |
463 | # Re: inconsistent value from __builtins__ |
|
475 | # Re: inconsistent value from __builtins__ | |
464 | # Von: Alex Martelli <aleaxit@yahoo.com> |
|
476 | # Von: Alex Martelli <aleaxit@yahoo.com> | |
465 | # Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends |
|
477 | # Datum: Freitag 01 Oktober 2004 04:45:34 nachmittags/abends | |
466 | # Gruppen: comp.lang.python |
|
478 | # Gruppen: comp.lang.python | |
467 |
|
479 | |||
468 | # Michael Hohn <hohn@hooknose.lbl.gov> wrote: |
|
480 | # Michael Hohn <hohn@hooknose.lbl.gov> wrote: | |
469 | # > >>> print type(builtin_check.get_global_binding('__builtins__')) |
|
481 | # > >>> print type(builtin_check.get_global_binding('__builtins__')) | |
470 | # > <type 'dict'> |
|
482 | # > <type 'dict'> | |
471 | # > >>> print type(__builtins__) |
|
483 | # > >>> print type(__builtins__) | |
472 | # > <type 'module'> |
|
484 | # > <type 'module'> | |
473 | # > Is this difference in return value intentional? |
|
485 | # > Is this difference in return value intentional? | |
474 |
|
486 | |||
475 | # Well, it's documented that '__builtins__' can be either a dictionary |
|
487 | # Well, it's documented that '__builtins__' can be either a dictionary | |
476 | # or a module, and it's been that way for a long time. Whether it's |
|
488 | # or a module, and it's been that way for a long time. Whether it's | |
477 | # intentional (or sensible), I don't know. In any case, the idea is |
|
489 | # intentional (or sensible), I don't know. In any case, the idea is | |
478 | # that if you need to access the built-in namespace directly, you |
|
490 | # that if you need to access the built-in namespace directly, you | |
479 | # should start with "import __builtin__" (note, no 's') which will |
|
491 | # should start with "import __builtin__" (note, no 's') which will | |
480 | # definitely give you a module. Yeah, it's somewhat confusing:-(. |
|
492 | # definitely give you a module. Yeah, it's somewhat confusing:-(. | |
481 |
|
493 | |||
482 | # These routines return properly built dicts as needed by the rest of |
|
494 | # These routines return properly built dicts as needed by the rest of | |
483 | # the code, and can also be used by extension writers to generate |
|
495 | # the code, and can also be used by extension writers to generate | |
484 | # properly initialized namespaces. |
|
496 | # properly initialized namespaces. | |
485 | user_ns, user_global_ns = self.make_user_namespaces(user_ns, |
|
497 | user_ns, user_global_ns = self.make_user_namespaces(user_ns, | |
486 | user_global_ns) |
|
498 | user_global_ns) | |
487 |
|
499 | |||
488 | # Assign namespaces |
|
500 | # Assign namespaces | |
489 | # This is the namespace where all normal user variables live |
|
501 | # This is the namespace where all normal user variables live | |
490 | self.user_ns = user_ns |
|
502 | self.user_ns = user_ns | |
491 | self.user_global_ns = user_global_ns |
|
503 | self.user_global_ns = user_global_ns | |
492 |
|
504 | |||
493 | # An auxiliary namespace that checks what parts of the user_ns were |
|
505 | # An auxiliary namespace that checks what parts of the user_ns were | |
494 | # loaded at startup, so we can list later only variables defined in |
|
506 | # loaded at startup, so we can list later only variables defined in | |
495 | # actual interactive use. Since it is always a subset of user_ns, it |
|
507 | # actual interactive use. Since it is always a subset of user_ns, it | |
496 | # doesn't need to be seaparately tracked in the ns_table |
|
508 | # doesn't need to be seaparately tracked in the ns_table | |
497 | self.user_config_ns = {} |
|
509 | self.user_config_ns = {} | |
498 |
|
510 | |||
499 | # A namespace to keep track of internal data structures to prevent |
|
511 | # A namespace to keep track of internal data structures to prevent | |
500 | # them from cluttering user-visible stuff. Will be updated later |
|
512 | # them from cluttering user-visible stuff. Will be updated later | |
501 | self.internal_ns = {} |
|
513 | self.internal_ns = {} | |
502 |
|
514 | |||
503 | # Namespace of system aliases. Each entry in the alias |
|
515 | # Namespace of system aliases. Each entry in the alias | |
504 | # table must be a 2-tuple of the form (N,name), where N is the number |
|
516 | # table must be a 2-tuple of the form (N,name), where N is the number | |
505 | # of positional arguments of the alias. |
|
517 | # of positional arguments of the alias. | |
506 | self.alias_table = {} |
|
518 | self.alias_table = {} | |
507 |
|
519 | |||
508 | # Now that FakeModule produces a real module, we've run into a nasty |
|
520 | # Now that FakeModule produces a real module, we've run into a nasty | |
509 | # problem: after script execution (via %run), the module where the user |
|
521 | # problem: after script execution (via %run), the module where the user | |
510 | # code ran is deleted. Now that this object is a true module (needed |
|
522 | # code ran is deleted. Now that this object is a true module (needed | |
511 | # so docetst and other tools work correctly), the Python module |
|
523 | # so docetst and other tools work correctly), the Python module | |
512 | # teardown mechanism runs over it, and sets to None every variable |
|
524 | # teardown mechanism runs over it, and sets to None every variable | |
513 | # present in that module. Top-level references to objects from the |
|
525 | # present in that module. Top-level references to objects from the | |
514 | # script survive, because the user_ns is updated with them. However, |
|
526 | # script survive, because the user_ns is updated with them. However, | |
515 | # calling functions defined in the script that use other things from |
|
527 | # calling functions defined in the script that use other things from | |
516 | # the script will fail, because the function's closure had references |
|
528 | # the script will fail, because the function's closure had references | |
517 | # to the original objects, which are now all None. So we must protect |
|
529 | # to the original objects, which are now all None. So we must protect | |
518 | # these modules from deletion by keeping a cache. |
|
530 | # these modules from deletion by keeping a cache. | |
519 | # |
|
531 | # | |
520 | # To avoid keeping stale modules around (we only need the one from the |
|
532 | # To avoid keeping stale modules around (we only need the one from the | |
521 | # last run), we use a dict keyed with the full path to the script, so |
|
533 | # last run), we use a dict keyed with the full path to the script, so | |
522 | # only the last version of the module is held in the cache. Note, |
|
534 | # only the last version of the module is held in the cache. Note, | |
523 | # however, that we must cache the module *namespace contents* (their |
|
535 | # however, that we must cache the module *namespace contents* (their | |
524 | # __dict__). Because if we try to cache the actual modules, old ones |
|
536 | # __dict__). Because if we try to cache the actual modules, old ones | |
525 | # (uncached) could be destroyed while still holding references (such as |
|
537 | # (uncached) could be destroyed while still holding references (such as | |
526 | # those held by GUI objects that tend to be long-lived)> |
|
538 | # those held by GUI objects that tend to be long-lived)> | |
527 | # |
|
539 | # | |
528 | # The %reset command will flush this cache. See the cache_main_mod() |
|
540 | # The %reset command will flush this cache. See the cache_main_mod() | |
529 | # and clear_main_mod_cache() methods for details on use. |
|
541 | # and clear_main_mod_cache() methods for details on use. | |
530 |
|
542 | |||
531 | # This is the cache used for 'main' namespaces |
|
543 | # This is the cache used for 'main' namespaces | |
532 | self._main_ns_cache = {} |
|
544 | self._main_ns_cache = {} | |
533 | # And this is the single instance of FakeModule whose __dict__ we keep |
|
545 | # And this is the single instance of FakeModule whose __dict__ we keep | |
534 | # copying and clearing for reuse on each %run |
|
546 | # copying and clearing for reuse on each %run | |
535 | self._user_main_module = FakeModule() |
|
547 | self._user_main_module = FakeModule() | |
536 |
|
548 | |||
537 | # A table holding all the namespaces IPython deals with, so that |
|
549 | # A table holding all the namespaces IPython deals with, so that | |
538 | # introspection facilities can search easily. |
|
550 | # introspection facilities can search easily. | |
539 | self.ns_table = {'user':user_ns, |
|
551 | self.ns_table = {'user':user_ns, | |
540 | 'user_global':user_global_ns, |
|
552 | 'user_global':user_global_ns, | |
541 | 'alias':self.alias_table, |
|
553 | 'alias':self.alias_table, | |
542 | 'internal':self.internal_ns, |
|
554 | 'internal':self.internal_ns, | |
543 | 'builtin':__builtin__.__dict__ |
|
555 | 'builtin':__builtin__.__dict__ | |
544 | } |
|
556 | } | |
545 |
|
557 | |||
546 | # Similarly, track all namespaces where references can be held and that |
|
558 | # Similarly, track all namespaces where references can be held and that | |
547 | # we can safely clear (so it can NOT include builtin). This one can be |
|
559 | # we can safely clear (so it can NOT include builtin). This one can be | |
548 | # a simple list. |
|
560 | # a simple list. | |
549 | self.ns_refs_table = [ user_ns, user_global_ns, self.user_config_ns, |
|
561 | self.ns_refs_table = [ user_ns, user_global_ns, self.user_config_ns, | |
550 | self.alias_table, self.internal_ns, |
|
562 | self.alias_table, self.internal_ns, | |
551 | self._main_ns_cache ] |
|
563 | self._main_ns_cache ] | |
552 |
|
564 | |||
553 | # We need to insert into sys.modules something that looks like a |
|
565 | # We need to insert into sys.modules something that looks like a | |
554 | # module but which accesses the IPython namespace, for shelve and |
|
566 | # module but which accesses the IPython namespace, for shelve and | |
555 | # pickle to work interactively. Normally they rely on getting |
|
567 | # pickle to work interactively. Normally they rely on getting | |
556 | # everything out of __main__, but for embedding purposes each IPython |
|
568 | # everything out of __main__, but for embedding purposes each IPython | |
557 | # instance has its own private namespace, so we can't go shoving |
|
569 | # instance has its own private namespace, so we can't go shoving | |
558 | # everything into __main__. |
|
570 | # everything into __main__. | |
559 |
|
571 | |||
560 | # note, however, that we should only do this for non-embedded |
|
572 | # note, however, that we should only do this for non-embedded | |
561 | # ipythons, which really mimic the __main__.__dict__ with their own |
|
573 | # ipythons, which really mimic the __main__.__dict__ with their own | |
562 | # namespace. Embedded instances, on the other hand, should not do |
|
574 | # namespace. Embedded instances, on the other hand, should not do | |
563 | # this because they need to manage the user local/global namespaces |
|
575 | # this because they need to manage the user local/global namespaces | |
564 | # only, but they live within a 'normal' __main__ (meaning, they |
|
576 | # only, but they live within a 'normal' __main__ (meaning, they | |
565 | # shouldn't overtake the execution environment of the script they're |
|
577 | # shouldn't overtake the execution environment of the script they're | |
566 | # embedded in). |
|
578 | # embedded in). | |
567 |
|
579 | |||
568 | if not self.embedded: |
|
580 | if not self.embedded: | |
569 | try: |
|
581 | try: | |
570 | main_name = self.user_ns['__name__'] |
|
582 | main_name = self.user_ns['__name__'] | |
571 | except KeyError: |
|
583 | except KeyError: | |
572 | raise KeyError,'user_ns dictionary MUST have a "__name__" key' |
|
584 | raise KeyError,'user_ns dictionary MUST have a "__name__" key' | |
573 | else: |
|
585 | else: | |
574 | sys.modules[main_name] = FakeModule(self.user_ns) |
|
586 | sys.modules[main_name] = FakeModule(self.user_ns) | |
575 |
|
587 | |||
576 | def make_user_namespaces(self, user_ns=None, user_global_ns=None): |
|
588 | def make_user_namespaces(self, user_ns=None, user_global_ns=None): | |
577 | """Return a valid local and global user interactive namespaces. |
|
589 | """Return a valid local and global user interactive namespaces. | |
578 |
|
590 | |||
579 | This builds a dict with the minimal information needed to operate as a |
|
591 | This builds a dict with the minimal information needed to operate as a | |
580 | valid IPython user namespace, which you can pass to the various |
|
592 | valid IPython user namespace, which you can pass to the various | |
581 | embedding classes in ipython. The default implementation returns the |
|
593 | embedding classes in ipython. The default implementation returns the | |
582 | same dict for both the locals and the globals to allow functions to |
|
594 | same dict for both the locals and the globals to allow functions to | |
583 | refer to variables in the namespace. Customized implementations can |
|
595 | refer to variables in the namespace. Customized implementations can | |
584 | return different dicts. The locals dictionary can actually be anything |
|
596 | return different dicts. The locals dictionary can actually be anything | |
585 | following the basic mapping protocol of a dict, but the globals dict |
|
597 | following the basic mapping protocol of a dict, but the globals dict | |
586 | must be a true dict, not even a subclass. It is recommended that any |
|
598 | must be a true dict, not even a subclass. It is recommended that any | |
587 | custom object for the locals namespace synchronize with the globals |
|
599 | custom object for the locals namespace synchronize with the globals | |
588 | dict somehow. |
|
600 | dict somehow. | |
589 |
|
601 | |||
590 | Raises TypeError if the provided globals namespace is not a true dict. |
|
602 | Raises TypeError if the provided globals namespace is not a true dict. | |
591 |
|
603 | |||
592 | :Parameters: |
|
604 | :Parameters: | |
593 | user_ns : dict-like, optional |
|
605 | user_ns : dict-like, optional | |
594 | The current user namespace. The items in this namespace should |
|
606 | The current user namespace. The items in this namespace should | |
595 | be included in the output. If None, an appropriate blank |
|
607 | be included in the output. If None, an appropriate blank | |
596 | namespace should be created. |
|
608 | namespace should be created. | |
597 | user_global_ns : dict, optional |
|
609 | user_global_ns : dict, optional | |
598 | The current user global namespace. The items in this namespace |
|
610 | The current user global namespace. The items in this namespace | |
599 | should be included in the output. If None, an appropriate |
|
611 | should be included in the output. If None, an appropriate | |
600 | blank namespace should be created. |
|
612 | blank namespace should be created. | |
601 |
|
613 | |||
602 | :Returns: |
|
614 | :Returns: | |
603 | A tuple pair of dictionary-like object to be used as the local namespace |
|
615 | A tuple pair of dictionary-like object to be used as the local namespace | |
604 | of the interpreter and a dict to be used as the global namespace. |
|
616 | of the interpreter and a dict to be used as the global namespace. | |
605 | """ |
|
617 | """ | |
606 |
|
618 | |||
607 | if user_ns is None: |
|
619 | if user_ns is None: | |
608 | # Set __name__ to __main__ to better match the behavior of the |
|
620 | # Set __name__ to __main__ to better match the behavior of the | |
609 | # normal interpreter. |
|
621 | # normal interpreter. | |
610 | user_ns = {'__name__' :'__main__', |
|
622 | user_ns = {'__name__' :'__main__', | |
611 | '__builtins__' : __builtin__, |
|
623 | '__builtins__' : __builtin__, | |
612 | } |
|
624 | } | |
613 | else: |
|
625 | else: | |
614 | user_ns.setdefault('__name__','__main__') |
|
626 | user_ns.setdefault('__name__','__main__') | |
615 | user_ns.setdefault('__builtins__',__builtin__) |
|
627 | user_ns.setdefault('__builtins__',__builtin__) | |
616 |
|
628 | |||
617 | if user_global_ns is None: |
|
629 | if user_global_ns is None: | |
618 | user_global_ns = user_ns |
|
630 | user_global_ns = user_ns | |
619 | if type(user_global_ns) is not dict: |
|
631 | if type(user_global_ns) is not dict: | |
620 | raise TypeError("user_global_ns must be a true dict; got %r" |
|
632 | raise TypeError("user_global_ns must be a true dict; got %r" | |
621 | % type(user_global_ns)) |
|
633 | % type(user_global_ns)) | |
622 |
|
634 | |||
623 | return user_ns, user_global_ns |
|
635 | return user_ns, user_global_ns | |
624 |
|
636 | |||
625 | def init_history(self): |
|
637 | def init_history(self): | |
626 | # List of input with multi-line handling. |
|
638 | # List of input with multi-line handling. | |
627 | self.input_hist = InputList() |
|
639 | self.input_hist = InputList() | |
628 | # This one will hold the 'raw' input history, without any |
|
640 | # This one will hold the 'raw' input history, without any | |
629 | # pre-processing. This will allow users to retrieve the input just as |
|
641 | # pre-processing. This will allow users to retrieve the input just as | |
630 | # it was exactly typed in by the user, with %hist -r. |
|
642 | # it was exactly typed in by the user, with %hist -r. | |
631 | self.input_hist_raw = InputList() |
|
643 | self.input_hist_raw = InputList() | |
632 |
|
644 | |||
633 | # list of visited directories |
|
645 | # list of visited directories | |
634 | try: |
|
646 | try: | |
635 | self.dir_hist = [os.getcwd()] |
|
647 | self.dir_hist = [os.getcwd()] | |
636 | except OSError: |
|
648 | except OSError: | |
637 | self.dir_hist = [] |
|
649 | self.dir_hist = [] | |
638 |
|
650 | |||
639 | # dict of output history |
|
651 | # dict of output history | |
640 | self.output_hist = {} |
|
652 | self.output_hist = {} | |
641 |
|
653 | |||
642 | # Now the history file |
|
654 | # Now the history file | |
643 | try: |
|
655 | try: | |
644 | histfname = 'history-%s' % self.profile |
|
656 | histfname = 'history-%s' % self.profile | |
645 | except AttributeError: |
|
657 | except AttributeError: | |
646 | histfname = 'history' |
|
658 | histfname = 'history' | |
647 | self.histfile = os.path.join(self.config.IPYTHONDIR, histfname) |
|
659 | self.histfile = os.path.join(self.config.IPYTHONDIR, histfname) | |
648 |
|
660 | |||
649 | # Fill the history zero entry, user counter starts at 1 |
|
661 | # Fill the history zero entry, user counter starts at 1 | |
650 | self.input_hist.append('\n') |
|
662 | self.input_hist.append('\n') | |
651 | self.input_hist_raw.append('\n') |
|
663 | self.input_hist_raw.append('\n') | |
652 |
|
664 | |||
653 | def init_encoding(self): |
|
665 | def init_encoding(self): | |
654 | # Get system encoding at startup time. Certain terminals (like Emacs |
|
666 | # Get system encoding at startup time. Certain terminals (like Emacs | |
655 | # under Win32 have it set to None, and we need to have a known valid |
|
667 | # under Win32 have it set to None, and we need to have a known valid | |
656 | # encoding to use in the raw_input() method |
|
668 | # encoding to use in the raw_input() method | |
657 | try: |
|
669 | try: | |
658 | self.stdin_encoding = sys.stdin.encoding or 'ascii' |
|
670 | self.stdin_encoding = sys.stdin.encoding or 'ascii' | |
659 | except AttributeError: |
|
671 | except AttributeError: | |
660 | self.stdin_encoding = 'ascii' |
|
672 | self.stdin_encoding = 'ascii' | |
661 |
|
673 | |||
662 | def init_handlers(self): |
|
674 | def init_handlers(self): | |
663 | # escapes for automatic behavior on the command line |
|
675 | # escapes for automatic behavior on the command line | |
664 | self.ESC_SHELL = '!' |
|
676 | self.ESC_SHELL = '!' | |
665 | self.ESC_SH_CAP = '!!' |
|
677 | self.ESC_SH_CAP = '!!' | |
666 | self.ESC_HELP = '?' |
|
678 | self.ESC_HELP = '?' | |
667 | self.ESC_MAGIC = '%' |
|
679 | self.ESC_MAGIC = '%' | |
668 | self.ESC_QUOTE = ',' |
|
680 | self.ESC_QUOTE = ',' | |
669 | self.ESC_QUOTE2 = ';' |
|
681 | self.ESC_QUOTE2 = ';' | |
670 | self.ESC_PAREN = '/' |
|
682 | self.ESC_PAREN = '/' | |
671 |
|
683 | |||
672 | # And their associated handlers |
|
684 | # And their associated handlers | |
673 | self.esc_handlers = {self.ESC_PAREN : self.handle_auto, |
|
685 | self.esc_handlers = {self.ESC_PAREN : self.handle_auto, | |
674 | self.ESC_QUOTE : self.handle_auto, |
|
686 | self.ESC_QUOTE : self.handle_auto, | |
675 | self.ESC_QUOTE2 : self.handle_auto, |
|
687 | self.ESC_QUOTE2 : self.handle_auto, | |
676 | self.ESC_MAGIC : self.handle_magic, |
|
688 | self.ESC_MAGIC : self.handle_magic, | |
677 | self.ESC_HELP : self.handle_help, |
|
689 | self.ESC_HELP : self.handle_help, | |
678 | self.ESC_SHELL : self.handle_shell_escape, |
|
690 | self.ESC_SHELL : self.handle_shell_escape, | |
679 | self.ESC_SH_CAP : self.handle_shell_escape, |
|
691 | self.ESC_SH_CAP : self.handle_shell_escape, | |
680 | } |
|
692 | } | |
681 |
|
693 | |||
682 | def init_syntax_highlighting(self): |
|
694 | def init_syntax_highlighting(self): | |
683 | # Python source parser/formatter for syntax highlighting |
|
695 | # Python source parser/formatter for syntax highlighting | |
684 | pyformat = PyColorize.Parser().format |
|
696 | pyformat = PyColorize.Parser().format | |
685 | self.pycolorize = lambda src: pyformat(src,'str',self.colors) |
|
697 | self.pycolorize = lambda src: pyformat(src,'str',self.colors) | |
686 |
|
698 | |||
687 | def init_hooks(self): |
|
699 | def init_hooks(self): | |
688 | # hooks holds pointers used for user-side customizations |
|
700 | # hooks holds pointers used for user-side customizations | |
689 | self.hooks = Struct() |
|
701 | self.hooks = Struct() | |
690 |
|
702 | |||
691 | self.strdispatchers = {} |
|
703 | self.strdispatchers = {} | |
692 |
|
704 | |||
693 | # Set all default hooks, defined in the IPython.hooks module. |
|
705 | # Set all default hooks, defined in the IPython.hooks module. | |
694 | import IPython.core.hooks |
|
706 | import IPython.core.hooks | |
695 | hooks = IPython.core.hooks |
|
707 | hooks = IPython.core.hooks | |
696 | for hook_name in hooks.__all__: |
|
708 | for hook_name in hooks.__all__: | |
697 | # default hooks have priority 100, i.e. low; user hooks should have |
|
709 | # default hooks have priority 100, i.e. low; user hooks should have | |
698 | # 0-100 priority |
|
710 | # 0-100 priority | |
699 | self.set_hook(hook_name,getattr(hooks,hook_name), 100) |
|
711 | self.set_hook(hook_name,getattr(hooks,hook_name), 100) | |
700 |
|
712 | |||
701 | def init_pushd_popd_magic(self): |
|
713 | def init_pushd_popd_magic(self): | |
702 | # for pushd/popd management |
|
714 | # for pushd/popd management | |
703 | try: |
|
715 | try: | |
704 | self.home_dir = get_home_dir() |
|
716 | self.home_dir = get_home_dir() | |
705 | except HomeDirError, msg: |
|
717 | except HomeDirError, msg: | |
706 | fatal(msg) |
|
718 | fatal(msg) | |
707 |
|
719 | |||
708 | self.dir_stack = [] |
|
720 | self.dir_stack = [] | |
709 |
|
721 | |||
710 | def init_traceback_handlers(self, custom_exceptions): |
|
722 | def init_traceback_handlers(self, custom_exceptions): | |
711 | # Syntax error handler. |
|
723 | # Syntax error handler. | |
712 | self.SyntaxTB = SyntaxTB(color_scheme='NoColor') |
|
724 | self.SyntaxTB = SyntaxTB(color_scheme='NoColor') | |
713 |
|
725 | |||
714 | # The interactive one is initialized with an offset, meaning we always |
|
726 | # The interactive one is initialized with an offset, meaning we always | |
715 | # want to remove the topmost item in the traceback, which is our own |
|
727 | # want to remove the topmost item in the traceback, which is our own | |
716 | # internal code. Valid modes: ['Plain','Context','Verbose'] |
|
728 | # internal code. Valid modes: ['Plain','Context','Verbose'] | |
717 | self.InteractiveTB = ultratb.AutoFormattedTB(mode = 'Plain', |
|
729 | self.InteractiveTB = ultratb.AutoFormattedTB(mode = 'Plain', | |
718 | color_scheme='NoColor', |
|
730 | color_scheme='NoColor', | |
719 | tb_offset = 1) |
|
731 | tb_offset = 1) | |
720 |
|
732 | |||
721 | # IPython itself shouldn't crash. This will produce a detailed |
|
733 | # IPython itself shouldn't crash. This will produce a detailed | |
722 | # post-mortem if it does. But we only install the crash handler for |
|
734 | # post-mortem if it does. But we only install the crash handler for | |
723 | # non-threaded shells, the threaded ones use a normal verbose reporter |
|
735 | # non-threaded shells, the threaded ones use a normal verbose reporter | |
724 | # and lose the crash handler. This is because exceptions in the main |
|
736 | # and lose the crash handler. This is because exceptions in the main | |
725 | # thread (such as in GUI code) propagate directly to sys.excepthook, |
|
737 | # thread (such as in GUI code) propagate directly to sys.excepthook, | |
726 | # and there's no point in printing crash dumps for every user exception. |
|
738 | # and there's no point in printing crash dumps for every user exception. | |
727 | if self.isthreaded: |
|
739 | if self.isthreaded: | |
728 | ipCrashHandler = ultratb.FormattedTB() |
|
740 | ipCrashHandler = ultratb.FormattedTB() | |
729 | else: |
|
741 | else: | |
730 | from IPython.core import crashhandler |
|
742 | from IPython.core import crashhandler | |
731 | ipCrashHandler = crashhandler.IPythonCrashHandler(self) |
|
743 | ipCrashHandler = crashhandler.IPythonCrashHandler(self) | |
732 | self.set_crash_handler(ipCrashHandler) |
|
744 | self.set_crash_handler(ipCrashHandler) | |
733 |
|
745 | |||
734 | # and add any custom exception handlers the user may have specified |
|
746 | # and add any custom exception handlers the user may have specified | |
735 | self.set_custom_exc(*custom_exceptions) |
|
747 | self.set_custom_exc(*custom_exceptions) | |
736 |
|
748 | |||
737 | def init_logger(self): |
|
749 | def init_logger(self): | |
738 | self.logger = Logger(self, logfname='ipython_log.py', logmode='rotate') |
|
750 | self.logger = Logger(self, logfname='ipython_log.py', logmode='rotate') | |
739 | # local shortcut, this is used a LOT |
|
751 | # local shortcut, this is used a LOT | |
740 | self.log = self.logger.log |
|
752 | self.log = self.logger.log | |
741 | # template for logfile headers. It gets resolved at runtime by the |
|
753 | # template for logfile headers. It gets resolved at runtime by the | |
742 | # logstart method. |
|
754 | # logstart method. | |
743 | self.loghead_tpl = \ |
|
755 | self.loghead_tpl = \ | |
744 | """#log# Automatic Logger file. *** THIS MUST BE THE FIRST LINE *** |
|
756 | """#log# Automatic Logger file. *** THIS MUST BE THE FIRST LINE *** | |
745 | #log# DO NOT CHANGE THIS LINE OR THE TWO BELOW |
|
757 | #log# DO NOT CHANGE THIS LINE OR THE TWO BELOW | |
746 | #log# opts = %s |
|
758 | #log# opts = %s | |
747 | #log# args = %s |
|
759 | #log# args = %s | |
748 | #log# It is safe to make manual edits below here. |
|
760 | #log# It is safe to make manual edits below here. | |
749 | #log#----------------------------------------------------------------------- |
|
761 | #log#----------------------------------------------------------------------- | |
750 | """ |
|
762 | """ | |
751 |
|
763 | |||
752 | def init_logstart(self): |
|
764 | def init_logstart(self): | |
753 | if self.logplay: |
|
765 | if self.logplay: | |
754 | self.magic_logstart(self.logplay + ' append') |
|
766 | self.magic_logstart(self.logplay + ' append') | |
755 | elif self.logfile: |
|
767 | elif self.logfile: | |
756 | self.magic_logstart(self.logfile) |
|
768 | self.magic_logstart(self.logfile) | |
757 | elif self.logstart: |
|
769 | elif self.logstart: | |
758 | self.magic_logstart() |
|
770 | self.magic_logstart() | |
759 |
|
771 | |||
760 | def init_aliases(self): |
|
772 | def init_aliases(self): | |
761 | # dict of things NOT to alias (keywords, builtins and some magics) |
|
773 | # dict of things NOT to alias (keywords, builtins and some magics) | |
762 | no_alias = {} |
|
774 | no_alias = {} | |
763 | no_alias_magics = ['cd','popd','pushd','dhist','alias','unalias'] |
|
775 | no_alias_magics = ['cd','popd','pushd','dhist','alias','unalias'] | |
764 | for key in keyword.kwlist + no_alias_magics: |
|
776 | for key in keyword.kwlist + no_alias_magics: | |
765 | no_alias[key] = 1 |
|
777 | no_alias[key] = 1 | |
766 | no_alias.update(__builtin__.__dict__) |
|
778 | no_alias.update(__builtin__.__dict__) | |
767 | self.no_alias = no_alias |
|
779 | self.no_alias = no_alias | |
768 |
|
780 | |||
769 | # Make some aliases automatically |
|
781 | # Make some aliases automatically | |
770 | # Prepare list of shell aliases to auto-define |
|
782 | # Prepare list of shell aliases to auto-define | |
771 | if os.name == 'posix': |
|
783 | if os.name == 'posix': | |
772 | auto_alias = ('mkdir mkdir', 'rmdir rmdir', |
|
784 | auto_alias = ('mkdir mkdir', 'rmdir rmdir', | |
773 | 'mv mv -i','rm rm -i','cp cp -i', |
|
785 | 'mv mv -i','rm rm -i','cp cp -i', | |
774 | 'cat cat','less less','clear clear', |
|
786 | 'cat cat','less less','clear clear', | |
775 | # a better ls |
|
787 | # a better ls | |
776 | 'ls ls -F', |
|
788 | 'ls ls -F', | |
777 | # long ls |
|
789 | # long ls | |
778 | 'll ls -lF') |
|
790 | 'll ls -lF') | |
779 | # Extra ls aliases with color, which need special treatment on BSD |
|
791 | # Extra ls aliases with color, which need special treatment on BSD | |
780 | # variants |
|
792 | # variants | |
781 | ls_extra = ( # color ls |
|
793 | ls_extra = ( # color ls | |
782 | 'lc ls -F -o --color', |
|
794 | 'lc ls -F -o --color', | |
783 | # ls normal files only |
|
795 | # ls normal files only | |
784 | 'lf ls -F -o --color %l | grep ^-', |
|
796 | 'lf ls -F -o --color %l | grep ^-', | |
785 | # ls symbolic links |
|
797 | # ls symbolic links | |
786 | 'lk ls -F -o --color %l | grep ^l', |
|
798 | 'lk ls -F -o --color %l | grep ^l', | |
787 | # directories or links to directories, |
|
799 | # directories or links to directories, | |
788 | 'ldir ls -F -o --color %l | grep /$', |
|
800 | 'ldir ls -F -o --color %l | grep /$', | |
789 | # things which are executable |
|
801 | # things which are executable | |
790 | 'lx ls -F -o --color %l | grep ^-..x', |
|
802 | 'lx ls -F -o --color %l | grep ^-..x', | |
791 | ) |
|
803 | ) | |
792 | # The BSDs don't ship GNU ls, so they don't understand the |
|
804 | # The BSDs don't ship GNU ls, so they don't understand the | |
793 | # --color switch out of the box |
|
805 | # --color switch out of the box | |
794 | if 'bsd' in sys.platform: |
|
806 | if 'bsd' in sys.platform: | |
795 | ls_extra = ( # ls normal files only |
|
807 | ls_extra = ( # ls normal files only | |
796 | 'lf ls -lF | grep ^-', |
|
808 | 'lf ls -lF | grep ^-', | |
797 | # ls symbolic links |
|
809 | # ls symbolic links | |
798 | 'lk ls -lF | grep ^l', |
|
810 | 'lk ls -lF | grep ^l', | |
799 | # directories or links to directories, |
|
811 | # directories or links to directories, | |
800 | 'ldir ls -lF | grep /$', |
|
812 | 'ldir ls -lF | grep /$', | |
801 | # things which are executable |
|
813 | # things which are executable | |
802 | 'lx ls -lF | grep ^-..x', |
|
814 | 'lx ls -lF | grep ^-..x', | |
803 | ) |
|
815 | ) | |
804 | auto_alias = auto_alias + ls_extra |
|
816 | auto_alias = auto_alias + ls_extra | |
805 | elif os.name in ['nt','dos']: |
|
817 | elif os.name in ['nt','dos']: | |
806 | auto_alias = ('ls dir /on', |
|
818 | auto_alias = ('ls dir /on', | |
807 | 'ddir dir /ad /on', 'ldir dir /ad /on', |
|
819 | 'ddir dir /ad /on', 'ldir dir /ad /on', | |
808 | 'mkdir mkdir','rmdir rmdir','echo echo', |
|
820 | 'mkdir mkdir','rmdir rmdir','echo echo', | |
809 | 'ren ren','cls cls','copy copy') |
|
821 | 'ren ren','cls cls','copy copy') | |
810 | else: |
|
822 | else: | |
811 | auto_alias = () |
|
823 | auto_alias = () | |
812 | self.auto_alias = [s.split(None,1) for s in auto_alias] |
|
824 | self.auto_alias = [s.split(None,1) for s in auto_alias] | |
813 |
|
825 | |||
814 | # Load default aliases |
|
826 | # Load default aliases | |
815 | for alias, cmd in self.auto_alias: |
|
827 | for alias, cmd in self.auto_alias: | |
816 | self.define_alias(alias,cmd) |
|
828 | self.define_alias(alias,cmd) | |
817 |
|
829 | |||
818 | # Load user aliases |
|
830 | # Load user aliases | |
819 | for alias in self.alias: |
|
831 | for alias in self.alias: | |
820 | self.magic_alias(alias) |
|
832 | self.magic_alias(alias) | |
821 |
|
833 | |||
822 | def init_builtins(self): |
|
834 | def init_builtins(self): | |
823 | # track which builtins we add, so we can clean up later |
|
835 | # track which builtins we add, so we can clean up later | |
824 | self.builtins_added = {} |
|
836 | self.builtins_added = {} | |
825 | # This method will add the necessary builtins for operation, but |
|
837 | # This method will add the necessary builtins for operation, but | |
826 | # tracking what it did via the builtins_added dict. |
|
838 | # tracking what it did via the builtins_added dict. | |
827 |
|
839 | |||
828 | #TODO: remove this, redundant. I don't understand why this is |
|
840 | #TODO: remove this, redundant. I don't understand why this is | |
829 | # redundant? |
|
841 | # redundant? | |
830 | self.add_builtins() |
|
842 | self.add_builtins() | |
831 |
|
843 | |||
832 | def init_shadow_hist(self): |
|
844 | def init_shadow_hist(self): | |
833 | try: |
|
845 | try: | |
834 | self.db = pickleshare.PickleShareDB(self.config.IPYTHONDIR + "/db") |
|
846 | self.db = pickleshare.PickleShareDB(self.config.IPYTHONDIR + "/db") | |
835 | except exceptions.UnicodeDecodeError: |
|
847 | except exceptions.UnicodeDecodeError: | |
836 | print "Your ipythondir can't be decoded to unicode!" |
|
848 | print "Your ipythondir can't be decoded to unicode!" | |
837 | print "Please set HOME environment variable to something that" |
|
849 | print "Please set HOME environment variable to something that" | |
838 | print r"only has ASCII characters, e.g. c:\home" |
|
850 | print r"only has ASCII characters, e.g. c:\home" | |
839 | print "Now it is", self.config.IPYTHONDIR |
|
851 | print "Now it is", self.config.IPYTHONDIR | |
840 | sys.exit() |
|
852 | sys.exit() | |
841 | self.shadowhist = ipcorehist.ShadowHist(self.db) |
|
853 | self.shadowhist = ipcorehist.ShadowHist(self.db) | |
842 |
|
854 | |||
843 | def init_inspector(self): |
|
855 | def init_inspector(self): | |
844 | # Object inspector |
|
856 | # Object inspector | |
845 | self.inspector = oinspect.Inspector(oinspect.InspectColors, |
|
857 | self.inspector = oinspect.Inspector(oinspect.InspectColors, | |
846 | PyColorize.ANSICodeColors, |
|
858 | PyColorize.ANSICodeColors, | |
847 | 'NoColor', |
|
859 | 'NoColor', | |
848 | self.object_info_string_level) |
|
860 | self.object_info_string_level) | |
849 |
|
861 | |||
850 | def init_readline(self): |
|
862 | def init_readline(self): | |
851 | """Command history completion/saving/reloading.""" |
|
863 | """Command history completion/saving/reloading.""" | |
852 |
|
864 | |||
853 | self.rl_next_input = None |
|
865 | self.rl_next_input = None | |
854 | self.rl_do_indent = False |
|
866 | self.rl_do_indent = False | |
855 |
|
867 | |||
856 | if not self.readline_use: |
|
868 | if not self.readline_use: | |
857 | return |
|
869 | return | |
858 |
|
870 | |||
859 | import IPython.utils.rlineimpl as readline |
|
871 | import IPython.utils.rlineimpl as readline | |
860 |
|
872 | |||
861 | if not readline.have_readline: |
|
873 | if not readline.have_readline: | |
862 | self.has_readline = 0 |
|
874 | self.has_readline = 0 | |
863 | self.readline = None |
|
875 | self.readline = None | |
864 | # no point in bugging windows users with this every time: |
|
876 | # no point in bugging windows users with this every time: | |
865 | warn('Readline services not available on this platform.') |
|
877 | warn('Readline services not available on this platform.') | |
866 | else: |
|
878 | else: | |
867 | sys.modules['readline'] = readline |
|
879 | sys.modules['readline'] = readline | |
868 | import atexit |
|
880 | import atexit | |
869 | from IPython.core.completer import IPCompleter |
|
881 | from IPython.core.completer import IPCompleter | |
870 | self.Completer = IPCompleter(self, |
|
882 | self.Completer = IPCompleter(self, | |
871 | self.user_ns, |
|
883 | self.user_ns, | |
872 | self.user_global_ns, |
|
884 | self.user_global_ns, | |
873 | self.readline_omit__names, |
|
885 | self.readline_omit__names, | |
874 | self.alias_table) |
|
886 | self.alias_table) | |
875 | sdisp = self.strdispatchers.get('complete_command', StrDispatch()) |
|
887 | sdisp = self.strdispatchers.get('complete_command', StrDispatch()) | |
876 | self.strdispatchers['complete_command'] = sdisp |
|
888 | self.strdispatchers['complete_command'] = sdisp | |
877 | self.Completer.custom_completers = sdisp |
|
889 | self.Completer.custom_completers = sdisp | |
878 | # Platform-specific configuration |
|
890 | # Platform-specific configuration | |
879 | if os.name == 'nt': |
|
891 | if os.name == 'nt': | |
880 | self.readline_startup_hook = readline.set_pre_input_hook |
|
892 | self.readline_startup_hook = readline.set_pre_input_hook | |
881 | else: |
|
893 | else: | |
882 | self.readline_startup_hook = readline.set_startup_hook |
|
894 | self.readline_startup_hook = readline.set_startup_hook | |
883 |
|
895 | |||
884 | # Load user's initrc file (readline config) |
|
896 | # Load user's initrc file (readline config) | |
885 | # Or if libedit is used, load editrc. |
|
897 | # Or if libedit is used, load editrc. | |
886 | inputrc_name = os.environ.get('INPUTRC') |
|
898 | inputrc_name = os.environ.get('INPUTRC') | |
887 | if inputrc_name is None: |
|
899 | if inputrc_name is None: | |
888 | home_dir = get_home_dir() |
|
900 | home_dir = get_home_dir() | |
889 | if home_dir is not None: |
|
901 | if home_dir is not None: | |
890 | inputrc_name = '.inputrc' |
|
902 | inputrc_name = '.inputrc' | |
891 | if readline.uses_libedit: |
|
903 | if readline.uses_libedit: | |
892 | inputrc_name = '.editrc' |
|
904 | inputrc_name = '.editrc' | |
893 | inputrc_name = os.path.join(home_dir, inputrc_name) |
|
905 | inputrc_name = os.path.join(home_dir, inputrc_name) | |
894 | if os.path.isfile(inputrc_name): |
|
906 | if os.path.isfile(inputrc_name): | |
895 | try: |
|
907 | try: | |
896 | readline.read_init_file(inputrc_name) |
|
908 | readline.read_init_file(inputrc_name) | |
897 | except: |
|
909 | except: | |
898 | warn('Problems reading readline initialization file <%s>' |
|
910 | warn('Problems reading readline initialization file <%s>' | |
899 | % inputrc_name) |
|
911 | % inputrc_name) | |
900 |
|
912 | |||
901 | self.has_readline = 1 |
|
913 | self.has_readline = 1 | |
902 | self.readline = readline |
|
914 | self.readline = readline | |
903 | # save this in sys so embedded copies can restore it properly |
|
915 | # save this in sys so embedded copies can restore it properly | |
904 | sys.ipcompleter = self.Completer.complete |
|
916 | sys.ipcompleter = self.Completer.complete | |
905 | self.set_completer() |
|
917 | self.set_completer() | |
906 |
|
918 | |||
907 | # Configure readline according to user's prefs |
|
919 | # Configure readline according to user's prefs | |
908 | # This is only done if GNU readline is being used. If libedit |
|
920 | # This is only done if GNU readline is being used. If libedit | |
909 | # is being used (as on Leopard) the readline config is |
|
921 | # is being used (as on Leopard) the readline config is | |
910 | # not run as the syntax for libedit is different. |
|
922 | # not run as the syntax for libedit is different. | |
911 | if not readline.uses_libedit: |
|
923 | if not readline.uses_libedit: | |
912 | for rlcommand in self.readline_parse_and_bind: |
|
924 | for rlcommand in self.readline_parse_and_bind: | |
913 | #print "loading rl:",rlcommand # dbg |
|
925 | #print "loading rl:",rlcommand # dbg | |
914 | readline.parse_and_bind(rlcommand) |
|
926 | readline.parse_and_bind(rlcommand) | |
915 |
|
927 | |||
916 | # Remove some chars from the delimiters list. If we encounter |
|
928 | # Remove some chars from the delimiters list. If we encounter | |
917 | # unicode chars, discard them. |
|
929 | # unicode chars, discard them. | |
918 | delims = readline.get_completer_delims().encode("ascii", "ignore") |
|
930 | delims = readline.get_completer_delims().encode("ascii", "ignore") | |
919 | delims = delims.translate(string._idmap, |
|
931 | delims = delims.translate(string._idmap, | |
920 | self.readline_remove_delims) |
|
932 | self.readline_remove_delims) | |
921 | readline.set_completer_delims(delims) |
|
933 | readline.set_completer_delims(delims) | |
922 | # otherwise we end up with a monster history after a while: |
|
934 | # otherwise we end up with a monster history after a while: | |
923 | readline.set_history_length(1000) |
|
935 | readline.set_history_length(1000) | |
924 | try: |
|
936 | try: | |
925 | #print '*** Reading readline history' # dbg |
|
937 | #print '*** Reading readline history' # dbg | |
926 | readline.read_history_file(self.histfile) |
|
938 | readline.read_history_file(self.histfile) | |
927 | except IOError: |
|
939 | except IOError: | |
928 | pass # It doesn't exist yet. |
|
940 | pass # It doesn't exist yet. | |
929 |
|
941 | |||
930 | atexit.register(self.atexit_operations) |
|
942 | atexit.register(self.atexit_operations) | |
931 | del atexit |
|
943 | del atexit | |
932 |
|
944 | |||
933 | # Configure auto-indent for all platforms |
|
945 | # Configure auto-indent for all platforms | |
934 | self.set_autoindent(self.autoindent) |
|
946 | self.set_autoindent(self.autoindent) | |
935 |
|
947 | |||
936 | def init_prompts(self): |
|
948 | def init_prompts(self): | |
937 | # Initialize cache, set in/out prompts and printing system |
|
949 | # Initialize cache, set in/out prompts and printing system | |
938 | self.outputcache = CachedOutput(self, |
|
950 | self.outputcache = CachedOutput(self, | |
939 | self.cache_size, |
|
951 | self.cache_size, | |
940 | self.pprint, |
|
952 | self.pprint, | |
941 | input_sep = self.separate_in, |
|
953 | input_sep = self.separate_in, | |
942 | output_sep = self.separate_out, |
|
954 | output_sep = self.separate_out, | |
943 | output_sep2 = self.separate_out2, |
|
955 | output_sep2 = self.separate_out2, | |
944 | ps1 = self.prompt_in1, |
|
956 | ps1 = self.prompt_in1, | |
945 | ps2 = self.prompt_in2, |
|
957 | ps2 = self.prompt_in2, | |
946 | ps_out = self.prompt_out, |
|
958 | ps_out = self.prompt_out, | |
947 | pad_left = self.prompts_pad_left) |
|
959 | pad_left = self.prompts_pad_left) | |
948 |
|
960 | |||
949 | # user may have over-ridden the default print hook: |
|
961 | # user may have over-ridden the default print hook: | |
950 | try: |
|
962 | try: | |
951 | self.outputcache.__class__.display = self.hooks.display |
|
963 | self.outputcache.__class__.display = self.hooks.display | |
952 | except AttributeError: |
|
964 | except AttributeError: | |
953 | pass |
|
965 | pass | |
954 |
|
966 | |||
955 | def init_displayhook(self): |
|
967 | def init_displayhook(self): | |
956 | # I don't like assigning globally to sys, because it means when |
|
968 | # I don't like assigning globally to sys, because it means when | |
957 | # embedding instances, each embedded instance overrides the previous |
|
969 | # embedding instances, each embedded instance overrides the previous | |
958 | # choice. But sys.displayhook seems to be called internally by exec, |
|
970 | # choice. But sys.displayhook seems to be called internally by exec, | |
959 | # so I don't see a way around it. We first save the original and then |
|
971 | # so I don't see a way around it. We first save the original and then | |
960 | # overwrite it. |
|
972 | # overwrite it. | |
961 | self.sys_displayhook = sys.displayhook |
|
973 | self.sys_displayhook = sys.displayhook | |
962 | sys.displayhook = self.outputcache |
|
974 | sys.displayhook = self.outputcache | |
963 |
|
975 | |||
964 | def init_reload_doctest(self): |
|
976 | def init_reload_doctest(self): | |
965 | # Do a proper resetting of doctest, including the necessary displayhook |
|
977 | # Do a proper resetting of doctest, including the necessary displayhook | |
966 | # monkeypatching |
|
978 | # monkeypatching | |
967 | try: |
|
979 | try: | |
968 | doctest_reload() |
|
980 | doctest_reload() | |
969 | except ImportError: |
|
981 | except ImportError: | |
970 | warn("doctest module does not exist.") |
|
982 | warn("doctest module does not exist.") | |
971 |
|
983 | |||
972 | def init_magics(self): |
|
984 | def init_magics(self): | |
973 | # Set user colors (don't do it in the constructor above so that it |
|
985 | # Set user colors (don't do it in the constructor above so that it | |
974 | # doesn't crash if colors option is invalid) |
|
986 | # doesn't crash if colors option is invalid) | |
975 | self.magic_colors(self.colors) |
|
987 | self.magic_colors(self.colors) | |
976 |
|
988 | |||
977 | def init_pdb(self): |
|
989 | def init_pdb(self): | |
978 | # Set calling of pdb on exceptions |
|
990 | # Set calling of pdb on exceptions | |
979 | # self.call_pdb is a property |
|
991 | # self.call_pdb is a property | |
980 | self.call_pdb = self.pdb |
|
992 | self.call_pdb = self.pdb | |
981 |
|
993 | |||
982 | # def init_exec_commands(self): |
|
994 | # def init_exec_commands(self): | |
983 | # for cmd in self.config.EXECUTE: |
|
995 | # for cmd in self.config.EXECUTE: | |
984 | # print "execute:", cmd |
|
996 | # print "execute:", cmd | |
985 | # self.api.runlines(cmd) |
|
997 | # self.api.runlines(cmd) | |
986 | # |
|
998 | # | |
987 | # batchrun = False |
|
999 | # batchrun = False | |
988 | # if self.config.has_key('EXECFILE'): |
|
1000 | # if self.config.has_key('EXECFILE'): | |
989 | # for batchfile in [path(arg) for arg in self.config.EXECFILE |
|
1001 | # for batchfile in [path(arg) for arg in self.config.EXECFILE | |
990 | # if arg.lower().endswith('.ipy')]: |
|
1002 | # if arg.lower().endswith('.ipy')]: | |
991 | # if not batchfile.isfile(): |
|
1003 | # if not batchfile.isfile(): | |
992 | # print "No such batch file:", batchfile |
|
1004 | # print "No such batch file:", batchfile | |
993 | # continue |
|
1005 | # continue | |
994 | # self.api.runlines(batchfile.text()) |
|
1006 | # self.api.runlines(batchfile.text()) | |
995 | # batchrun = True |
|
1007 | # batchrun = True | |
996 | # # without -i option, exit after running the batch file |
|
1008 | # # without -i option, exit after running the batch file | |
997 | # if batchrun and not self.interactive: |
|
1009 | # if batchrun and not self.interactive: | |
998 | # self.ask_exit() |
|
1010 | # self.ask_exit() | |
999 |
|
1011 | |||
1000 | # def load(self, mod): |
|
1012 | # def load(self, mod): | |
1001 | # """ Load an extension. |
|
1013 | # """ Load an extension. | |
1002 | # |
|
1014 | # | |
1003 | # Some modules should (or must) be 'load()':ed, rather than just imported. |
|
1015 | # Some modules should (or must) be 'load()':ed, rather than just imported. | |
1004 | # |
|
1016 | # | |
1005 | # Loading will do: |
|
1017 | # Loading will do: | |
1006 | # |
|
1018 | # | |
1007 | # - run init_ipython(ip) |
|
1019 | # - run init_ipython(ip) | |
1008 | # - run ipython_firstrun(ip) |
|
1020 | # - run ipython_firstrun(ip) | |
1009 | # """ |
|
1021 | # """ | |
1010 | # |
|
1022 | # | |
1011 | # if mod in self.extensions: |
|
1023 | # if mod in self.extensions: | |
1012 | # # just to make sure we don't init it twice |
|
1024 | # # just to make sure we don't init it twice | |
1013 | # # note that if you 'load' a module that has already been |
|
1025 | # # note that if you 'load' a module that has already been | |
1014 | # # imported, init_ipython gets run anyway |
|
1026 | # # imported, init_ipython gets run anyway | |
1015 | # |
|
1027 | # | |
1016 | # return self.extensions[mod] |
|
1028 | # return self.extensions[mod] | |
1017 | # __import__(mod) |
|
1029 | # __import__(mod) | |
1018 | # m = sys.modules[mod] |
|
1030 | # m = sys.modules[mod] | |
1019 | # if hasattr(m,'init_ipython'): |
|
1031 | # if hasattr(m,'init_ipython'): | |
1020 | # m.init_ipython(self) |
|
1032 | # m.init_ipython(self) | |
1021 | # |
|
1033 | # | |
1022 | # if hasattr(m,'ipython_firstrun'): |
|
1034 | # if hasattr(m,'ipython_firstrun'): | |
1023 | # already_loaded = self.db.get('firstrun_done', set()) |
|
1035 | # already_loaded = self.db.get('firstrun_done', set()) | |
1024 | # if mod not in already_loaded: |
|
1036 | # if mod not in already_loaded: | |
1025 | # m.ipython_firstrun(self) |
|
1037 | # m.ipython_firstrun(self) | |
1026 | # already_loaded.add(mod) |
|
1038 | # already_loaded.add(mod) | |
1027 | # self.db['firstrun_done'] = already_loaded |
|
1039 | # self.db['firstrun_done'] = already_loaded | |
1028 | # |
|
1040 | # | |
1029 | # self.extensions[mod] = m |
|
1041 | # self.extensions[mod] = m | |
1030 | # return m |
|
1042 | # return m | |
1031 |
|
1043 | |||
1032 | def init_namespaces(self): |
|
1044 | def init_namespaces(self): | |
1033 | """Initialize all user-visible namespaces to their minimum defaults. |
|
1045 | """Initialize all user-visible namespaces to their minimum defaults. | |
1034 |
|
1046 | |||
1035 | Certain history lists are also initialized here, as they effectively |
|
1047 | Certain history lists are also initialized here, as they effectively | |
1036 | act as user namespaces. |
|
1048 | act as user namespaces. | |
1037 |
|
1049 | |||
1038 | Notes |
|
1050 | Notes | |
1039 | ----- |
|
1051 | ----- | |
1040 | All data structures here are only filled in, they are NOT reset by this |
|
1052 | All data structures here are only filled in, they are NOT reset by this | |
1041 | method. If they were not empty before, data will simply be added to |
|
1053 | method. If they were not empty before, data will simply be added to | |
1042 | therm. |
|
1054 | therm. | |
1043 | """ |
|
1055 | """ | |
1044 | # The user namespace MUST have a pointer to the shell itself. |
|
1056 | # The user namespace MUST have a pointer to the shell itself. | |
1045 | self.user_ns[self.name] = self |
|
1057 | self.user_ns[self.name] = self | |
1046 |
|
1058 | |||
1047 | # Store myself as the public api!!! |
|
1059 | # Store myself as the public api!!! | |
1048 | self.user_ns['_ip'] = self |
|
1060 | self.user_ns['_ip'] = self | |
1049 |
|
1061 | |||
1050 | # make global variables for user access to the histories |
|
1062 | # make global variables for user access to the histories | |
1051 | self.user_ns['_ih'] = self.input_hist |
|
1063 | self.user_ns['_ih'] = self.input_hist | |
1052 | self.user_ns['_oh'] = self.output_hist |
|
1064 | self.user_ns['_oh'] = self.output_hist | |
1053 | self.user_ns['_dh'] = self.dir_hist |
|
1065 | self.user_ns['_dh'] = self.dir_hist | |
1054 |
|
1066 | |||
1055 | # user aliases to input and output histories |
|
1067 | # user aliases to input and output histories | |
1056 | self.user_ns['In'] = self.input_hist |
|
1068 | self.user_ns['In'] = self.input_hist | |
1057 | self.user_ns['Out'] = self.output_hist |
|
1069 | self.user_ns['Out'] = self.output_hist | |
1058 |
|
1070 | |||
1059 | self.user_ns['_sh'] = shadowns |
|
1071 | self.user_ns['_sh'] = shadowns | |
1060 |
|
1072 | |||
1061 | # Put 'help' in the user namespace |
|
1073 | # Put 'help' in the user namespace | |
1062 | try: |
|
1074 | try: | |
1063 | from site import _Helper |
|
1075 | from site import _Helper | |
1064 | self.user_ns['help'] = _Helper() |
|
1076 | self.user_ns['help'] = _Helper() | |
1065 | except ImportError: |
|
1077 | except ImportError: | |
1066 | warn('help() not available - check site.py') |
|
1078 | warn('help() not available - check site.py') | |
1067 |
|
1079 | |||
1068 | def add_builtins(self): |
|
1080 | def add_builtins(self): | |
1069 | """Store ipython references into the __builtin__ namespace. |
|
1081 | """Store ipython references into the __builtin__ namespace. | |
1070 |
|
1082 | |||
1071 | We strive to modify the __builtin__ namespace as little as possible. |
|
1083 | We strive to modify the __builtin__ namespace as little as possible. | |
1072 | """ |
|
1084 | """ | |
1073 |
|
1085 | |||
1074 | # Install our own quitter instead of the builtins. |
|
1086 | # Install our own quitter instead of the builtins. | |
1075 | # This used to be in the __init__ method, but this is a better |
|
1087 | # This used to be in the __init__ method, but this is a better | |
1076 | # place for it. These can be incorporated to the logic below |
|
1088 | # place for it. These can be incorporated to the logic below | |
1077 | # when it is refactored. |
|
1089 | # when it is refactored. | |
1078 | __builtin__.exit = Quitter(self,'exit') |
|
1090 | __builtin__.exit = Quitter(self,'exit') | |
1079 | __builtin__.quit = Quitter(self,'quit') |
|
1091 | __builtin__.quit = Quitter(self,'quit') | |
1080 |
|
1092 | |||
1081 | # Recursive reload |
|
1093 | # Recursive reload | |
1082 | try: |
|
1094 | try: | |
1083 | from IPython.lib import deepreload |
|
1095 | from IPython.lib import deepreload | |
1084 | if self.deep_reload: |
|
1096 | if self.deep_reload: | |
1085 | __builtin__.reload = deepreload.reload |
|
1097 | __builtin__.reload = deepreload.reload | |
1086 | else: |
|
1098 | else: | |
1087 | __builtin__.dreload = deepreload.reload |
|
1099 | __builtin__.dreload = deepreload.reload | |
1088 | del deepreload |
|
1100 | del deepreload | |
1089 | except ImportError: |
|
1101 | except ImportError: | |
1090 | pass |
|
1102 | pass | |
1091 |
|
1103 | |||
1092 | # Keep in the builtins a flag for when IPython is active. We set it |
|
1104 | # Keep in the builtins a flag for when IPython is active. We set it | |
1093 | # with setdefault so that multiple nested IPythons don't clobber one |
|
1105 | # with setdefault so that multiple nested IPythons don't clobber one | |
1094 | # another. Each will increase its value by one upon being activated, |
|
1106 | # another. Each will increase its value by one upon being activated, | |
1095 | # which also gives us a way to determine the nesting level. |
|
1107 | # which also gives us a way to determine the nesting level. | |
1096 | __builtin__.__dict__.setdefault('__IPYTHON__active',0) |
|
1108 | __builtin__.__dict__.setdefault('__IPYTHON__active',0) | |
1097 |
|
1109 | |||
1098 | def clean_builtins(self): |
|
1110 | def clean_builtins(self): | |
1099 | """Remove any builtins which might have been added by add_builtins, or |
|
1111 | """Remove any builtins which might have been added by add_builtins, or | |
1100 | restore overwritten ones to their previous values.""" |
|
1112 | restore overwritten ones to their previous values.""" | |
1101 | for biname,bival in self.builtins_added.items(): |
|
1113 | for biname,bival in self.builtins_added.items(): | |
1102 | if bival is Undefined: |
|
1114 | if bival is Undefined: | |
1103 | del __builtin__.__dict__[biname] |
|
1115 | del __builtin__.__dict__[biname] | |
1104 | else: |
|
1116 | else: | |
1105 | __builtin__.__dict__[biname] = bival |
|
1117 | __builtin__.__dict__[biname] = bival | |
1106 | self.builtins_added.clear() |
|
1118 | self.builtins_added.clear() | |
1107 |
|
1119 | |||
1108 | def set_hook(self,name,hook, priority = 50, str_key = None, re_key = None): |
|
1120 | def set_hook(self,name,hook, priority = 50, str_key = None, re_key = None): | |
1109 | """set_hook(name,hook) -> sets an internal IPython hook. |
|
1121 | """set_hook(name,hook) -> sets an internal IPython hook. | |
1110 |
|
1122 | |||
1111 | IPython exposes some of its internal API as user-modifiable hooks. By |
|
1123 | IPython exposes some of its internal API as user-modifiable hooks. By | |
1112 | adding your function to one of these hooks, you can modify IPython's |
|
1124 | adding your function to one of these hooks, you can modify IPython's | |
1113 | behavior to call at runtime your own routines.""" |
|
1125 | behavior to call at runtime your own routines.""" | |
1114 |
|
1126 | |||
1115 | # At some point in the future, this should validate the hook before it |
|
1127 | # At some point in the future, this should validate the hook before it | |
1116 | # accepts it. Probably at least check that the hook takes the number |
|
1128 | # accepts it. Probably at least check that the hook takes the number | |
1117 | # of args it's supposed to. |
|
1129 | # of args it's supposed to. | |
1118 |
|
1130 | |||
1119 | f = new.instancemethod(hook,self,self.__class__) |
|
1131 | f = new.instancemethod(hook,self,self.__class__) | |
1120 |
|
1132 | |||
1121 | # check if the hook is for strdispatcher first |
|
1133 | # check if the hook is for strdispatcher first | |
1122 | if str_key is not None: |
|
1134 | if str_key is not None: | |
1123 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
1135 | sdp = self.strdispatchers.get(name, StrDispatch()) | |
1124 | sdp.add_s(str_key, f, priority ) |
|
1136 | sdp.add_s(str_key, f, priority ) | |
1125 | self.strdispatchers[name] = sdp |
|
1137 | self.strdispatchers[name] = sdp | |
1126 | return |
|
1138 | return | |
1127 | if re_key is not None: |
|
1139 | if re_key is not None: | |
1128 | sdp = self.strdispatchers.get(name, StrDispatch()) |
|
1140 | sdp = self.strdispatchers.get(name, StrDispatch()) | |
1129 | sdp.add_re(re.compile(re_key), f, priority ) |
|
1141 | sdp.add_re(re.compile(re_key), f, priority ) | |
1130 | self.strdispatchers[name] = sdp |
|
1142 | self.strdispatchers[name] = sdp | |
1131 | return |
|
1143 | return | |
1132 |
|
1144 | |||
1133 | dp = getattr(self.hooks, name, None) |
|
1145 | dp = getattr(self.hooks, name, None) | |
1134 | if name not in IPython.core.hooks.__all__: |
|
1146 | if name not in IPython.core.hooks.__all__: | |
1135 | print "Warning! Hook '%s' is not one of %s" % (name, IPython.core.hooks.__all__ ) |
|
1147 | print "Warning! Hook '%s' is not one of %s" % (name, IPython.core.hooks.__all__ ) | |
1136 | if not dp: |
|
1148 | if not dp: | |
1137 | dp = IPython.core.hooks.CommandChainDispatcher() |
|
1149 | dp = IPython.core.hooks.CommandChainDispatcher() | |
1138 |
|
1150 | |||
1139 | try: |
|
1151 | try: | |
1140 | dp.add(f,priority) |
|
1152 | dp.add(f,priority) | |
1141 | except AttributeError: |
|
1153 | except AttributeError: | |
1142 | # it was not commandchain, plain old func - replace |
|
1154 | # it was not commandchain, plain old func - replace | |
1143 | dp = f |
|
1155 | dp = f | |
1144 |
|
1156 | |||
1145 | setattr(self.hooks,name, dp) |
|
1157 | setattr(self.hooks,name, dp) | |
1146 |
|
1158 | |||
1147 |
|
1159 | |||
1148 | #setattr(self.hooks,name,new.instancemethod(hook,self,self.__class__)) |
|
1160 | #setattr(self.hooks,name,new.instancemethod(hook,self,self.__class__)) | |
1149 |
|
1161 | |||
1150 | def set_crash_handler(self,crashHandler): |
|
1162 | def set_crash_handler(self,crashHandler): | |
1151 | """Set the IPython crash handler. |
|
1163 | """Set the IPython crash handler. | |
1152 |
|
1164 | |||
1153 | This must be a callable with a signature suitable for use as |
|
1165 | This must be a callable with a signature suitable for use as | |
1154 | sys.excepthook.""" |
|
1166 | sys.excepthook.""" | |
1155 |
|
1167 | |||
1156 | # Install the given crash handler as the Python exception hook |
|
1168 | # Install the given crash handler as the Python exception hook | |
1157 | sys.excepthook = crashHandler |
|
1169 | sys.excepthook = crashHandler | |
1158 |
|
1170 | |||
1159 | # The instance will store a pointer to this, so that runtime code |
|
1171 | # The instance will store a pointer to this, so that runtime code | |
1160 | # (such as magics) can access it. This is because during the |
|
1172 | # (such as magics) can access it. This is because during the | |
1161 | # read-eval loop, it gets temporarily overwritten (to deal with GUI |
|
1173 | # read-eval loop, it gets temporarily overwritten (to deal with GUI | |
1162 | # frameworks). |
|
1174 | # frameworks). | |
1163 | self.sys_excepthook = sys.excepthook |
|
1175 | self.sys_excepthook = sys.excepthook | |
1164 |
|
1176 | |||
1165 |
|
1177 | |||
1166 | def set_custom_exc(self,exc_tuple,handler): |
|
1178 | def set_custom_exc(self,exc_tuple,handler): | |
1167 | """set_custom_exc(exc_tuple,handler) |
|
1179 | """set_custom_exc(exc_tuple,handler) | |
1168 |
|
1180 | |||
1169 | Set a custom exception handler, which will be called if any of the |
|
1181 | Set a custom exception handler, which will be called if any of the | |
1170 | exceptions in exc_tuple occur in the mainloop (specifically, in the |
|
1182 | exceptions in exc_tuple occur in the mainloop (specifically, in the | |
1171 | runcode() method. |
|
1183 | runcode() method. | |
1172 |
|
1184 | |||
1173 | Inputs: |
|
1185 | Inputs: | |
1174 |
|
1186 | |||
1175 | - exc_tuple: a *tuple* of valid exceptions to call the defined |
|
1187 | - exc_tuple: a *tuple* of valid exceptions to call the defined | |
1176 | handler for. It is very important that you use a tuple, and NOT A |
|
1188 | handler for. It is very important that you use a tuple, and NOT A | |
1177 | LIST here, because of the way Python's except statement works. If |
|
1189 | LIST here, because of the way Python's except statement works. If | |
1178 | you only want to trap a single exception, use a singleton tuple: |
|
1190 | you only want to trap a single exception, use a singleton tuple: | |
1179 |
|
1191 | |||
1180 | exc_tuple == (MyCustomException,) |
|
1192 | exc_tuple == (MyCustomException,) | |
1181 |
|
1193 | |||
1182 | - handler: this must be defined as a function with the following |
|
1194 | - handler: this must be defined as a function with the following | |
1183 | basic interface: def my_handler(self,etype,value,tb). |
|
1195 | basic interface: def my_handler(self,etype,value,tb). | |
1184 |
|
1196 | |||
1185 | This will be made into an instance method (via new.instancemethod) |
|
1197 | This will be made into an instance method (via new.instancemethod) | |
1186 | of IPython itself, and it will be called if any of the exceptions |
|
1198 | of IPython itself, and it will be called if any of the exceptions | |
1187 | listed in the exc_tuple are caught. If the handler is None, an |
|
1199 | listed in the exc_tuple are caught. If the handler is None, an | |
1188 | internal basic one is used, which just prints basic info. |
|
1200 | internal basic one is used, which just prints basic info. | |
1189 |
|
1201 | |||
1190 | WARNING: by putting in your own exception handler into IPython's main |
|
1202 | WARNING: by putting in your own exception handler into IPython's main | |
1191 | execution loop, you run a very good chance of nasty crashes. This |
|
1203 | execution loop, you run a very good chance of nasty crashes. This | |
1192 | facility should only be used if you really know what you are doing.""" |
|
1204 | facility should only be used if you really know what you are doing.""" | |
1193 |
|
1205 | |||
1194 | assert type(exc_tuple)==type(()) , \ |
|
1206 | assert type(exc_tuple)==type(()) , \ | |
1195 | "The custom exceptions must be given AS A TUPLE." |
|
1207 | "The custom exceptions must be given AS A TUPLE." | |
1196 |
|
1208 | |||
1197 | def dummy_handler(self,etype,value,tb): |
|
1209 | def dummy_handler(self,etype,value,tb): | |
1198 | print '*** Simple custom exception handler ***' |
|
1210 | print '*** Simple custom exception handler ***' | |
1199 | print 'Exception type :',etype |
|
1211 | print 'Exception type :',etype | |
1200 | print 'Exception value:',value |
|
1212 | print 'Exception value:',value | |
1201 | print 'Traceback :',tb |
|
1213 | print 'Traceback :',tb | |
1202 | print 'Source code :','\n'.join(self.buffer) |
|
1214 | print 'Source code :','\n'.join(self.buffer) | |
1203 |
|
1215 | |||
1204 | if handler is None: handler = dummy_handler |
|
1216 | if handler is None: handler = dummy_handler | |
1205 |
|
1217 | |||
1206 | self.CustomTB = new.instancemethod(handler,self,self.__class__) |
|
1218 | self.CustomTB = new.instancemethod(handler,self,self.__class__) | |
1207 | self.custom_exceptions = exc_tuple |
|
1219 | self.custom_exceptions = exc_tuple | |
1208 |
|
1220 | |||
1209 | def set_custom_completer(self,completer,pos=0): |
|
1221 | def set_custom_completer(self,completer,pos=0): | |
1210 | """set_custom_completer(completer,pos=0) |
|
1222 | """set_custom_completer(completer,pos=0) | |
1211 |
|
1223 | |||
1212 | Adds a new custom completer function. |
|
1224 | Adds a new custom completer function. | |
1213 |
|
1225 | |||
1214 | The position argument (defaults to 0) is the index in the completers |
|
1226 | The position argument (defaults to 0) is the index in the completers | |
1215 | list where you want the completer to be inserted.""" |
|
1227 | list where you want the completer to be inserted.""" | |
1216 |
|
1228 | |||
1217 | newcomp = new.instancemethod(completer,self.Completer, |
|
1229 | newcomp = new.instancemethod(completer,self.Completer, | |
1218 | self.Completer.__class__) |
|
1230 | self.Completer.__class__) | |
1219 | self.Completer.matchers.insert(pos,newcomp) |
|
1231 | self.Completer.matchers.insert(pos,newcomp) | |
1220 |
|
1232 | |||
1221 | def set_completer(self): |
|
1233 | def set_completer(self): | |
1222 | """reset readline's completer to be our own.""" |
|
1234 | """reset readline's completer to be our own.""" | |
1223 | self.readline.set_completer(self.Completer.complete) |
|
1235 | self.readline.set_completer(self.Completer.complete) | |
1224 |
|
1236 | |||
1225 | def _get_call_pdb(self): |
|
1237 | def _get_call_pdb(self): | |
1226 | return self._call_pdb |
|
1238 | return self._call_pdb | |
1227 |
|
1239 | |||
1228 | def _set_call_pdb(self,val): |
|
1240 | def _set_call_pdb(self,val): | |
1229 |
|
1241 | |||
1230 | if val not in (0,1,False,True): |
|
1242 | if val not in (0,1,False,True): | |
1231 | raise ValueError,'new call_pdb value must be boolean' |
|
1243 | raise ValueError,'new call_pdb value must be boolean' | |
1232 |
|
1244 | |||
1233 | # store value in instance |
|
1245 | # store value in instance | |
1234 | self._call_pdb = val |
|
1246 | self._call_pdb = val | |
1235 |
|
1247 | |||
1236 | # notify the actual exception handlers |
|
1248 | # notify the actual exception handlers | |
1237 | self.InteractiveTB.call_pdb = val |
|
1249 | self.InteractiveTB.call_pdb = val | |
1238 | if self.isthreaded: |
|
1250 | if self.isthreaded: | |
1239 | try: |
|
1251 | try: | |
1240 | self.sys_excepthook.call_pdb = val |
|
1252 | self.sys_excepthook.call_pdb = val | |
1241 | except: |
|
1253 | except: | |
1242 | warn('Failed to activate pdb for threaded exception handler') |
|
1254 | warn('Failed to activate pdb for threaded exception handler') | |
1243 |
|
1255 | |||
1244 | call_pdb = property(_get_call_pdb,_set_call_pdb,None, |
|
1256 | call_pdb = property(_get_call_pdb,_set_call_pdb,None, | |
1245 | 'Control auto-activation of pdb at exceptions') |
|
1257 | 'Control auto-activation of pdb at exceptions') | |
1246 |
|
1258 | |||
1247 | def magic(self,arg_s): |
|
1259 | def magic(self,arg_s): | |
1248 | """Call a magic function by name. |
|
1260 | """Call a magic function by name. | |
1249 |
|
1261 | |||
1250 | Input: a string containing the name of the magic function to call and any |
|
1262 | Input: a string containing the name of the magic function to call and any | |
1251 | additional arguments to be passed to the magic. |
|
1263 | additional arguments to be passed to the magic. | |
1252 |
|
1264 | |||
1253 | magic('name -opt foo bar') is equivalent to typing at the ipython |
|
1265 | magic('name -opt foo bar') is equivalent to typing at the ipython | |
1254 | prompt: |
|
1266 | prompt: | |
1255 |
|
1267 | |||
1256 | In[1]: %name -opt foo bar |
|
1268 | In[1]: %name -opt foo bar | |
1257 |
|
1269 | |||
1258 | To call a magic without arguments, simply use magic('name'). |
|
1270 | To call a magic without arguments, simply use magic('name'). | |
1259 |
|
1271 | |||
1260 | This provides a proper Python function to call IPython's magics in any |
|
1272 | This provides a proper Python function to call IPython's magics in any | |
1261 | valid Python code you can type at the interpreter, including loops and |
|
1273 | valid Python code you can type at the interpreter, including loops and | |
1262 | compound statements. |
|
1274 | compound statements. | |
1263 | """ |
|
1275 | """ | |
1264 |
|
1276 | |||
1265 | args = arg_s.split(' ',1) |
|
1277 | args = arg_s.split(' ',1) | |
1266 | magic_name = args[0] |
|
1278 | magic_name = args[0] | |
1267 | magic_name = magic_name.lstrip(self.ESC_MAGIC) |
|
1279 | magic_name = magic_name.lstrip(self.ESC_MAGIC) | |
1268 |
|
1280 | |||
1269 | try: |
|
1281 | try: | |
1270 | magic_args = args[1] |
|
1282 | magic_args = args[1] | |
1271 | except IndexError: |
|
1283 | except IndexError: | |
1272 | magic_args = '' |
|
1284 | magic_args = '' | |
1273 | fn = getattr(self,'magic_'+magic_name,None) |
|
1285 | fn = getattr(self,'magic_'+magic_name,None) | |
1274 | if fn is None: |
|
1286 | if fn is None: | |
1275 | error("Magic function `%s` not found." % magic_name) |
|
1287 | error("Magic function `%s` not found." % magic_name) | |
1276 | else: |
|
1288 | else: | |
1277 | magic_args = self.var_expand(magic_args,1) |
|
1289 | magic_args = self.var_expand(magic_args,1) | |
1278 | return fn(magic_args) |
|
1290 | return fn(magic_args) | |
1279 |
|
1291 | |||
1280 | def define_magic(self, magicname, func): |
|
1292 | def define_magic(self, magicname, func): | |
1281 | """Expose own function as magic function for ipython |
|
1293 | """Expose own function as magic function for ipython | |
1282 |
|
1294 | |||
1283 | def foo_impl(self,parameter_s=''): |
|
1295 | def foo_impl(self,parameter_s=''): | |
1284 | 'My very own magic!. (Use docstrings, IPython reads them).' |
|
1296 | 'My very own magic!. (Use docstrings, IPython reads them).' | |
1285 | print 'Magic function. Passed parameter is between < >:' |
|
1297 | print 'Magic function. Passed parameter is between < >:' | |
1286 | print '<%s>' % parameter_s |
|
1298 | print '<%s>' % parameter_s | |
1287 | print 'The self object is:',self |
|
1299 | print 'The self object is:',self | |
1288 |
|
1300 | |||
1289 | self.define_magic('foo',foo_impl) |
|
1301 | self.define_magic('foo',foo_impl) | |
1290 | """ |
|
1302 | """ | |
1291 |
|
1303 | |||
1292 | import new |
|
1304 | import new | |
1293 | im = new.instancemethod(func,self, self.__class__) |
|
1305 | im = new.instancemethod(func,self, self.__class__) | |
1294 | old = getattr(self, "magic_" + magicname, None) |
|
1306 | old = getattr(self, "magic_" + magicname, None) | |
1295 | setattr(self, "magic_" + magicname, im) |
|
1307 | setattr(self, "magic_" + magicname, im) | |
1296 | return old |
|
1308 | return old | |
1297 |
|
1309 | |||
1298 | def define_macro(self, name, themacro): |
|
1310 | def define_macro(self, name, themacro): | |
1299 | """Define a new macro |
|
1311 | """Define a new macro | |
1300 |
|
1312 | |||
1301 | Parameters |
|
1313 | Parameters | |
1302 | ---------- |
|
1314 | ---------- | |
1303 | name : str |
|
1315 | name : str | |
1304 | The name of the macro. |
|
1316 | The name of the macro. | |
1305 | themacro : str or Macro |
|
1317 | themacro : str or Macro | |
1306 | The action to do upon invoking the macro. If a string, a new |
|
1318 | The action to do upon invoking the macro. If a string, a new | |
1307 | Macro object is created by passing the string to it. |
|
1319 | Macro object is created by passing the string to it. | |
1308 | """ |
|
1320 | """ | |
1309 |
|
1321 | |||
1310 | from IPython.core import macro |
|
1322 | from IPython.core import macro | |
1311 |
|
1323 | |||
1312 | if isinstance(themacro, basestring): |
|
1324 | if isinstance(themacro, basestring): | |
1313 | themacro = macro.Macro(themacro) |
|
1325 | themacro = macro.Macro(themacro) | |
1314 | if not isinstance(themacro, macro.Macro): |
|
1326 | if not isinstance(themacro, macro.Macro): | |
1315 | raise ValueError('A macro must be a string or a Macro instance.') |
|
1327 | raise ValueError('A macro must be a string or a Macro instance.') | |
1316 | self.user_ns[name] = themacro |
|
1328 | self.user_ns[name] = themacro | |
1317 |
|
1329 | |||
1318 | def define_alias(self, name, cmd): |
|
1330 | def define_alias(self, name, cmd): | |
1319 | """ Define a new alias.""" |
|
1331 | """ Define a new alias.""" | |
1320 |
|
1332 | |||
1321 | if callable(cmd): |
|
1333 | if callable(cmd): | |
1322 | self.alias_table[name] = cmd |
|
1334 | self.alias_table[name] = cmd | |
1323 | from IPython.core import shadowns |
|
1335 | from IPython.core import shadowns | |
1324 | setattr(shadowns, name, cmd) |
|
1336 | setattr(shadowns, name, cmd) | |
1325 | return |
|
1337 | return | |
1326 |
|
1338 | |||
1327 | if isinstance(cmd, basestring): |
|
1339 | if isinstance(cmd, basestring): | |
1328 | nargs = cmd.count('%s') |
|
1340 | nargs = cmd.count('%s') | |
1329 | if nargs>0 and cmd.find('%l')>=0: |
|
1341 | if nargs>0 and cmd.find('%l')>=0: | |
1330 | raise Exception('The %s and %l specifiers are mutually ' |
|
1342 | raise Exception('The %s and %l specifiers are mutually ' | |
1331 | 'exclusive in alias definitions.') |
|
1343 | 'exclusive in alias definitions.') | |
1332 |
|
1344 | |||
1333 | self.alias_table[name] = (nargs,cmd) |
|
1345 | self.alias_table[name] = (nargs,cmd) | |
1334 | return |
|
1346 | return | |
1335 |
|
1347 | |||
1336 | self.alias_table[name] = cmd |
|
1348 | self.alias_table[name] = cmd | |
1337 |
|
1349 | |||
1338 | def ipalias(self,arg_s): |
|
1350 | def ipalias(self,arg_s): | |
1339 | """Call an alias by name. |
|
1351 | """Call an alias by name. | |
1340 |
|
1352 | |||
1341 | Input: a string containing the name of the alias to call and any |
|
1353 | Input: a string containing the name of the alias to call and any | |
1342 | additional arguments to be passed to the magic. |
|
1354 | additional arguments to be passed to the magic. | |
1343 |
|
1355 | |||
1344 | ipalias('name -opt foo bar') is equivalent to typing at the ipython |
|
1356 | ipalias('name -opt foo bar') is equivalent to typing at the ipython | |
1345 | prompt: |
|
1357 | prompt: | |
1346 |
|
1358 | |||
1347 | In[1]: name -opt foo bar |
|
1359 | In[1]: name -opt foo bar | |
1348 |
|
1360 | |||
1349 | To call an alias without arguments, simply use ipalias('name'). |
|
1361 | To call an alias without arguments, simply use ipalias('name'). | |
1350 |
|
1362 | |||
1351 | This provides a proper Python function to call IPython's aliases in any |
|
1363 | This provides a proper Python function to call IPython's aliases in any | |
1352 | valid Python code you can type at the interpreter, including loops and |
|
1364 | valid Python code you can type at the interpreter, including loops and | |
1353 | compound statements. It is added by IPython to the Python builtin |
|
1365 | compound statements. It is added by IPython to the Python builtin | |
1354 | namespace upon initialization.""" |
|
1366 | namespace upon initialization.""" | |
1355 |
|
1367 | |||
1356 | args = arg_s.split(' ',1) |
|
1368 | args = arg_s.split(' ',1) | |
1357 | alias_name = args[0] |
|
1369 | alias_name = args[0] | |
1358 | try: |
|
1370 | try: | |
1359 | alias_args = args[1] |
|
1371 | alias_args = args[1] | |
1360 | except IndexError: |
|
1372 | except IndexError: | |
1361 | alias_args = '' |
|
1373 | alias_args = '' | |
1362 | if alias_name in self.alias_table: |
|
1374 | if alias_name in self.alias_table: | |
1363 | self.call_alias(alias_name,alias_args) |
|
1375 | self.call_alias(alias_name,alias_args) | |
1364 | else: |
|
1376 | else: | |
1365 | error("Alias `%s` not found." % alias_name) |
|
1377 | error("Alias `%s` not found." % alias_name) | |
1366 |
|
1378 | |||
1367 | def system(self, cmd): |
|
1379 | def system(self, cmd): | |
1368 | """Make a system call, using IPython.""" |
|
1380 | """Make a system call, using IPython.""" | |
1369 | return self.hooks.shell_hook(self.var_expand(cmd, depth=2)) |
|
1381 | return self.hooks.shell_hook(self.var_expand(cmd, depth=2)) | |
1370 |
|
1382 | |||
1371 | def ex(self, cmd): |
|
1383 | def ex(self, cmd): | |
1372 | """Execute a normal python statement in user namespace.""" |
|
1384 | """Execute a normal python statement in user namespace.""" | |
1373 | exec cmd in self.user_ns |
|
1385 | exec cmd in self.user_ns | |
1374 |
|
1386 | |||
1375 | def ev(self, expr): |
|
1387 | def ev(self, expr): | |
1376 | """Evaluate python expression expr in user namespace. |
|
1388 | """Evaluate python expression expr in user namespace. | |
1377 |
|
1389 | |||
1378 | Returns the result of evaluation |
|
1390 | Returns the result of evaluation | |
1379 | """ |
|
1391 | """ | |
1380 | return eval(expr,self.user_ns) |
|
1392 | return eval(expr,self.user_ns) | |
1381 |
|
1393 | |||
1382 | def getoutput(self, cmd): |
|
1394 | def getoutput(self, cmd): | |
1383 | return getoutput(self.var_expand(cmd,depth=2), |
|
1395 | return getoutput(self.var_expand(cmd,depth=2), | |
1384 | header=self.system_header, |
|
1396 | header=self.system_header, | |
1385 | verbose=self.system_verbose) |
|
1397 | verbose=self.system_verbose) | |
1386 |
|
1398 | |||
1387 | def getoutputerror(self, cmd): |
|
1399 | def getoutputerror(self, cmd): | |
1388 | return getoutputerror(self.var_expand(cmd,depth=2), |
|
1400 | return getoutputerror(self.var_expand(cmd,depth=2), | |
1389 | header=self.system_header, |
|
1401 | header=self.system_header, | |
1390 | verbose=self.system_verbose) |
|
1402 | verbose=self.system_verbose) | |
1391 |
|
1403 | |||
1392 | def complete(self,text): |
|
1404 | def complete(self,text): | |
1393 | """Return a sorted list of all possible completions on text. |
|
1405 | """Return a sorted list of all possible completions on text. | |
1394 |
|
1406 | |||
1395 | Inputs: |
|
1407 | Inputs: | |
1396 |
|
1408 | |||
1397 | - text: a string of text to be completed on. |
|
1409 | - text: a string of text to be completed on. | |
1398 |
|
1410 | |||
1399 | This is a wrapper around the completion mechanism, similar to what |
|
1411 | This is a wrapper around the completion mechanism, similar to what | |
1400 | readline does at the command line when the TAB key is hit. By |
|
1412 | readline does at the command line when the TAB key is hit. By | |
1401 | exposing it as a method, it can be used by other non-readline |
|
1413 | exposing it as a method, it can be used by other non-readline | |
1402 | environments (such as GUIs) for text completion. |
|
1414 | environments (such as GUIs) for text completion. | |
1403 |
|
1415 | |||
1404 | Simple usage example: |
|
1416 | Simple usage example: | |
1405 |
|
1417 | |||
1406 | In [7]: x = 'hello' |
|
1418 | In [7]: x = 'hello' | |
1407 |
|
1419 | |||
1408 | In [8]: x |
|
1420 | In [8]: x | |
1409 | Out[8]: 'hello' |
|
1421 | Out[8]: 'hello' | |
1410 |
|
1422 | |||
1411 | In [9]: print x |
|
1423 | In [9]: print x | |
1412 | hello |
|
1424 | hello | |
1413 |
|
1425 | |||
1414 | In [10]: _ip.complete('x.l') |
|
1426 | In [10]: _ip.complete('x.l') | |
1415 | Out[10]: ['x.ljust', 'x.lower', 'x.lstrip'] |
|
1427 | Out[10]: ['x.ljust', 'x.lower', 'x.lstrip'] | |
1416 | """ |
|
1428 | """ | |
1417 |
|
1429 | |||
1418 | complete = self.Completer.complete |
|
1430 | complete = self.Completer.complete | |
1419 | state = 0 |
|
1431 | state = 0 | |
1420 | # use a dict so we get unique keys, since ipyhton's multiple |
|
1432 | # use a dict so we get unique keys, since ipyhton's multiple | |
1421 | # completers can return duplicates. When we make 2.4 a requirement, |
|
1433 | # completers can return duplicates. When we make 2.4 a requirement, | |
1422 | # start using sets instead, which are faster. |
|
1434 | # start using sets instead, which are faster. | |
1423 | comps = {} |
|
1435 | comps = {} | |
1424 | while True: |
|
1436 | while True: | |
1425 | newcomp = complete(text,state,line_buffer=text) |
|
1437 | newcomp = complete(text,state,line_buffer=text) | |
1426 | if newcomp is None: |
|
1438 | if newcomp is None: | |
1427 | break |
|
1439 | break | |
1428 | comps[newcomp] = 1 |
|
1440 | comps[newcomp] = 1 | |
1429 | state += 1 |
|
1441 | state += 1 | |
1430 | outcomps = comps.keys() |
|
1442 | outcomps = comps.keys() | |
1431 | outcomps.sort() |
|
1443 | outcomps.sort() | |
1432 | #print "T:",text,"OC:",outcomps # dbg |
|
1444 | #print "T:",text,"OC:",outcomps # dbg | |
1433 | #print "vars:",self.user_ns.keys() |
|
1445 | #print "vars:",self.user_ns.keys() | |
1434 | return outcomps |
|
1446 | return outcomps | |
1435 |
|
1447 | |||
1436 | def set_completer_frame(self, frame=None): |
|
1448 | def set_completer_frame(self, frame=None): | |
1437 | if frame: |
|
1449 | if frame: | |
1438 | self.Completer.namespace = frame.f_locals |
|
1450 | self.Completer.namespace = frame.f_locals | |
1439 | self.Completer.global_namespace = frame.f_globals |
|
1451 | self.Completer.global_namespace = frame.f_globals | |
1440 | else: |
|
1452 | else: | |
1441 | self.Completer.namespace = self.user_ns |
|
1453 | self.Completer.namespace = self.user_ns | |
1442 | self.Completer.global_namespace = self.user_global_ns |
|
1454 | self.Completer.global_namespace = self.user_global_ns | |
1443 |
|
1455 | |||
1444 | def init_auto_alias(self): |
|
1456 | def init_auto_alias(self): | |
1445 | """Define some aliases automatically. |
|
1457 | """Define some aliases automatically. | |
1446 |
|
1458 | |||
1447 | These are ALL parameter-less aliases""" |
|
1459 | These are ALL parameter-less aliases""" | |
1448 |
|
1460 | |||
1449 | for alias,cmd in self.auto_alias: |
|
1461 | for alias,cmd in self.auto_alias: | |
1450 | self.define_alias(alias,cmd) |
|
1462 | self.define_alias(alias,cmd) | |
1451 |
|
1463 | |||
1452 | def alias_table_validate(self,verbose=0): |
|
1464 | def alias_table_validate(self,verbose=0): | |
1453 | """Update information about the alias table. |
|
1465 | """Update information about the alias table. | |
1454 |
|
1466 | |||
1455 | In particular, make sure no Python keywords/builtins are in it.""" |
|
1467 | In particular, make sure no Python keywords/builtins are in it.""" | |
1456 |
|
1468 | |||
1457 | no_alias = self.no_alias |
|
1469 | no_alias = self.no_alias | |
1458 | for k in self.alias_table.keys(): |
|
1470 | for k in self.alias_table.keys(): | |
1459 | if k in no_alias: |
|
1471 | if k in no_alias: | |
1460 | del self.alias_table[k] |
|
1472 | del self.alias_table[k] | |
1461 | if verbose: |
|
1473 | if verbose: | |
1462 | print ("Deleting alias <%s>, it's a Python " |
|
1474 | print ("Deleting alias <%s>, it's a Python " | |
1463 | "keyword or builtin." % k) |
|
1475 | "keyword or builtin." % k) | |
1464 |
|
1476 | |||
1465 | def set_next_input(self, s): |
|
1477 | def set_next_input(self, s): | |
1466 | """ Sets the 'default' input string for the next command line. |
|
1478 | """ Sets the 'default' input string for the next command line. | |
1467 |
|
1479 | |||
1468 | Requires readline. |
|
1480 | Requires readline. | |
1469 |
|
1481 | |||
1470 | Example: |
|
1482 | Example: | |
1471 |
|
1483 | |||
1472 | [D:\ipython]|1> _ip.set_next_input("Hello Word") |
|
1484 | [D:\ipython]|1> _ip.set_next_input("Hello Word") | |
1473 | [D:\ipython]|2> Hello Word_ # cursor is here |
|
1485 | [D:\ipython]|2> Hello Word_ # cursor is here | |
1474 | """ |
|
1486 | """ | |
1475 |
|
1487 | |||
1476 | self.rl_next_input = s |
|
1488 | self.rl_next_input = s | |
1477 |
|
1489 | |||
1478 | def set_autoindent(self,value=None): |
|
1490 | def set_autoindent(self,value=None): | |
1479 | """Set the autoindent flag, checking for readline support. |
|
1491 | """Set the autoindent flag, checking for readline support. | |
1480 |
|
1492 | |||
1481 | If called with no arguments, it acts as a toggle.""" |
|
1493 | If called with no arguments, it acts as a toggle.""" | |
1482 |
|
1494 | |||
1483 | if not self.has_readline: |
|
1495 | if not self.has_readline: | |
1484 | if os.name == 'posix': |
|
1496 | if os.name == 'posix': | |
1485 | warn("The auto-indent feature requires the readline library") |
|
1497 | warn("The auto-indent feature requires the readline library") | |
1486 | self.autoindent = 0 |
|
1498 | self.autoindent = 0 | |
1487 | return |
|
1499 | return | |
1488 | if value is None: |
|
1500 | if value is None: | |
1489 | self.autoindent = not self.autoindent |
|
1501 | self.autoindent = not self.autoindent | |
1490 | else: |
|
1502 | else: | |
1491 | self.autoindent = value |
|
1503 | self.autoindent = value | |
1492 |
|
1504 | |||
1493 | def atexit_operations(self): |
|
1505 | def atexit_operations(self): | |
1494 | """This will be executed at the time of exit. |
|
1506 | """This will be executed at the time of exit. | |
1495 |
|
1507 | |||
1496 | Saving of persistent data should be performed here. """ |
|
1508 | Saving of persistent data should be performed here. """ | |
1497 |
|
1509 | |||
1498 | #print '*** IPython exit cleanup ***' # dbg |
|
1510 | #print '*** IPython exit cleanup ***' # dbg | |
1499 | # input history |
|
1511 | # input history | |
1500 | self.savehist() |
|
1512 | self.savehist() | |
1501 |
|
1513 | |||
1502 | # Cleanup all tempfiles left around |
|
1514 | # Cleanup all tempfiles left around | |
1503 | for tfile in self.tempfiles: |
|
1515 | for tfile in self.tempfiles: | |
1504 | try: |
|
1516 | try: | |
1505 | os.unlink(tfile) |
|
1517 | os.unlink(tfile) | |
1506 | except OSError: |
|
1518 | except OSError: | |
1507 | pass |
|
1519 | pass | |
1508 |
|
1520 | |||
1509 | # Clear all user namespaces to release all references cleanly. |
|
1521 | # Clear all user namespaces to release all references cleanly. | |
1510 | self.reset() |
|
1522 | self.reset() | |
1511 |
|
1523 | |||
1512 | # Run user hooks |
|
1524 | # Run user hooks | |
1513 | self.hooks.shutdown_hook() |
|
1525 | self.hooks.shutdown_hook() | |
1514 |
|
1526 | |||
1515 | def reset(self): |
|
1527 | def reset(self): | |
1516 | """Clear all internal namespaces. |
|
1528 | """Clear all internal namespaces. | |
1517 |
|
1529 | |||
1518 | Note that this is much more aggressive than %reset, since it clears |
|
1530 | Note that this is much more aggressive than %reset, since it clears | |
1519 | fully all namespaces, as well as all input/output lists. |
|
1531 | fully all namespaces, as well as all input/output lists. | |
1520 | """ |
|
1532 | """ | |
1521 | for ns in self.ns_refs_table: |
|
1533 | for ns in self.ns_refs_table: | |
1522 | ns.clear() |
|
1534 | ns.clear() | |
1523 |
|
1535 | |||
1524 | # Clear input and output histories |
|
1536 | # Clear input and output histories | |
1525 | self.input_hist[:] = [] |
|
1537 | self.input_hist[:] = [] | |
1526 | self.input_hist_raw[:] = [] |
|
1538 | self.input_hist_raw[:] = [] | |
1527 | self.output_hist.clear() |
|
1539 | self.output_hist.clear() | |
1528 | # Restore the user namespaces to minimal usability |
|
1540 | # Restore the user namespaces to minimal usability | |
1529 | self.init_namespaces() |
|
1541 | self.init_namespaces() | |
1530 |
|
1542 | |||
1531 | def savehist(self): |
|
1543 | def savehist(self): | |
1532 | """Save input history to a file (via readline library).""" |
|
1544 | """Save input history to a file (via readline library).""" | |
1533 |
|
1545 | |||
1534 | if not self.has_readline: |
|
1546 | if not self.has_readline: | |
1535 | return |
|
1547 | return | |
1536 |
|
1548 | |||
1537 | try: |
|
1549 | try: | |
1538 | self.readline.write_history_file(self.histfile) |
|
1550 | self.readline.write_history_file(self.histfile) | |
1539 | except: |
|
1551 | except: | |
1540 | print 'Unable to save IPython command history to file: ' + \ |
|
1552 | print 'Unable to save IPython command history to file: ' + \ | |
1541 | `self.histfile` |
|
1553 | `self.histfile` | |
1542 |
|
1554 | |||
1543 | def reloadhist(self): |
|
1555 | def reloadhist(self): | |
1544 | """Reload the input history from disk file.""" |
|
1556 | """Reload the input history from disk file.""" | |
1545 |
|
1557 | |||
1546 | if self.has_readline: |
|
1558 | if self.has_readline: | |
1547 | try: |
|
1559 | try: | |
1548 | self.readline.clear_history() |
|
1560 | self.readline.clear_history() | |
1549 | self.readline.read_history_file(self.shell.histfile) |
|
1561 | self.readline.read_history_file(self.shell.histfile) | |
1550 | except AttributeError: |
|
1562 | except AttributeError: | |
1551 | pass |
|
1563 | pass | |
1552 |
|
1564 | |||
1553 |
|
1565 | |||
1554 | def history_saving_wrapper(self, func): |
|
1566 | def history_saving_wrapper(self, func): | |
1555 | """ Wrap func for readline history saving |
|
1567 | """ Wrap func for readline history saving | |
1556 |
|
1568 | |||
1557 | Convert func into callable that saves & restores |
|
1569 | Convert func into callable that saves & restores | |
1558 | history around the call """ |
|
1570 | history around the call """ | |
1559 |
|
1571 | |||
1560 | if not self.has_readline: |
|
1572 | if not self.has_readline: | |
1561 | return func |
|
1573 | return func | |
1562 |
|
1574 | |||
1563 | def wrapper(): |
|
1575 | def wrapper(): | |
1564 | self.savehist() |
|
1576 | self.savehist() | |
1565 | try: |
|
1577 | try: | |
1566 | func() |
|
1578 | func() | |
1567 | finally: |
|
1579 | finally: | |
1568 | readline.read_history_file(self.histfile) |
|
1580 | readline.read_history_file(self.histfile) | |
1569 | return wrapper |
|
1581 | return wrapper | |
1570 |
|
1582 | |||
1571 | def pre_readline(self): |
|
1583 | def pre_readline(self): | |
1572 | """readline hook to be used at the start of each line. |
|
1584 | """readline hook to be used at the start of each line. | |
1573 |
|
1585 | |||
1574 | Currently it handles auto-indent only.""" |
|
1586 | Currently it handles auto-indent only.""" | |
1575 |
|
1587 | |||
1576 | #debugx('self.indent_current_nsp','pre_readline:') |
|
1588 | #debugx('self.indent_current_nsp','pre_readline:') | |
1577 |
|
1589 | |||
1578 | if self.rl_do_indent: |
|
1590 | if self.rl_do_indent: | |
1579 | self.readline.insert_text(self.indent_current_str()) |
|
1591 | self.readline.insert_text(self.indent_current_str()) | |
1580 | if self.rl_next_input is not None: |
|
1592 | if self.rl_next_input is not None: | |
1581 | self.readline.insert_text(self.rl_next_input) |
|
1593 | self.readline.insert_text(self.rl_next_input) | |
1582 | self.rl_next_input = None |
|
1594 | self.rl_next_input = None | |
1583 |
|
1595 | |||
1584 | def ask_yes_no(self,prompt,default=True): |
|
1596 | def ask_yes_no(self,prompt,default=True): | |
1585 | if self.quiet: |
|
1597 | if self.quiet: | |
1586 | return True |
|
1598 | return True | |
1587 | return ask_yes_no(prompt,default) |
|
1599 | return ask_yes_no(prompt,default) | |
1588 |
|
1600 | |||
1589 | def new_main_mod(self,ns=None): |
|
1601 | def new_main_mod(self,ns=None): | |
1590 | """Return a new 'main' module object for user code execution. |
|
1602 | """Return a new 'main' module object for user code execution. | |
1591 | """ |
|
1603 | """ | |
1592 | main_mod = self._user_main_module |
|
1604 | main_mod = self._user_main_module | |
1593 | init_fakemod_dict(main_mod,ns) |
|
1605 | init_fakemod_dict(main_mod,ns) | |
1594 | return main_mod |
|
1606 | return main_mod | |
1595 |
|
1607 | |||
1596 | def cache_main_mod(self,ns,fname): |
|
1608 | def cache_main_mod(self,ns,fname): | |
1597 | """Cache a main module's namespace. |
|
1609 | """Cache a main module's namespace. | |
1598 |
|
1610 | |||
1599 | When scripts are executed via %run, we must keep a reference to the |
|
1611 | When scripts are executed via %run, we must keep a reference to the | |
1600 | namespace of their __main__ module (a FakeModule instance) around so |
|
1612 | namespace of their __main__ module (a FakeModule instance) around so | |
1601 | that Python doesn't clear it, rendering objects defined therein |
|
1613 | that Python doesn't clear it, rendering objects defined therein | |
1602 | useless. |
|
1614 | useless. | |
1603 |
|
1615 | |||
1604 | This method keeps said reference in a private dict, keyed by the |
|
1616 | This method keeps said reference in a private dict, keyed by the | |
1605 | absolute path of the module object (which corresponds to the script |
|
1617 | absolute path of the module object (which corresponds to the script | |
1606 | path). This way, for multiple executions of the same script we only |
|
1618 | path). This way, for multiple executions of the same script we only | |
1607 | keep one copy of the namespace (the last one), thus preventing memory |
|
1619 | keep one copy of the namespace (the last one), thus preventing memory | |
1608 | leaks from old references while allowing the objects from the last |
|
1620 | leaks from old references while allowing the objects from the last | |
1609 | execution to be accessible. |
|
1621 | execution to be accessible. | |
1610 |
|
1622 | |||
1611 | Note: we can not allow the actual FakeModule instances to be deleted, |
|
1623 | Note: we can not allow the actual FakeModule instances to be deleted, | |
1612 | because of how Python tears down modules (it hard-sets all their |
|
1624 | because of how Python tears down modules (it hard-sets all their | |
1613 | references to None without regard for reference counts). This method |
|
1625 | references to None without regard for reference counts). This method | |
1614 | must therefore make a *copy* of the given namespace, to allow the |
|
1626 | must therefore make a *copy* of the given namespace, to allow the | |
1615 | original module's __dict__ to be cleared and reused. |
|
1627 | original module's __dict__ to be cleared and reused. | |
1616 |
|
1628 | |||
1617 |
|
1629 | |||
1618 | Parameters |
|
1630 | Parameters | |
1619 | ---------- |
|
1631 | ---------- | |
1620 | ns : a namespace (a dict, typically) |
|
1632 | ns : a namespace (a dict, typically) | |
1621 |
|
1633 | |||
1622 | fname : str |
|
1634 | fname : str | |
1623 | Filename associated with the namespace. |
|
1635 | Filename associated with the namespace. | |
1624 |
|
1636 | |||
1625 | Examples |
|
1637 | Examples | |
1626 | -------- |
|
1638 | -------- | |
1627 |
|
1639 | |||
1628 | In [10]: import IPython |
|
1640 | In [10]: import IPython | |
1629 |
|
1641 | |||
1630 | In [11]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) |
|
1642 | In [11]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) | |
1631 |
|
1643 | |||
1632 | In [12]: IPython.__file__ in _ip._main_ns_cache |
|
1644 | In [12]: IPython.__file__ in _ip._main_ns_cache | |
1633 | Out[12]: True |
|
1645 | Out[12]: True | |
1634 | """ |
|
1646 | """ | |
1635 | self._main_ns_cache[os.path.abspath(fname)] = ns.copy() |
|
1647 | self._main_ns_cache[os.path.abspath(fname)] = ns.copy() | |
1636 |
|
1648 | |||
1637 | def clear_main_mod_cache(self): |
|
1649 | def clear_main_mod_cache(self): | |
1638 | """Clear the cache of main modules. |
|
1650 | """Clear the cache of main modules. | |
1639 |
|
1651 | |||
1640 | Mainly for use by utilities like %reset. |
|
1652 | Mainly for use by utilities like %reset. | |
1641 |
|
1653 | |||
1642 | Examples |
|
1654 | Examples | |
1643 | -------- |
|
1655 | -------- | |
1644 |
|
1656 | |||
1645 | In [15]: import IPython |
|
1657 | In [15]: import IPython | |
1646 |
|
1658 | |||
1647 | In [16]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) |
|
1659 | In [16]: _ip.cache_main_mod(IPython.__dict__,IPython.__file__) | |
1648 |
|
1660 | |||
1649 | In [17]: len(_ip._main_ns_cache) > 0 |
|
1661 | In [17]: len(_ip._main_ns_cache) > 0 | |
1650 | Out[17]: True |
|
1662 | Out[17]: True | |
1651 |
|
1663 | |||
1652 | In [18]: _ip.clear_main_mod_cache() |
|
1664 | In [18]: _ip.clear_main_mod_cache() | |
1653 |
|
1665 | |||
1654 | In [19]: len(_ip._main_ns_cache) == 0 |
|
1666 | In [19]: len(_ip._main_ns_cache) == 0 | |
1655 | Out[19]: True |
|
1667 | Out[19]: True | |
1656 | """ |
|
1668 | """ | |
1657 | self._main_ns_cache.clear() |
|
1669 | self._main_ns_cache.clear() | |
1658 |
|
1670 | |||
1659 | def _should_recompile(self,e): |
|
1671 | def _should_recompile(self,e): | |
1660 | """Utility routine for edit_syntax_error""" |
|
1672 | """Utility routine for edit_syntax_error""" | |
1661 |
|
1673 | |||
1662 | if e.filename in ('<ipython console>','<input>','<string>', |
|
1674 | if e.filename in ('<ipython console>','<input>','<string>', | |
1663 | '<console>','<BackgroundJob compilation>', |
|
1675 | '<console>','<BackgroundJob compilation>', | |
1664 | None): |
|
1676 | None): | |
1665 |
|
1677 | |||
1666 | return False |
|
1678 | return False | |
1667 | try: |
|
1679 | try: | |
1668 | if (self.autoedit_syntax and |
|
1680 | if (self.autoedit_syntax and | |
1669 | not self.ask_yes_no('Return to editor to correct syntax error? ' |
|
1681 | not self.ask_yes_no('Return to editor to correct syntax error? ' | |
1670 | '[Y/n] ','y')): |
|
1682 | '[Y/n] ','y')): | |
1671 | return False |
|
1683 | return False | |
1672 | except EOFError: |
|
1684 | except EOFError: | |
1673 | return False |
|
1685 | return False | |
1674 |
|
1686 | |||
1675 | def int0(x): |
|
1687 | def int0(x): | |
1676 | try: |
|
1688 | try: | |
1677 | return int(x) |
|
1689 | return int(x) | |
1678 | except TypeError: |
|
1690 | except TypeError: | |
1679 | return 0 |
|
1691 | return 0 | |
1680 | # always pass integer line and offset values to editor hook |
|
1692 | # always pass integer line and offset values to editor hook | |
1681 | try: |
|
1693 | try: | |
1682 | self.hooks.fix_error_editor(e.filename, |
|
1694 | self.hooks.fix_error_editor(e.filename, | |
1683 | int0(e.lineno),int0(e.offset),e.msg) |
|
1695 | int0(e.lineno),int0(e.offset),e.msg) | |
1684 | except TryNext: |
|
1696 | except TryNext: | |
1685 | warn('Could not open editor') |
|
1697 | warn('Could not open editor') | |
1686 | return False |
|
1698 | return False | |
1687 | return True |
|
1699 | return True | |
1688 |
|
1700 | |||
1689 | def edit_syntax_error(self): |
|
1701 | def edit_syntax_error(self): | |
1690 | """The bottom half of the syntax error handler called in the main loop. |
|
1702 | """The bottom half of the syntax error handler called in the main loop. | |
1691 |
|
1703 | |||
1692 | Loop until syntax error is fixed or user cancels. |
|
1704 | Loop until syntax error is fixed or user cancels. | |
1693 | """ |
|
1705 | """ | |
1694 |
|
1706 | |||
1695 | while self.SyntaxTB.last_syntax_error: |
|
1707 | while self.SyntaxTB.last_syntax_error: | |
1696 | # copy and clear last_syntax_error |
|
1708 | # copy and clear last_syntax_error | |
1697 | err = self.SyntaxTB.clear_err_state() |
|
1709 | err = self.SyntaxTB.clear_err_state() | |
1698 | if not self._should_recompile(err): |
|
1710 | if not self._should_recompile(err): | |
1699 | return |
|
1711 | return | |
1700 | try: |
|
1712 | try: | |
1701 | # may set last_syntax_error again if a SyntaxError is raised |
|
1713 | # may set last_syntax_error again if a SyntaxError is raised | |
1702 | self.safe_execfile(err.filename,self.user_ns) |
|
1714 | self.safe_execfile(err.filename,self.user_ns) | |
1703 | except: |
|
1715 | except: | |
1704 | self.showtraceback() |
|
1716 | self.showtraceback() | |
1705 | else: |
|
1717 | else: | |
1706 | try: |
|
1718 | try: | |
1707 | f = file(err.filename) |
|
1719 | f = file(err.filename) | |
1708 | try: |
|
1720 | try: | |
1709 | sys.displayhook(f.read()) |
|
1721 | sys.displayhook(f.read()) | |
1710 | finally: |
|
1722 | finally: | |
1711 | f.close() |
|
1723 | f.close() | |
1712 | except: |
|
1724 | except: | |
1713 | self.showtraceback() |
|
1725 | self.showtraceback() | |
1714 |
|
1726 | |||
1715 | def showsyntaxerror(self, filename=None): |
|
1727 | def showsyntaxerror(self, filename=None): | |
1716 | """Display the syntax error that just occurred. |
|
1728 | """Display the syntax error that just occurred. | |
1717 |
|
1729 | |||
1718 | This doesn't display a stack trace because there isn't one. |
|
1730 | This doesn't display a stack trace because there isn't one. | |
1719 |
|
1731 | |||
1720 | If a filename is given, it is stuffed in the exception instead |
|
1732 | If a filename is given, it is stuffed in the exception instead | |
1721 | of what was there before (because Python's parser always uses |
|
1733 | of what was there before (because Python's parser always uses | |
1722 | "<string>" when reading from a string). |
|
1734 | "<string>" when reading from a string). | |
1723 | """ |
|
1735 | """ | |
1724 | etype, value, last_traceback = sys.exc_info() |
|
1736 | etype, value, last_traceback = sys.exc_info() | |
1725 |
|
1737 | |||
1726 | # See note about these variables in showtraceback() below |
|
1738 | # See note about these variables in showtraceback() below | |
1727 | sys.last_type = etype |
|
1739 | sys.last_type = etype | |
1728 | sys.last_value = value |
|
1740 | sys.last_value = value | |
1729 | sys.last_traceback = last_traceback |
|
1741 | sys.last_traceback = last_traceback | |
1730 |
|
1742 | |||
1731 | if filename and etype is SyntaxError: |
|
1743 | if filename and etype is SyntaxError: | |
1732 | # Work hard to stuff the correct filename in the exception |
|
1744 | # Work hard to stuff the correct filename in the exception | |
1733 | try: |
|
1745 | try: | |
1734 | msg, (dummy_filename, lineno, offset, line) = value |
|
1746 | msg, (dummy_filename, lineno, offset, line) = value | |
1735 | except: |
|
1747 | except: | |
1736 | # Not the format we expect; leave it alone |
|
1748 | # Not the format we expect; leave it alone | |
1737 | pass |
|
1749 | pass | |
1738 | else: |
|
1750 | else: | |
1739 | # Stuff in the right filename |
|
1751 | # Stuff in the right filename | |
1740 | try: |
|
1752 | try: | |
1741 | # Assume SyntaxError is a class exception |
|
1753 | # Assume SyntaxError is a class exception | |
1742 | value = SyntaxError(msg, (filename, lineno, offset, line)) |
|
1754 | value = SyntaxError(msg, (filename, lineno, offset, line)) | |
1743 | except: |
|
1755 | except: | |
1744 | # If that failed, assume SyntaxError is a string |
|
1756 | # If that failed, assume SyntaxError is a string | |
1745 | value = msg, (filename, lineno, offset, line) |
|
1757 | value = msg, (filename, lineno, offset, line) | |
1746 | self.SyntaxTB(etype,value,[]) |
|
1758 | self.SyntaxTB(etype,value,[]) | |
1747 |
|
1759 | |||
1748 | def debugger(self,force=False): |
|
1760 | def debugger(self,force=False): | |
1749 | """Call the pydb/pdb debugger. |
|
1761 | """Call the pydb/pdb debugger. | |
1750 |
|
1762 | |||
1751 | Keywords: |
|
1763 | Keywords: | |
1752 |
|
1764 | |||
1753 | - force(False): by default, this routine checks the instance call_pdb |
|
1765 | - force(False): by default, this routine checks the instance call_pdb | |
1754 | flag and does not actually invoke the debugger if the flag is false. |
|
1766 | flag and does not actually invoke the debugger if the flag is false. | |
1755 | The 'force' option forces the debugger to activate even if the flag |
|
1767 | The 'force' option forces the debugger to activate even if the flag | |
1756 | is false. |
|
1768 | is false. | |
1757 | """ |
|
1769 | """ | |
1758 |
|
1770 | |||
1759 | if not (force or self.call_pdb): |
|
1771 | if not (force or self.call_pdb): | |
1760 | return |
|
1772 | return | |
1761 |
|
1773 | |||
1762 | if not hasattr(sys,'last_traceback'): |
|
1774 | if not hasattr(sys,'last_traceback'): | |
1763 | error('No traceback has been produced, nothing to debug.') |
|
1775 | error('No traceback has been produced, nothing to debug.') | |
1764 | return |
|
1776 | return | |
1765 |
|
1777 | |||
1766 | # use pydb if available |
|
1778 | # use pydb if available | |
1767 | if debugger.has_pydb: |
|
1779 | if debugger.has_pydb: | |
1768 | from pydb import pm |
|
1780 | from pydb import pm | |
1769 | else: |
|
1781 | else: | |
1770 | # fallback to our internal debugger |
|
1782 | # fallback to our internal debugger | |
1771 | pm = lambda : self.InteractiveTB.debugger(force=True) |
|
1783 | pm = lambda : self.InteractiveTB.debugger(force=True) | |
1772 | self.history_saving_wrapper(pm)() |
|
1784 | self.history_saving_wrapper(pm)() | |
1773 |
|
1785 | |||
1774 | def showtraceback(self,exc_tuple = None,filename=None,tb_offset=None): |
|
1786 | def showtraceback(self,exc_tuple = None,filename=None,tb_offset=None): | |
1775 | """Display the exception that just occurred. |
|
1787 | """Display the exception that just occurred. | |
1776 |
|
1788 | |||
1777 | If nothing is known about the exception, this is the method which |
|
1789 | If nothing is known about the exception, this is the method which | |
1778 | should be used throughout the code for presenting user tracebacks, |
|
1790 | should be used throughout the code for presenting user tracebacks, | |
1779 | rather than directly invoking the InteractiveTB object. |
|
1791 | rather than directly invoking the InteractiveTB object. | |
1780 |
|
1792 | |||
1781 | A specific showsyntaxerror() also exists, but this method can take |
|
1793 | A specific showsyntaxerror() also exists, but this method can take | |
1782 | care of calling it if needed, so unless you are explicitly catching a |
|
1794 | care of calling it if needed, so unless you are explicitly catching a | |
1783 | SyntaxError exception, don't try to analyze the stack manually and |
|
1795 | SyntaxError exception, don't try to analyze the stack manually and | |
1784 | simply call this method.""" |
|
1796 | simply call this method.""" | |
1785 |
|
1797 | |||
1786 |
|
1798 | |||
1787 | # Though this won't be called by syntax errors in the input line, |
|
1799 | # Though this won't be called by syntax errors in the input line, | |
1788 | # there may be SyntaxError cases whith imported code. |
|
1800 | # there may be SyntaxError cases whith imported code. | |
1789 |
|
1801 | |||
1790 | try: |
|
1802 | try: | |
1791 | if exc_tuple is None: |
|
1803 | if exc_tuple is None: | |
1792 | etype, value, tb = sys.exc_info() |
|
1804 | etype, value, tb = sys.exc_info() | |
1793 | else: |
|
1805 | else: | |
1794 | etype, value, tb = exc_tuple |
|
1806 | etype, value, tb = exc_tuple | |
1795 |
|
1807 | |||
1796 | if etype is SyntaxError: |
|
1808 | if etype is SyntaxError: | |
1797 | self.showsyntaxerror(filename) |
|
1809 | self.showsyntaxerror(filename) | |
1798 | elif etype is UsageError: |
|
1810 | elif etype is UsageError: | |
1799 | print "UsageError:", value |
|
1811 | print "UsageError:", value | |
1800 | else: |
|
1812 | else: | |
1801 | # WARNING: these variables are somewhat deprecated and not |
|
1813 | # WARNING: these variables are somewhat deprecated and not | |
1802 | # necessarily safe to use in a threaded environment, but tools |
|
1814 | # necessarily safe to use in a threaded environment, but tools | |
1803 | # like pdb depend on their existence, so let's set them. If we |
|
1815 | # like pdb depend on their existence, so let's set them. If we | |
1804 | # find problems in the field, we'll need to revisit their use. |
|
1816 | # find problems in the field, we'll need to revisit their use. | |
1805 | sys.last_type = etype |
|
1817 | sys.last_type = etype | |
1806 | sys.last_value = value |
|
1818 | sys.last_value = value | |
1807 | sys.last_traceback = tb |
|
1819 | sys.last_traceback = tb | |
1808 |
|
1820 | |||
1809 | if etype in self.custom_exceptions: |
|
1821 | if etype in self.custom_exceptions: | |
1810 | self.CustomTB(etype,value,tb) |
|
1822 | self.CustomTB(etype,value,tb) | |
1811 | else: |
|
1823 | else: | |
1812 | self.InteractiveTB(etype,value,tb,tb_offset=tb_offset) |
|
1824 | self.InteractiveTB(etype,value,tb,tb_offset=tb_offset) | |
1813 | if self.InteractiveTB.call_pdb and self.has_readline: |
|
1825 | if self.InteractiveTB.call_pdb and self.has_readline: | |
1814 | # pdb mucks up readline, fix it back |
|
1826 | # pdb mucks up readline, fix it back | |
1815 | self.set_completer() |
|
1827 | self.set_completer() | |
1816 | except KeyboardInterrupt: |
|
1828 | except KeyboardInterrupt: | |
1817 | self.write("\nKeyboardInterrupt\n") |
|
1829 | self.write("\nKeyboardInterrupt\n") | |
1818 |
|
1830 | |||
1819 | def mainloop(self, banner=None): |
|
1831 | def mainloop(self, banner=None): | |
1820 | """Start the mainloop. |
|
1832 | """Start the mainloop. | |
1821 |
|
1833 | |||
1822 | If an optional banner argument is given, it will override the |
|
1834 | If an optional banner argument is given, it will override the | |
1823 | internally created default banner. |
|
1835 | internally created default banner. | |
1824 | """ |
|
1836 | """ | |
1825 | if self.c: # Emulate Python's -c option |
|
1837 | if self.c: # Emulate Python's -c option | |
1826 | self.exec_init_cmd() |
|
1838 | self.exec_init_cmd() | |
1827 |
|
1839 | |||
1828 | if self.display_banner: |
|
1840 | if self.display_banner: | |
1829 | if banner is None: |
|
1841 | if banner is None: | |
1830 | banner = self.banner |
|
1842 | banner = self.banner | |
1831 |
|
1843 | |||
1832 | # if you run stuff with -c <cmd>, raw hist is not updated |
|
1844 | # if you run stuff with -c <cmd>, raw hist is not updated | |
1833 | # ensure that it's in sync |
|
1845 | # ensure that it's in sync | |
1834 | if len(self.input_hist) != len (self.input_hist_raw): |
|
1846 | if len(self.input_hist) != len (self.input_hist_raw): | |
1835 | self.input_hist_raw = InputList(self.input_hist) |
|
1847 | self.input_hist_raw = InputList(self.input_hist) | |
1836 |
|
1848 | |||
1837 | while 1: |
|
1849 | while 1: | |
1838 | try: |
|
1850 | try: | |
1839 | self.interact() |
|
1851 | self.interact() | |
1840 | #self.interact_with_readline() |
|
1852 | #self.interact_with_readline() | |
1841 | # XXX for testing of a readline-decoupled repl loop, call |
|
1853 | # XXX for testing of a readline-decoupled repl loop, call | |
1842 | # interact_with_readline above |
|
1854 | # interact_with_readline above | |
1843 | break |
|
1855 | break | |
1844 | except KeyboardInterrupt: |
|
1856 | except KeyboardInterrupt: | |
1845 | # this should not be necessary, but KeyboardInterrupt |
|
1857 | # this should not be necessary, but KeyboardInterrupt | |
1846 | # handling seems rather unpredictable... |
|
1858 | # handling seems rather unpredictable... | |
1847 | self.write("\nKeyboardInterrupt in interact()\n") |
|
1859 | self.write("\nKeyboardInterrupt in interact()\n") | |
1848 |
|
1860 | |||
1849 | def exec_init_cmd(self): |
|
1861 | def exec_init_cmd(self): | |
1850 | """Execute a command given at the command line. |
|
1862 | """Execute a command given at the command line. | |
1851 |
|
1863 | |||
1852 | This emulates Python's -c option.""" |
|
1864 | This emulates Python's -c option.""" | |
1853 |
|
1865 | |||
1854 | #sys.argv = ['-c'] |
|
1866 | #sys.argv = ['-c'] | |
1855 | self.push_line(self.prefilter(self.c, False)) |
|
1867 | self.push_line(self.prefilter(self.c, False)) | |
1856 | if not self.interactive: |
|
1868 | if not self.interactive: | |
1857 | self.ask_exit() |
|
1869 | self.ask_exit() | |
1858 |
|
1870 | |||
1859 | def embed_mainloop(self,header='',local_ns=None,global_ns=None,stack_depth=0): |
|
1871 | def embed_mainloop(self,header='',local_ns=None,global_ns=None,stack_depth=0): | |
1860 | """Embeds IPython into a running python program. |
|
1872 | """Embeds IPython into a running python program. | |
1861 |
|
1873 | |||
1862 | Input: |
|
1874 | Input: | |
1863 |
|
1875 | |||
1864 | - header: An optional header message can be specified. |
|
1876 | - header: An optional header message can be specified. | |
1865 |
|
1877 | |||
1866 | - local_ns, global_ns: working namespaces. If given as None, the |
|
1878 | - local_ns, global_ns: working namespaces. If given as None, the | |
1867 | IPython-initialized one is updated with __main__.__dict__, so that |
|
1879 | IPython-initialized one is updated with __main__.__dict__, so that | |
1868 | program variables become visible but user-specific configuration |
|
1880 | program variables become visible but user-specific configuration | |
1869 | remains possible. |
|
1881 | remains possible. | |
1870 |
|
1882 | |||
1871 | - stack_depth: specifies how many levels in the stack to go to |
|
1883 | - stack_depth: specifies how many levels in the stack to go to | |
1872 | looking for namespaces (when local_ns and global_ns are None). This |
|
1884 | looking for namespaces (when local_ns and global_ns are None). This | |
1873 | allows an intermediate caller to make sure that this function gets |
|
1885 | allows an intermediate caller to make sure that this function gets | |
1874 | the namespace from the intended level in the stack. By default (0) |
|
1886 | the namespace from the intended level in the stack. By default (0) | |
1875 | it will get its locals and globals from the immediate caller. |
|
1887 | it will get its locals and globals from the immediate caller. | |
1876 |
|
1888 | |||
1877 | Warning: it's possible to use this in a program which is being run by |
|
1889 | Warning: it's possible to use this in a program which is being run by | |
1878 | IPython itself (via %run), but some funny things will happen (a few |
|
1890 | IPython itself (via %run), but some funny things will happen (a few | |
1879 | globals get overwritten). In the future this will be cleaned up, as |
|
1891 | globals get overwritten). In the future this will be cleaned up, as | |
1880 | there is no fundamental reason why it can't work perfectly.""" |
|
1892 | there is no fundamental reason why it can't work perfectly.""" | |
1881 |
|
1893 | |||
1882 | # Get locals and globals from caller |
|
1894 | # Get locals and globals from caller | |
1883 | if local_ns is None or global_ns is None: |
|
1895 | if local_ns is None or global_ns is None: | |
1884 | call_frame = sys._getframe(stack_depth).f_back |
|
1896 | call_frame = sys._getframe(stack_depth).f_back | |
1885 |
|
1897 | |||
1886 | if local_ns is None: |
|
1898 | if local_ns is None: | |
1887 | local_ns = call_frame.f_locals |
|
1899 | local_ns = call_frame.f_locals | |
1888 | if global_ns is None: |
|
1900 | if global_ns is None: | |
1889 | global_ns = call_frame.f_globals |
|
1901 | global_ns = call_frame.f_globals | |
1890 |
|
1902 | |||
1891 | # Update namespaces and fire up interpreter |
|
1903 | # Update namespaces and fire up interpreter | |
1892 |
|
1904 | |||
1893 | # The global one is easy, we can just throw it in |
|
1905 | # The global one is easy, we can just throw it in | |
1894 | self.user_global_ns = global_ns |
|
1906 | self.user_global_ns = global_ns | |
1895 |
|
1907 | |||
1896 | # but the user/local one is tricky: ipython needs it to store internal |
|
1908 | # but the user/local one is tricky: ipython needs it to store internal | |
1897 | # data, but we also need the locals. We'll copy locals in the user |
|
1909 | # data, but we also need the locals. We'll copy locals in the user | |
1898 | # one, but will track what got copied so we can delete them at exit. |
|
1910 | # one, but will track what got copied so we can delete them at exit. | |
1899 | # This is so that a later embedded call doesn't see locals from a |
|
1911 | # This is so that a later embedded call doesn't see locals from a | |
1900 | # previous call (which most likely existed in a separate scope). |
|
1912 | # previous call (which most likely existed in a separate scope). | |
1901 | local_varnames = local_ns.keys() |
|
1913 | local_varnames = local_ns.keys() | |
1902 | self.user_ns.update(local_ns) |
|
1914 | self.user_ns.update(local_ns) | |
1903 | #self.user_ns['local_ns'] = local_ns # dbg |
|
1915 | #self.user_ns['local_ns'] = local_ns # dbg | |
1904 |
|
1916 | |||
1905 | # Patch for global embedding to make sure that things don't overwrite |
|
1917 | # Patch for global embedding to make sure that things don't overwrite | |
1906 | # user globals accidentally. Thanks to Richard <rxe@renre-europe.com> |
|
1918 | # user globals accidentally. Thanks to Richard <rxe@renre-europe.com> | |
1907 | # FIXME. Test this a bit more carefully (the if.. is new) |
|
1919 | # FIXME. Test this a bit more carefully (the if.. is new) | |
1908 | if local_ns is None and global_ns is None: |
|
1920 | if local_ns is None and global_ns is None: | |
1909 | self.user_global_ns.update(__main__.__dict__) |
|
1921 | self.user_global_ns.update(__main__.__dict__) | |
1910 |
|
1922 | |||
1911 | # make sure the tab-completer has the correct frame information, so it |
|
1923 | # make sure the tab-completer has the correct frame information, so it | |
1912 | # actually completes using the frame's locals/globals |
|
1924 | # actually completes using the frame's locals/globals | |
1913 | self.set_completer_frame() |
|
1925 | self.set_completer_frame() | |
1914 |
|
1926 | |||
1915 | # before activating the interactive mode, we need to make sure that |
|
1927 | # before activating the interactive mode, we need to make sure that | |
1916 | # all names in the builtin namespace needed by ipython point to |
|
1928 | # all names in the builtin namespace needed by ipython point to | |
1917 | # ourselves, and not to other instances. |
|
1929 | # ourselves, and not to other instances. | |
1918 | self.add_builtins() |
|
1930 | self.add_builtins() | |
1919 |
|
1931 | |||
1920 | self.interact(header) |
|
1932 | self.interact(header) | |
1921 |
|
1933 | |||
1922 | # now, purge out the user namespace from anything we might have added |
|
1934 | # now, purge out the user namespace from anything we might have added | |
1923 | # from the caller's local namespace |
|
1935 | # from the caller's local namespace | |
1924 | delvar = self.user_ns.pop |
|
1936 | delvar = self.user_ns.pop | |
1925 | for var in local_varnames: |
|
1937 | for var in local_varnames: | |
1926 | delvar(var,None) |
|
1938 | delvar(var,None) | |
1927 | # and clean builtins we may have overridden |
|
1939 | # and clean builtins we may have overridden | |
1928 | self.clean_builtins() |
|
1940 | self.clean_builtins() | |
1929 |
|
1941 | |||
1930 | def interact_prompt(self): |
|
1942 | def interact_prompt(self): | |
1931 | """ Print the prompt (in read-eval-print loop) |
|
1943 | """ Print the prompt (in read-eval-print loop) | |
1932 |
|
1944 | |||
1933 | Provided for those who want to implement their own read-eval-print loop (e.g. GUIs), not |
|
1945 | Provided for those who want to implement their own read-eval-print loop (e.g. GUIs), not | |
1934 | used in standard IPython flow. |
|
1946 | used in standard IPython flow. | |
1935 | """ |
|
1947 | """ | |
1936 | if self.more: |
|
1948 | if self.more: | |
1937 | try: |
|
1949 | try: | |
1938 | prompt = self.hooks.generate_prompt(True) |
|
1950 | prompt = self.hooks.generate_prompt(True) | |
1939 | except: |
|
1951 | except: | |
1940 | self.showtraceback() |
|
1952 | self.showtraceback() | |
1941 | if self.autoindent: |
|
1953 | if self.autoindent: | |
1942 | self.rl_do_indent = True |
|
1954 | self.rl_do_indent = True | |
1943 |
|
1955 | |||
1944 | else: |
|
1956 | else: | |
1945 | try: |
|
1957 | try: | |
1946 | prompt = self.hooks.generate_prompt(False) |
|
1958 | prompt = self.hooks.generate_prompt(False) | |
1947 | except: |
|
1959 | except: | |
1948 | self.showtraceback() |
|
1960 | self.showtraceback() | |
1949 | self.write(prompt) |
|
1961 | self.write(prompt) | |
1950 |
|
1962 | |||
1951 | def interact_handle_input(self,line): |
|
1963 | def interact_handle_input(self,line): | |
1952 | """ Handle the input line (in read-eval-print loop) |
|
1964 | """ Handle the input line (in read-eval-print loop) | |
1953 |
|
1965 | |||
1954 | Provided for those who want to implement their own read-eval-print loop (e.g. GUIs), not |
|
1966 | Provided for those who want to implement their own read-eval-print loop (e.g. GUIs), not | |
1955 | used in standard IPython flow. |
|
1967 | used in standard IPython flow. | |
1956 | """ |
|
1968 | """ | |
1957 | if line.lstrip() == line: |
|
1969 | if line.lstrip() == line: | |
1958 | self.shadowhist.add(line.strip()) |
|
1970 | self.shadowhist.add(line.strip()) | |
1959 | lineout = self.prefilter(line,self.more) |
|
1971 | lineout = self.prefilter(line,self.more) | |
1960 |
|
1972 | |||
1961 | if line.strip(): |
|
1973 | if line.strip(): | |
1962 | if self.more: |
|
1974 | if self.more: | |
1963 | self.input_hist_raw[-1] += '%s\n' % line |
|
1975 | self.input_hist_raw[-1] += '%s\n' % line | |
1964 | else: |
|
1976 | else: | |
1965 | self.input_hist_raw.append('%s\n' % line) |
|
1977 | self.input_hist_raw.append('%s\n' % line) | |
1966 |
|
1978 | |||
1967 |
|
1979 | |||
1968 | self.more = self.push_line(lineout) |
|
1980 | self.more = self.push_line(lineout) | |
1969 | if (self.SyntaxTB.last_syntax_error and |
|
1981 | if (self.SyntaxTB.last_syntax_error and | |
1970 | self.autoedit_syntax): |
|
1982 | self.autoedit_syntax): | |
1971 | self.edit_syntax_error() |
|
1983 | self.edit_syntax_error() | |
1972 |
|
1984 | |||
1973 | def interact_with_readline(self): |
|
1985 | def interact_with_readline(self): | |
1974 | """ Demo of using interact_handle_input, interact_prompt |
|
1986 | """ Demo of using interact_handle_input, interact_prompt | |
1975 |
|
1987 | |||
1976 | This is the main read-eval-print loop. If you need to implement your own (e.g. for GUI), |
|
1988 | This is the main read-eval-print loop. If you need to implement your own (e.g. for GUI), | |
1977 | it should work like this. |
|
1989 | it should work like this. | |
1978 | """ |
|
1990 | """ | |
1979 | self.readline_startup_hook(self.pre_readline) |
|
1991 | self.readline_startup_hook(self.pre_readline) | |
1980 | while not self.exit_now: |
|
1992 | while not self.exit_now: | |
1981 | self.interact_prompt() |
|
1993 | self.interact_prompt() | |
1982 | if self.more: |
|
1994 | if self.more: | |
1983 | self.rl_do_indent = True |
|
1995 | self.rl_do_indent = True | |
1984 | else: |
|
1996 | else: | |
1985 | self.rl_do_indent = False |
|
1997 | self.rl_do_indent = False | |
1986 | line = raw_input_original().decode(self.stdin_encoding) |
|
1998 | line = raw_input_original().decode(self.stdin_encoding) | |
1987 | self.interact_handle_input(line) |
|
1999 | self.interact_handle_input(line) | |
1988 |
|
2000 | |||
1989 | def interact(self, banner=None): |
|
2001 | def interact(self, banner=None): | |
1990 | """Closely emulate the interactive Python console.""" |
|
2002 | """Closely emulate the interactive Python console.""" | |
1991 |
|
2003 | |||
1992 | # batch run -> do not interact |
|
2004 | # batch run -> do not interact | |
1993 | if self.exit_now: |
|
2005 | if self.exit_now: | |
1994 | return |
|
2006 | return | |
1995 |
|
2007 | |||
1996 | if self.display_banner: |
|
2008 | if self.display_banner: | |
1997 | if banner is None: |
|
2009 | if banner is None: | |
1998 | banner = self.banner |
|
2010 | banner = self.banner | |
1999 | self.write(banner) |
|
2011 | self.write(banner) | |
2000 |
|
2012 | |||
2001 | more = 0 |
|
2013 | more = 0 | |
2002 |
|
2014 | |||
2003 | # Mark activity in the builtins |
|
2015 | # Mark activity in the builtins | |
2004 | __builtin__.__dict__['__IPYTHON__active'] += 1 |
|
2016 | __builtin__.__dict__['__IPYTHON__active'] += 1 | |
2005 |
|
2017 | |||
2006 | if self.has_readline: |
|
2018 | if self.has_readline: | |
2007 | self.readline_startup_hook(self.pre_readline) |
|
2019 | self.readline_startup_hook(self.pre_readline) | |
2008 | # exit_now is set by a call to %Exit or %Quit, through the |
|
2020 | # exit_now is set by a call to %Exit or %Quit, through the | |
2009 | # ask_exit callback. |
|
2021 | # ask_exit callback. | |
2010 |
|
2022 | |||
2011 | while not self.exit_now: |
|
2023 | while not self.exit_now: | |
2012 | self.hooks.pre_prompt_hook() |
|
2024 | self.hooks.pre_prompt_hook() | |
2013 | if more: |
|
2025 | if more: | |
2014 | try: |
|
2026 | try: | |
2015 | prompt = self.hooks.generate_prompt(True) |
|
2027 | prompt = self.hooks.generate_prompt(True) | |
2016 | except: |
|
2028 | except: | |
2017 | self.showtraceback() |
|
2029 | self.showtraceback() | |
2018 | if self.autoindent: |
|
2030 | if self.autoindent: | |
2019 | self.rl_do_indent = True |
|
2031 | self.rl_do_indent = True | |
2020 |
|
2032 | |||
2021 | else: |
|
2033 | else: | |
2022 | try: |
|
2034 | try: | |
2023 | prompt = self.hooks.generate_prompt(False) |
|
2035 | prompt = self.hooks.generate_prompt(False) | |
2024 | except: |
|
2036 | except: | |
2025 | self.showtraceback() |
|
2037 | self.showtraceback() | |
2026 | try: |
|
2038 | try: | |
2027 | line = self.raw_input(prompt, more) |
|
2039 | line = self.raw_input(prompt, more) | |
2028 | if self.exit_now: |
|
2040 | if self.exit_now: | |
2029 | # quick exit on sys.std[in|out] close |
|
2041 | # quick exit on sys.std[in|out] close | |
2030 | break |
|
2042 | break | |
2031 | if self.autoindent: |
|
2043 | if self.autoindent: | |
2032 | self.rl_do_indent = False |
|
2044 | self.rl_do_indent = False | |
2033 |
|
2045 | |||
2034 | except KeyboardInterrupt: |
|
2046 | except KeyboardInterrupt: | |
2035 | #double-guard against keyboardinterrupts during kbdint handling |
|
2047 | #double-guard against keyboardinterrupts during kbdint handling | |
2036 | try: |
|
2048 | try: | |
2037 | self.write('\nKeyboardInterrupt\n') |
|
2049 | self.write('\nKeyboardInterrupt\n') | |
2038 | self.resetbuffer() |
|
2050 | self.resetbuffer() | |
2039 | # keep cache in sync with the prompt counter: |
|
2051 | # keep cache in sync with the prompt counter: | |
2040 | self.outputcache.prompt_count -= 1 |
|
2052 | self.outputcache.prompt_count -= 1 | |
2041 |
|
2053 | |||
2042 | if self.autoindent: |
|
2054 | if self.autoindent: | |
2043 | self.indent_current_nsp = 0 |
|
2055 | self.indent_current_nsp = 0 | |
2044 | more = 0 |
|
2056 | more = 0 | |
2045 | except KeyboardInterrupt: |
|
2057 | except KeyboardInterrupt: | |
2046 | pass |
|
2058 | pass | |
2047 | except EOFError: |
|
2059 | except EOFError: | |
2048 | if self.autoindent: |
|
2060 | if self.autoindent: | |
2049 | self.rl_do_indent = False |
|
2061 | self.rl_do_indent = False | |
2050 | self.readline_startup_hook(None) |
|
2062 | self.readline_startup_hook(None) | |
2051 | self.write('\n') |
|
2063 | self.write('\n') | |
2052 | self.exit() |
|
2064 | self.exit() | |
2053 | except bdb.BdbQuit: |
|
2065 | except bdb.BdbQuit: | |
2054 | warn('The Python debugger has exited with a BdbQuit exception.\n' |
|
2066 | warn('The Python debugger has exited with a BdbQuit exception.\n' | |
2055 | 'Because of how pdb handles the stack, it is impossible\n' |
|
2067 | 'Because of how pdb handles the stack, it is impossible\n' | |
2056 | 'for IPython to properly format this particular exception.\n' |
|
2068 | 'for IPython to properly format this particular exception.\n' | |
2057 | 'IPython will resume normal operation.') |
|
2069 | 'IPython will resume normal operation.') | |
2058 | except: |
|
2070 | except: | |
2059 | # exceptions here are VERY RARE, but they can be triggered |
|
2071 | # exceptions here are VERY RARE, but they can be triggered | |
2060 | # asynchronously by signal handlers, for example. |
|
2072 | # asynchronously by signal handlers, for example. | |
2061 | self.showtraceback() |
|
2073 | self.showtraceback() | |
2062 | else: |
|
2074 | else: | |
2063 | more = self.push_line(line) |
|
2075 | more = self.push_line(line) | |
2064 | if (self.SyntaxTB.last_syntax_error and |
|
2076 | if (self.SyntaxTB.last_syntax_error and | |
2065 | self.autoedit_syntax): |
|
2077 | self.autoedit_syntax): | |
2066 | self.edit_syntax_error() |
|
2078 | self.edit_syntax_error() | |
2067 |
|
2079 | |||
2068 | # We are off again... |
|
2080 | # We are off again... | |
2069 | __builtin__.__dict__['__IPYTHON__active'] -= 1 |
|
2081 | __builtin__.__dict__['__IPYTHON__active'] -= 1 | |
2070 |
|
2082 | |||
2071 | def excepthook(self, etype, value, tb): |
|
2083 | def excepthook(self, etype, value, tb): | |
2072 | """One more defense for GUI apps that call sys.excepthook. |
|
2084 | """One more defense for GUI apps that call sys.excepthook. | |
2073 |
|
2085 | |||
2074 | GUI frameworks like wxPython trap exceptions and call |
|
2086 | GUI frameworks like wxPython trap exceptions and call | |
2075 | sys.excepthook themselves. I guess this is a feature that |
|
2087 | sys.excepthook themselves. I guess this is a feature that | |
2076 | enables them to keep running after exceptions that would |
|
2088 | enables them to keep running after exceptions that would | |
2077 | otherwise kill their mainloop. This is a bother for IPython |
|
2089 | otherwise kill their mainloop. This is a bother for IPython | |
2078 | which excepts to catch all of the program exceptions with a try: |
|
2090 | which excepts to catch all of the program exceptions with a try: | |
2079 | except: statement. |
|
2091 | except: statement. | |
2080 |
|
2092 | |||
2081 | Normally, IPython sets sys.excepthook to a CrashHandler instance, so if |
|
2093 | Normally, IPython sets sys.excepthook to a CrashHandler instance, so if | |
2082 | any app directly invokes sys.excepthook, it will look to the user like |
|
2094 | any app directly invokes sys.excepthook, it will look to the user like | |
2083 | IPython crashed. In order to work around this, we can disable the |
|
2095 | IPython crashed. In order to work around this, we can disable the | |
2084 | CrashHandler and replace it with this excepthook instead, which prints a |
|
2096 | CrashHandler and replace it with this excepthook instead, which prints a | |
2085 | regular traceback using our InteractiveTB. In this fashion, apps which |
|
2097 | regular traceback using our InteractiveTB. In this fashion, apps which | |
2086 | call sys.excepthook will generate a regular-looking exception from |
|
2098 | call sys.excepthook will generate a regular-looking exception from | |
2087 | IPython, and the CrashHandler will only be triggered by real IPython |
|
2099 | IPython, and the CrashHandler will only be triggered by real IPython | |
2088 | crashes. |
|
2100 | crashes. | |
2089 |
|
2101 | |||
2090 | This hook should be used sparingly, only in places which are not likely |
|
2102 | This hook should be used sparingly, only in places which are not likely | |
2091 | to be true IPython errors. |
|
2103 | to be true IPython errors. | |
2092 | """ |
|
2104 | """ | |
2093 | self.showtraceback((etype,value,tb),tb_offset=0) |
|
2105 | self.showtraceback((etype,value,tb),tb_offset=0) | |
2094 |
|
2106 | |||
2095 | def expand_alias(self, line): |
|
2107 | def expand_alias(self, line): | |
2096 | """ Expand an alias in the command line |
|
2108 | """ Expand an alias in the command line | |
2097 |
|
2109 | |||
2098 | Returns the provided command line, possibly with the first word |
|
2110 | Returns the provided command line, possibly with the first word | |
2099 | (command) translated according to alias expansion rules. |
|
2111 | (command) translated according to alias expansion rules. | |
2100 |
|
2112 | |||
2101 | [ipython]|16> _ip.expand_aliases("np myfile.txt") |
|
2113 | [ipython]|16> _ip.expand_aliases("np myfile.txt") | |
2102 | <16> 'q:/opt/np/notepad++.exe myfile.txt' |
|
2114 | <16> 'q:/opt/np/notepad++.exe myfile.txt' | |
2103 | """ |
|
2115 | """ | |
2104 |
|
2116 | |||
2105 | pre,fn,rest = self.split_user_input(line) |
|
2117 | pre,fn,rest = self.split_user_input(line) | |
2106 | res = pre + self.expand_aliases(fn, rest) |
|
2118 | res = pre + self.expand_aliases(fn, rest) | |
2107 | return res |
|
2119 | return res | |
2108 |
|
2120 | |||
2109 | def expand_aliases(self, fn, rest): |
|
2121 | def expand_aliases(self, fn, rest): | |
2110 | """Expand multiple levels of aliases: |
|
2122 | """Expand multiple levels of aliases: | |
2111 |
|
2123 | |||
2112 | if: |
|
2124 | if: | |
2113 |
|
2125 | |||
2114 | alias foo bar /tmp |
|
2126 | alias foo bar /tmp | |
2115 | alias baz foo |
|
2127 | alias baz foo | |
2116 |
|
2128 | |||
2117 | then: |
|
2129 | then: | |
2118 |
|
2130 | |||
2119 | baz huhhahhei -> bar /tmp huhhahhei |
|
2131 | baz huhhahhei -> bar /tmp huhhahhei | |
2120 |
|
2132 | |||
2121 | """ |
|
2133 | """ | |
2122 | line = fn + " " + rest |
|
2134 | line = fn + " " + rest | |
2123 |
|
2135 | |||
2124 | done = set() |
|
2136 | done = set() | |
2125 | while 1: |
|
2137 | while 1: | |
2126 | pre,fn,rest = prefilter.splitUserInput(line, |
|
2138 | pre,fn,rest = prefilter.splitUserInput(line, | |
2127 | prefilter.shell_line_split) |
|
2139 | prefilter.shell_line_split) | |
2128 | if fn in self.alias_table: |
|
2140 | if fn in self.alias_table: | |
2129 | if fn in done: |
|
2141 | if fn in done: | |
2130 | warn("Cyclic alias definition, repeated '%s'" % fn) |
|
2142 | warn("Cyclic alias definition, repeated '%s'" % fn) | |
2131 | return "" |
|
2143 | return "" | |
2132 | done.add(fn) |
|
2144 | done.add(fn) | |
2133 |
|
2145 | |||
2134 | l2 = self.transform_alias(fn,rest) |
|
2146 | l2 = self.transform_alias(fn,rest) | |
2135 | # dir -> dir |
|
2147 | # dir -> dir | |
2136 | # print "alias",line, "->",l2 #dbg |
|
2148 | # print "alias",line, "->",l2 #dbg | |
2137 | if l2 == line: |
|
2149 | if l2 == line: | |
2138 | break |
|
2150 | break | |
2139 | # ls -> ls -F should not recurse forever |
|
2151 | # ls -> ls -F should not recurse forever | |
2140 | if l2.split(None,1)[0] == line.split(None,1)[0]: |
|
2152 | if l2.split(None,1)[0] == line.split(None,1)[0]: | |
2141 | line = l2 |
|
2153 | line = l2 | |
2142 | break |
|
2154 | break | |
2143 |
|
2155 | |||
2144 | line=l2 |
|
2156 | line=l2 | |
2145 |
|
2157 | |||
2146 |
|
2158 | |||
2147 | # print "al expand to",line #dbg |
|
2159 | # print "al expand to",line #dbg | |
2148 | else: |
|
2160 | else: | |
2149 | break |
|
2161 | break | |
2150 |
|
2162 | |||
2151 | return line |
|
2163 | return line | |
2152 |
|
2164 | |||
2153 | def transform_alias(self, alias,rest=''): |
|
2165 | def transform_alias(self, alias,rest=''): | |
2154 | """ Transform alias to system command string. |
|
2166 | """ Transform alias to system command string. | |
2155 | """ |
|
2167 | """ | |
2156 | trg = self.alias_table[alias] |
|
2168 | trg = self.alias_table[alias] | |
2157 |
|
2169 | |||
2158 | nargs,cmd = trg |
|
2170 | nargs,cmd = trg | |
2159 | # print trg #dbg |
|
2171 | # print trg #dbg | |
2160 | if ' ' in cmd and os.path.isfile(cmd): |
|
2172 | if ' ' in cmd and os.path.isfile(cmd): | |
2161 | cmd = '"%s"' % cmd |
|
2173 | cmd = '"%s"' % cmd | |
2162 |
|
2174 | |||
2163 | # Expand the %l special to be the user's input line |
|
2175 | # Expand the %l special to be the user's input line | |
2164 | if cmd.find('%l') >= 0: |
|
2176 | if cmd.find('%l') >= 0: | |
2165 | cmd = cmd.replace('%l',rest) |
|
2177 | cmd = cmd.replace('%l',rest) | |
2166 | rest = '' |
|
2178 | rest = '' | |
2167 | if nargs==0: |
|
2179 | if nargs==0: | |
2168 | # Simple, argument-less aliases |
|
2180 | # Simple, argument-less aliases | |
2169 | cmd = '%s %s' % (cmd,rest) |
|
2181 | cmd = '%s %s' % (cmd,rest) | |
2170 | else: |
|
2182 | else: | |
2171 | # Handle aliases with positional arguments |
|
2183 | # Handle aliases with positional arguments | |
2172 | args = rest.split(None,nargs) |
|
2184 | args = rest.split(None,nargs) | |
2173 | if len(args)< nargs: |
|
2185 | if len(args)< nargs: | |
2174 | error('Alias <%s> requires %s arguments, %s given.' % |
|
2186 | error('Alias <%s> requires %s arguments, %s given.' % | |
2175 | (alias,nargs,len(args))) |
|
2187 | (alias,nargs,len(args))) | |
2176 | return None |
|
2188 | return None | |
2177 | cmd = '%s %s' % (cmd % tuple(args[:nargs]),' '.join(args[nargs:])) |
|
2189 | cmd = '%s %s' % (cmd % tuple(args[:nargs]),' '.join(args[nargs:])) | |
2178 | # Now call the macro, evaluating in the user's namespace |
|
2190 | # Now call the macro, evaluating in the user's namespace | |
2179 | #print 'new command: <%r>' % cmd # dbg |
|
2191 | #print 'new command: <%r>' % cmd # dbg | |
2180 | return cmd |
|
2192 | return cmd | |
2181 |
|
2193 | |||
2182 | def call_alias(self,alias,rest=''): |
|
2194 | def call_alias(self,alias,rest=''): | |
2183 | """Call an alias given its name and the rest of the line. |
|
2195 | """Call an alias given its name and the rest of the line. | |
2184 |
|
2196 | |||
2185 | This is only used to provide backwards compatibility for users of |
|
2197 | This is only used to provide backwards compatibility for users of | |
2186 | ipalias(), use of which is not recommended for anymore.""" |
|
2198 | ipalias(), use of which is not recommended for anymore.""" | |
2187 |
|
2199 | |||
2188 | # Now call the macro, evaluating in the user's namespace |
|
2200 | # Now call the macro, evaluating in the user's namespace | |
2189 | cmd = self.transform_alias(alias, rest) |
|
2201 | cmd = self.transform_alias(alias, rest) | |
2190 | try: |
|
2202 | try: | |
2191 | self.system(cmd) |
|
2203 | self.system(cmd) | |
2192 | except: |
|
2204 | except: | |
2193 | self.showtraceback() |
|
2205 | self.showtraceback() | |
2194 |
|
2206 | |||
2195 | def indent_current_str(self): |
|
2207 | def indent_current_str(self): | |
2196 | """return the current level of indentation as a string""" |
|
2208 | """return the current level of indentation as a string""" | |
2197 | return self.indent_current_nsp * ' ' |
|
2209 | return self.indent_current_nsp * ' ' | |
2198 |
|
2210 | |||
2199 | def autoindent_update(self,line): |
|
2211 | def autoindent_update(self,line): | |
2200 | """Keep track of the indent level.""" |
|
2212 | """Keep track of the indent level.""" | |
2201 |
|
2213 | |||
2202 | #debugx('line') |
|
2214 | #debugx('line') | |
2203 | #debugx('self.indent_current_nsp') |
|
2215 | #debugx('self.indent_current_nsp') | |
2204 | if self.autoindent: |
|
2216 | if self.autoindent: | |
2205 | if line: |
|
2217 | if line: | |
2206 | inisp = num_ini_spaces(line) |
|
2218 | inisp = num_ini_spaces(line) | |
2207 | if inisp < self.indent_current_nsp: |
|
2219 | if inisp < self.indent_current_nsp: | |
2208 | self.indent_current_nsp = inisp |
|
2220 | self.indent_current_nsp = inisp | |
2209 |
|
2221 | |||
2210 | if line[-1] == ':': |
|
2222 | if line[-1] == ':': | |
2211 | self.indent_current_nsp += 4 |
|
2223 | self.indent_current_nsp += 4 | |
2212 | elif dedent_re.match(line): |
|
2224 | elif dedent_re.match(line): | |
2213 | self.indent_current_nsp -= 4 |
|
2225 | self.indent_current_nsp -= 4 | |
2214 | else: |
|
2226 | else: | |
2215 | self.indent_current_nsp = 0 |
|
2227 | self.indent_current_nsp = 0 | |
2216 |
|
2228 | |||
2217 | def push(self, variables, interactive=True): |
|
2229 | def push(self, variables, interactive=True): | |
2218 | """Inject a group of variables into the IPython user namespace. |
|
2230 | """Inject a group of variables into the IPython user namespace. | |
2219 |
|
2231 | |||
2220 | Parameters |
|
2232 | Parameters | |
2221 | ---------- |
|
2233 | ---------- | |
2222 | variables : dict, str or list/tuple of str |
|
2234 | variables : dict, str or list/tuple of str | |
2223 | The variables to inject into the user's namespace. If a dict, |
|
2235 | The variables to inject into the user's namespace. If a dict, | |
2224 | a simple update is done. If a str, the string is assumed to |
|
2236 | a simple update is done. If a str, the string is assumed to | |
2225 | have variable names separated by spaces. A list/tuple of str |
|
2237 | have variable names separated by spaces. A list/tuple of str | |
2226 | can also be used to give the variable names. If just the variable |
|
2238 | can also be used to give the variable names. If just the variable | |
2227 | names are give (list/tuple/str) then the variable values looked |
|
2239 | names are give (list/tuple/str) then the variable values looked | |
2228 | up in the callers frame. |
|
2240 | up in the callers frame. | |
2229 | interactive : bool |
|
2241 | interactive : bool | |
2230 | If True (default), the variables will be listed with the ``who`` |
|
2242 | If True (default), the variables will be listed with the ``who`` | |
2231 | magic. |
|
2243 | magic. | |
2232 | """ |
|
2244 | """ | |
2233 | vdict = None |
|
2245 | vdict = None | |
2234 |
|
2246 | |||
2235 | # We need a dict of name/value pairs to do namespace updates. |
|
2247 | # We need a dict of name/value pairs to do namespace updates. | |
2236 | if isinstance(variables, dict): |
|
2248 | if isinstance(variables, dict): | |
2237 | vdict = variables |
|
2249 | vdict = variables | |
2238 | elif isinstance(variables, (basestring, list, tuple)): |
|
2250 | elif isinstance(variables, (basestring, list, tuple)): | |
2239 | if isinstance(variables, basestring): |
|
2251 | if isinstance(variables, basestring): | |
2240 | vlist = variables.split() |
|
2252 | vlist = variables.split() | |
2241 | else: |
|
2253 | else: | |
2242 | vlist = variables |
|
2254 | vlist = variables | |
2243 | vdict = {} |
|
2255 | vdict = {} | |
2244 | cf = sys._getframe(1) |
|
2256 | cf = sys._getframe(1) | |
2245 | for name in vlist: |
|
2257 | for name in vlist: | |
2246 | try: |
|
2258 | try: | |
2247 | vdict[name] = eval(name, cf.f_globals, cf.f_locals) |
|
2259 | vdict[name] = eval(name, cf.f_globals, cf.f_locals) | |
2248 | except: |
|
2260 | except: | |
2249 | print ('Could not get variable %s from %s' % |
|
2261 | print ('Could not get variable %s from %s' % | |
2250 | (name,cf.f_code.co_name)) |
|
2262 | (name,cf.f_code.co_name)) | |
2251 | else: |
|
2263 | else: | |
2252 | raise ValueError('variables must be a dict/str/list/tuple') |
|
2264 | raise ValueError('variables must be a dict/str/list/tuple') | |
2253 |
|
2265 | |||
2254 | # Propagate variables to user namespace |
|
2266 | # Propagate variables to user namespace | |
2255 | self.user_ns.update(vdict) |
|
2267 | self.user_ns.update(vdict) | |
2256 |
|
2268 | |||
2257 | # And configure interactive visibility |
|
2269 | # And configure interactive visibility | |
2258 | config_ns = self.user_config_ns |
|
2270 | config_ns = self.user_config_ns | |
2259 | if interactive: |
|
2271 | if interactive: | |
2260 | for name, val in vdict.iteritems(): |
|
2272 | for name, val in vdict.iteritems(): | |
2261 | config_ns.pop(name, None) |
|
2273 | config_ns.pop(name, None) | |
2262 | else: |
|
2274 | else: | |
2263 | for name,val in vdict.iteritems(): |
|
2275 | for name,val in vdict.iteritems(): | |
2264 | config_ns[name] = val |
|
2276 | config_ns[name] = val | |
2265 |
|
2277 | |||
2266 | def cleanup_ipy_script(self, script): |
|
2278 | def cleanup_ipy_script(self, script): | |
2267 | """Make a script safe for self.runlines() |
|
2279 | """Make a script safe for self.runlines() | |
2268 |
|
2280 | |||
2269 | Notes |
|
2281 | Notes | |
2270 | ----- |
|
2282 | ----- | |
2271 | This was copied over from the old ipapi and probably can be done |
|
2283 | This was copied over from the old ipapi and probably can be done | |
2272 | away with once we move to block based interpreter. |
|
2284 | away with once we move to block based interpreter. | |
2273 |
|
2285 | |||
2274 | - Removes empty lines Suffixes all indented blocks that end with |
|
2286 | - Removes empty lines Suffixes all indented blocks that end with | |
2275 | - unindented lines with empty lines |
|
2287 | - unindented lines with empty lines | |
2276 | """ |
|
2288 | """ | |
2277 |
|
2289 | |||
2278 | res = [] |
|
2290 | res = [] | |
2279 | lines = script.splitlines() |
|
2291 | lines = script.splitlines() | |
2280 |
|
2292 | |||
2281 | level = 0 |
|
2293 | level = 0 | |
2282 | for l in lines: |
|
2294 | for l in lines: | |
2283 | lstripped = l.lstrip() |
|
2295 | lstripped = l.lstrip() | |
2284 | stripped = l.strip() |
|
2296 | stripped = l.strip() | |
2285 | if not stripped: |
|
2297 | if not stripped: | |
2286 | continue |
|
2298 | continue | |
2287 | newlevel = len(l) - len(lstripped) |
|
2299 | newlevel = len(l) - len(lstripped) | |
2288 | def is_secondary_block_start(s): |
|
2300 | def is_secondary_block_start(s): | |
2289 | if not s.endswith(':'): |
|
2301 | if not s.endswith(':'): | |
2290 | return False |
|
2302 | return False | |
2291 | if (s.startswith('elif') or |
|
2303 | if (s.startswith('elif') or | |
2292 | s.startswith('else') or |
|
2304 | s.startswith('else') or | |
2293 | s.startswith('except') or |
|
2305 | s.startswith('except') or | |
2294 | s.startswith('finally')): |
|
2306 | s.startswith('finally')): | |
2295 | return True |
|
2307 | return True | |
2296 |
|
2308 | |||
2297 | if level > 0 and newlevel == 0 and \ |
|
2309 | if level > 0 and newlevel == 0 and \ | |
2298 | not is_secondary_block_start(stripped): |
|
2310 | not is_secondary_block_start(stripped): | |
2299 | # add empty line |
|
2311 | # add empty line | |
2300 | res.append('') |
|
2312 | res.append('') | |
2301 |
|
2313 | |||
2302 | res.append(l) |
|
2314 | res.append(l) | |
2303 | level = newlevel |
|
2315 | level = newlevel | |
2304 | return '\n'.join(res) + '\n' |
|
2316 | return '\n'.join(res) + '\n' | |
2305 |
|
2317 | |||
2306 | def runlines(self, lines, clean=False): |
|
2318 | def runlines(self, lines, clean=False): | |
2307 | """Run a string of one or more lines of source. |
|
2319 | """Run a string of one or more lines of source. | |
2308 |
|
2320 | |||
2309 | This method is capable of running a string containing multiple source |
|
2321 | This method is capable of running a string containing multiple source | |
2310 | lines, as if they had been entered at the IPython prompt. Since it |
|
2322 | lines, as if they had been entered at the IPython prompt. Since it | |
2311 | exposes IPython's processing machinery, the given strings can contain |
|
2323 | exposes IPython's processing machinery, the given strings can contain | |
2312 | magic calls (%magic), special shell access (!cmd), etc. |
|
2324 | magic calls (%magic), special shell access (!cmd), etc. | |
2313 | """ |
|
2325 | """ | |
2314 |
|
2326 | |||
2315 | if isinstance(lines, (list, tuple)): |
|
2327 | if isinstance(lines, (list, tuple)): | |
2316 | lines = '\n'.join(lines) |
|
2328 | lines = '\n'.join(lines) | |
2317 |
|
2329 | |||
2318 | if clean: |
|
2330 | if clean: | |
2319 | lines = self.cleanup_ipy_script(lines) |
|
2331 | lines = self.cleanup_ipy_script(lines) | |
2320 |
|
2332 | |||
2321 | # We must start with a clean buffer, in case this is run from an |
|
2333 | # We must start with a clean buffer, in case this is run from an | |
2322 | # interactive IPython session (via a magic, for example). |
|
2334 | # interactive IPython session (via a magic, for example). | |
2323 | self.resetbuffer() |
|
2335 | self.resetbuffer() | |
2324 | lines = lines.splitlines() |
|
2336 | lines = lines.splitlines() | |
2325 | more = 0 |
|
2337 | more = 0 | |
2326 |
|
2338 | |||
2327 | for line in lines: |
|
2339 | for line in lines: | |
2328 | # skip blank lines so we don't mess up the prompt counter, but do |
|
2340 | # skip blank lines so we don't mess up the prompt counter, but do | |
2329 | # NOT skip even a blank line if we are in a code block (more is |
|
2341 | # NOT skip even a blank line if we are in a code block (more is | |
2330 | # true) |
|
2342 | # true) | |
2331 |
|
2343 | |||
2332 | if line or more: |
|
2344 | if line or more: | |
2333 | # push to raw history, so hist line numbers stay in sync |
|
2345 | # push to raw history, so hist line numbers stay in sync | |
2334 | self.input_hist_raw.append("# " + line + "\n") |
|
2346 | self.input_hist_raw.append("# " + line + "\n") | |
2335 | more = self.push_line(self.prefilter(line,more)) |
|
2347 | more = self.push_line(self.prefilter(line,more)) | |
2336 | # IPython's runsource returns None if there was an error |
|
2348 | # IPython's runsource returns None if there was an error | |
2337 | # compiling the code. This allows us to stop processing right |
|
2349 | # compiling the code. This allows us to stop processing right | |
2338 | # away, so the user gets the error message at the right place. |
|
2350 | # away, so the user gets the error message at the right place. | |
2339 | if more is None: |
|
2351 | if more is None: | |
2340 | break |
|
2352 | break | |
2341 | else: |
|
2353 | else: | |
2342 | self.input_hist_raw.append("\n") |
|
2354 | self.input_hist_raw.append("\n") | |
2343 | # final newline in case the input didn't have it, so that the code |
|
2355 | # final newline in case the input didn't have it, so that the code | |
2344 | # actually does get executed |
|
2356 | # actually does get executed | |
2345 | if more: |
|
2357 | if more: | |
2346 | self.push_line('\n') |
|
2358 | self.push_line('\n') | |
2347 |
|
2359 | |||
2348 | def runsource(self, source, filename='<input>', symbol='single'): |
|
2360 | def runsource(self, source, filename='<input>', symbol='single'): | |
2349 | """Compile and run some source in the interpreter. |
|
2361 | """Compile and run some source in the interpreter. | |
2350 |
|
2362 | |||
2351 | Arguments are as for compile_command(). |
|
2363 | Arguments are as for compile_command(). | |
2352 |
|
2364 | |||
2353 | One several things can happen: |
|
2365 | One several things can happen: | |
2354 |
|
2366 | |||
2355 | 1) The input is incorrect; compile_command() raised an |
|
2367 | 1) The input is incorrect; compile_command() raised an | |
2356 | exception (SyntaxError or OverflowError). A syntax traceback |
|
2368 | exception (SyntaxError or OverflowError). A syntax traceback | |
2357 | will be printed by calling the showsyntaxerror() method. |
|
2369 | will be printed by calling the showsyntaxerror() method. | |
2358 |
|
2370 | |||
2359 | 2) The input is incomplete, and more input is required; |
|
2371 | 2) The input is incomplete, and more input is required; | |
2360 | compile_command() returned None. Nothing happens. |
|
2372 | compile_command() returned None. Nothing happens. | |
2361 |
|
2373 | |||
2362 | 3) The input is complete; compile_command() returned a code |
|
2374 | 3) The input is complete; compile_command() returned a code | |
2363 | object. The code is executed by calling self.runcode() (which |
|
2375 | object. The code is executed by calling self.runcode() (which | |
2364 | also handles run-time exceptions, except for SystemExit). |
|
2376 | also handles run-time exceptions, except for SystemExit). | |
2365 |
|
2377 | |||
2366 | The return value is: |
|
2378 | The return value is: | |
2367 |
|
2379 | |||
2368 | - True in case 2 |
|
2380 | - True in case 2 | |
2369 |
|
2381 | |||
2370 | - False in the other cases, unless an exception is raised, where |
|
2382 | - False in the other cases, unless an exception is raised, where | |
2371 | None is returned instead. This can be used by external callers to |
|
2383 | None is returned instead. This can be used by external callers to | |
2372 | know whether to continue feeding input or not. |
|
2384 | know whether to continue feeding input or not. | |
2373 |
|
2385 | |||
2374 | The return value can be used to decide whether to use sys.ps1 or |
|
2386 | The return value can be used to decide whether to use sys.ps1 or | |
2375 | sys.ps2 to prompt the next line.""" |
|
2387 | sys.ps2 to prompt the next line.""" | |
2376 |
|
2388 | |||
2377 | # if the source code has leading blanks, add 'if 1:\n' to it |
|
2389 | # if the source code has leading blanks, add 'if 1:\n' to it | |
2378 | # this allows execution of indented pasted code. It is tempting |
|
2390 | # this allows execution of indented pasted code. It is tempting | |
2379 | # to add '\n' at the end of source to run commands like ' a=1' |
|
2391 | # to add '\n' at the end of source to run commands like ' a=1' | |
2380 | # directly, but this fails for more complicated scenarios |
|
2392 | # directly, but this fails for more complicated scenarios | |
2381 | source=source.encode(self.stdin_encoding) |
|
2393 | source=source.encode(self.stdin_encoding) | |
2382 | if source[:1] in [' ', '\t']: |
|
2394 | if source[:1] in [' ', '\t']: | |
2383 | source = 'if 1:\n%s' % source |
|
2395 | source = 'if 1:\n%s' % source | |
2384 |
|
2396 | |||
2385 | try: |
|
2397 | try: | |
2386 | code = self.compile(source,filename,symbol) |
|
2398 | code = self.compile(source,filename,symbol) | |
2387 | except (OverflowError, SyntaxError, ValueError, TypeError, MemoryError): |
|
2399 | except (OverflowError, SyntaxError, ValueError, TypeError, MemoryError): | |
2388 | # Case 1 |
|
2400 | # Case 1 | |
2389 | self.showsyntaxerror(filename) |
|
2401 | self.showsyntaxerror(filename) | |
2390 | return None |
|
2402 | return None | |
2391 |
|
2403 | |||
2392 | if code is None: |
|
2404 | if code is None: | |
2393 | # Case 2 |
|
2405 | # Case 2 | |
2394 | return True |
|
2406 | return True | |
2395 |
|
2407 | |||
2396 | # Case 3 |
|
2408 | # Case 3 | |
2397 | # We store the code object so that threaded shells and |
|
2409 | # We store the code object so that threaded shells and | |
2398 | # custom exception handlers can access all this info if needed. |
|
2410 | # custom exception handlers can access all this info if needed. | |
2399 | # The source corresponding to this can be obtained from the |
|
2411 | # The source corresponding to this can be obtained from the | |
2400 | # buffer attribute as '\n'.join(self.buffer). |
|
2412 | # buffer attribute as '\n'.join(self.buffer). | |
2401 | self.code_to_run = code |
|
2413 | self.code_to_run = code | |
2402 | # now actually execute the code object |
|
2414 | # now actually execute the code object | |
2403 | if self.runcode(code) == 0: |
|
2415 | if self.runcode(code) == 0: | |
2404 | return False |
|
2416 | return False | |
2405 | else: |
|
2417 | else: | |
2406 | return None |
|
2418 | return None | |
2407 |
|
2419 | |||
2408 | def runcode(self,code_obj): |
|
2420 | def runcode(self,code_obj): | |
2409 | """Execute a code object. |
|
2421 | """Execute a code object. | |
2410 |
|
2422 | |||
2411 | When an exception occurs, self.showtraceback() is called to display a |
|
2423 | When an exception occurs, self.showtraceback() is called to display a | |
2412 | traceback. |
|
2424 | traceback. | |
2413 |
|
2425 | |||
2414 | Return value: a flag indicating whether the code to be run completed |
|
2426 | Return value: a flag indicating whether the code to be run completed | |
2415 | successfully: |
|
2427 | successfully: | |
2416 |
|
2428 | |||
2417 | - 0: successful execution. |
|
2429 | - 0: successful execution. | |
2418 | - 1: an error occurred. |
|
2430 | - 1: an error occurred. | |
2419 | """ |
|
2431 | """ | |
2420 |
|
2432 | |||
2421 | # Set our own excepthook in case the user code tries to call it |
|
2433 | # Set our own excepthook in case the user code tries to call it | |
2422 | # directly, so that the IPython crash handler doesn't get triggered |
|
2434 | # directly, so that the IPython crash handler doesn't get triggered | |
2423 | old_excepthook,sys.excepthook = sys.excepthook, self.excepthook |
|
2435 | old_excepthook,sys.excepthook = sys.excepthook, self.excepthook | |
2424 |
|
2436 | |||
2425 | # we save the original sys.excepthook in the instance, in case config |
|
2437 | # we save the original sys.excepthook in the instance, in case config | |
2426 | # code (such as magics) needs access to it. |
|
2438 | # code (such as magics) needs access to it. | |
2427 | self.sys_excepthook = old_excepthook |
|
2439 | self.sys_excepthook = old_excepthook | |
2428 | outflag = 1 # happens in more places, so it's easier as default |
|
2440 | outflag = 1 # happens in more places, so it's easier as default | |
2429 | try: |
|
2441 | try: | |
2430 | try: |
|
2442 | try: | |
2431 | self.hooks.pre_runcode_hook() |
|
2443 | self.hooks.pre_runcode_hook() | |
2432 | exec code_obj in self.user_global_ns, self.user_ns |
|
2444 | exec code_obj in self.user_global_ns, self.user_ns | |
2433 | finally: |
|
2445 | finally: | |
2434 | # Reset our crash handler in place |
|
2446 | # Reset our crash handler in place | |
2435 | sys.excepthook = old_excepthook |
|
2447 | sys.excepthook = old_excepthook | |
2436 | except SystemExit: |
|
2448 | except SystemExit: | |
2437 | self.resetbuffer() |
|
2449 | self.resetbuffer() | |
2438 | self.showtraceback() |
|
2450 | self.showtraceback() | |
2439 | warn("Type %exit or %quit to exit IPython " |
|
2451 | warn("Type %exit or %quit to exit IPython " | |
2440 | "(%Exit or %Quit do so unconditionally).",level=1) |
|
2452 | "(%Exit or %Quit do so unconditionally).",level=1) | |
2441 | except self.custom_exceptions: |
|
2453 | except self.custom_exceptions: | |
2442 | etype,value,tb = sys.exc_info() |
|
2454 | etype,value,tb = sys.exc_info() | |
2443 | self.CustomTB(etype,value,tb) |
|
2455 | self.CustomTB(etype,value,tb) | |
2444 | except: |
|
2456 | except: | |
2445 | self.showtraceback() |
|
2457 | self.showtraceback() | |
2446 | else: |
|
2458 | else: | |
2447 | outflag = 0 |
|
2459 | outflag = 0 | |
2448 | if softspace(sys.stdout, 0): |
|
2460 | if softspace(sys.stdout, 0): | |
2449 |
|
2461 | |||
2450 | # Flush out code object which has been run (and source) |
|
2462 | # Flush out code object which has been run (and source) | |
2451 | self.code_to_run = None |
|
2463 | self.code_to_run = None | |
2452 | return outflag |
|
2464 | return outflag | |
2453 |
|
2465 | |||
2454 | def push_line(self, line): |
|
2466 | def push_line(self, line): | |
2455 | """Push a line to the interpreter. |
|
2467 | """Push a line to the interpreter. | |
2456 |
|
2468 | |||
2457 | The line should not have a trailing newline; it may have |
|
2469 | The line should not have a trailing newline; it may have | |
2458 | internal newlines. The line is appended to a buffer and the |
|
2470 | internal newlines. The line is appended to a buffer and the | |
2459 | interpreter's runsource() method is called with the |
|
2471 | interpreter's runsource() method is called with the | |
2460 | concatenated contents of the buffer as source. If this |
|
2472 | concatenated contents of the buffer as source. If this | |
2461 | indicates that the command was executed or invalid, the buffer |
|
2473 | indicates that the command was executed or invalid, the buffer | |
2462 | is reset; otherwise, the command is incomplete, and the buffer |
|
2474 | is reset; otherwise, the command is incomplete, and the buffer | |
2463 | is left as it was after the line was appended. The return |
|
2475 | is left as it was after the line was appended. The return | |
2464 | value is 1 if more input is required, 0 if the line was dealt |
|
2476 | value is 1 if more input is required, 0 if the line was dealt | |
2465 | with in some way (this is the same as runsource()). |
|
2477 | with in some way (this is the same as runsource()). | |
2466 | """ |
|
2478 | """ | |
2467 |
|
2479 | |||
2468 | # autoindent management should be done here, and not in the |
|
2480 | # autoindent management should be done here, and not in the | |
2469 | # interactive loop, since that one is only seen by keyboard input. We |
|
2481 | # interactive loop, since that one is only seen by keyboard input. We | |
2470 | # need this done correctly even for code run via runlines (which uses |
|
2482 | # need this done correctly even for code run via runlines (which uses | |
2471 | # push). |
|
2483 | # push). | |
2472 |
|
2484 | |||
2473 | #print 'push line: <%s>' % line # dbg |
|
2485 | #print 'push line: <%s>' % line # dbg | |
2474 | for subline in line.splitlines(): |
|
2486 | for subline in line.splitlines(): | |
2475 | self.autoindent_update(subline) |
|
2487 | self.autoindent_update(subline) | |
2476 | self.buffer.append(line) |
|
2488 | self.buffer.append(line) | |
2477 | more = self.runsource('\n'.join(self.buffer), self.filename) |
|
2489 | more = self.runsource('\n'.join(self.buffer), self.filename) | |
2478 | if not more: |
|
2490 | if not more: | |
2479 | self.resetbuffer() |
|
2491 | self.resetbuffer() | |
2480 | return more |
|
2492 | return more | |
2481 |
|
2493 | |||
2482 | def split_user_input(self, line): |
|
2494 | def split_user_input(self, line): | |
2483 | # This is really a hold-over to support ipapi and some extensions |
|
2495 | # This is really a hold-over to support ipapi and some extensions | |
2484 | return prefilter.splitUserInput(line) |
|
2496 | return prefilter.splitUserInput(line) | |
2485 |
|
2497 | |||
2486 | def resetbuffer(self): |
|
2498 | def resetbuffer(self): | |
2487 | """Reset the input buffer.""" |
|
2499 | """Reset the input buffer.""" | |
2488 | self.buffer[:] = [] |
|
2500 | self.buffer[:] = [] | |
2489 |
|
2501 | |||
2490 | def raw_input(self,prompt='',continue_prompt=False): |
|
2502 | def raw_input(self,prompt='',continue_prompt=False): | |
2491 | """Write a prompt and read a line. |
|
2503 | """Write a prompt and read a line. | |
2492 |
|
2504 | |||
2493 | The returned line does not include the trailing newline. |
|
2505 | The returned line does not include the trailing newline. | |
2494 | When the user enters the EOF key sequence, EOFError is raised. |
|
2506 | When the user enters the EOF key sequence, EOFError is raised. | |
2495 |
|
2507 | |||
2496 | Optional inputs: |
|
2508 | Optional inputs: | |
2497 |
|
2509 | |||
2498 | - prompt(''): a string to be printed to prompt the user. |
|
2510 | - prompt(''): a string to be printed to prompt the user. | |
2499 |
|
2511 | |||
2500 | - continue_prompt(False): whether this line is the first one or a |
|
2512 | - continue_prompt(False): whether this line is the first one or a | |
2501 | continuation in a sequence of inputs. |
|
2513 | continuation in a sequence of inputs. | |
2502 | """ |
|
2514 | """ | |
2503 |
|
2515 | |||
2504 | # Code run by the user may have modified the readline completer state. |
|
2516 | # Code run by the user may have modified the readline completer state. | |
2505 | # We must ensure that our completer is back in place. |
|
2517 | # We must ensure that our completer is back in place. | |
2506 | if self.has_readline: |
|
2518 | if self.has_readline: | |
2507 | self.set_completer() |
|
2519 | self.set_completer() | |
2508 |
|
2520 | |||
2509 | try: |
|
2521 | try: | |
2510 | line = raw_input_original(prompt).decode(self.stdin_encoding) |
|
2522 | line = raw_input_original(prompt).decode(self.stdin_encoding) | |
2511 | except ValueError: |
|
2523 | except ValueError: | |
2512 | warn("\n********\nYou or a %run:ed script called sys.stdin.close()" |
|
2524 | warn("\n********\nYou or a %run:ed script called sys.stdin.close()" | |
2513 | " or sys.stdout.close()!\nExiting IPython!") |
|
2525 | " or sys.stdout.close()!\nExiting IPython!") | |
2514 | self.ask_exit() |
|
2526 | self.ask_exit() | |
2515 | return "" |
|
2527 | return "" | |
2516 |
|
2528 | |||
2517 | # Try to be reasonably smart about not re-indenting pasted input more |
|
2529 | # Try to be reasonably smart about not re-indenting pasted input more | |
2518 | # than necessary. We do this by trimming out the auto-indent initial |
|
2530 | # than necessary. We do this by trimming out the auto-indent initial | |
2519 | # spaces, if the user's actual input started itself with whitespace. |
|
2531 | # spaces, if the user's actual input started itself with whitespace. | |
2520 | #debugx('self.buffer[-1]') |
|
2532 | #debugx('self.buffer[-1]') | |
2521 |
|
2533 | |||
2522 | if self.autoindent: |
|
2534 | if self.autoindent: | |
2523 | if num_ini_spaces(line) > self.indent_current_nsp: |
|
2535 | if num_ini_spaces(line) > self.indent_current_nsp: | |
2524 | line = line[self.indent_current_nsp:] |
|
2536 | line = line[self.indent_current_nsp:] | |
2525 | self.indent_current_nsp = 0 |
|
2537 | self.indent_current_nsp = 0 | |
2526 |
|
2538 | |||
2527 | # store the unfiltered input before the user has any chance to modify |
|
2539 | # store the unfiltered input before the user has any chance to modify | |
2528 | # it. |
|
2540 | # it. | |
2529 | if line.strip(): |
|
2541 | if line.strip(): | |
2530 | if continue_prompt: |
|
2542 | if continue_prompt: | |
2531 | self.input_hist_raw[-1] += '%s\n' % line |
|
2543 | self.input_hist_raw[-1] += '%s\n' % line | |
2532 | if self.has_readline: # and some config option is set? |
|
2544 | if self.has_readline: # and some config option is set? | |
2533 | try: |
|
2545 | try: | |
2534 | histlen = self.readline.get_current_history_length() |
|
2546 | histlen = self.readline.get_current_history_length() | |
2535 | if histlen > 1: |
|
2547 | if histlen > 1: | |
2536 | newhist = self.input_hist_raw[-1].rstrip() |
|
2548 | newhist = self.input_hist_raw[-1].rstrip() | |
2537 | self.readline.remove_history_item(histlen-1) |
|
2549 | self.readline.remove_history_item(histlen-1) | |
2538 | self.readline.replace_history_item(histlen-2, |
|
2550 | self.readline.replace_history_item(histlen-2, | |
2539 | newhist.encode(self.stdin_encoding)) |
|
2551 | newhist.encode(self.stdin_encoding)) | |
2540 | except AttributeError: |
|
2552 | except AttributeError: | |
2541 | pass # re{move,place}_history_item are new in 2.4. |
|
2553 | pass # re{move,place}_history_item are new in 2.4. | |
2542 | else: |
|
2554 | else: | |
2543 | self.input_hist_raw.append('%s\n' % line) |
|
2555 | self.input_hist_raw.append('%s\n' % line) | |
2544 | # only entries starting at first column go to shadow history |
|
2556 | # only entries starting at first column go to shadow history | |
2545 | if line.lstrip() == line: |
|
2557 | if line.lstrip() == line: | |
2546 | self.shadowhist.add(line.strip()) |
|
2558 | self.shadowhist.add(line.strip()) | |
2547 | elif not continue_prompt: |
|
2559 | elif not continue_prompt: | |
2548 | self.input_hist_raw.append('\n') |
|
2560 | self.input_hist_raw.append('\n') | |
2549 | try: |
|
2561 | try: | |
2550 | lineout = self.prefilter(line,continue_prompt) |
|
2562 | lineout = self.prefilter(line,continue_prompt) | |
2551 | except: |
|
2563 | except: | |
2552 | # blanket except, in case a user-defined prefilter crashes, so it |
|
2564 | # blanket except, in case a user-defined prefilter crashes, so it | |
2553 | # can't take all of ipython with it. |
|
2565 | # can't take all of ipython with it. | |
2554 | self.showtraceback() |
|
2566 | self.showtraceback() | |
2555 | return '' |
|
2567 | return '' | |
2556 | else: |
|
2568 | else: | |
2557 | return lineout |
|
2569 | return lineout | |
2558 |
|
2570 | |||
2559 | def _prefilter(self, line, continue_prompt): |
|
2571 | def _prefilter(self, line, continue_prompt): | |
2560 | """Calls different preprocessors, depending on the form of line.""" |
|
2572 | """Calls different preprocessors, depending on the form of line.""" | |
2561 |
|
2573 | |||
2562 | # All handlers *must* return a value, even if it's blank (''). |
|
2574 | # All handlers *must* return a value, even if it's blank (''). | |
2563 |
|
2575 | |||
2564 | # Lines are NOT logged here. Handlers should process the line as |
|
2576 | # Lines are NOT logged here. Handlers should process the line as | |
2565 | # needed, update the cache AND log it (so that the input cache array |
|
2577 | # needed, update the cache AND log it (so that the input cache array | |
2566 | # stays synced). |
|
2578 | # stays synced). | |
2567 |
|
2579 | |||
2568 | #..................................................................... |
|
2580 | #..................................................................... | |
2569 | # Code begins |
|
2581 | # Code begins | |
2570 |
|
2582 | |||
2571 | #if line.startswith('%crash'): raise RuntimeError,'Crash now!' # dbg |
|
2583 | #if line.startswith('%crash'): raise RuntimeError,'Crash now!' # dbg | |
2572 |
|
2584 | |||
2573 | # save the line away in case we crash, so the post-mortem handler can |
|
2585 | # save the line away in case we crash, so the post-mortem handler can | |
2574 | # record it |
|
2586 | # record it | |
2575 | self._last_input_line = line |
|
2587 | self._last_input_line = line | |
2576 |
|
2588 | |||
2577 | #print '***line: <%s>' % line # dbg |
|
2589 | #print '***line: <%s>' % line # dbg | |
2578 |
|
2590 | |||
2579 | if not line: |
|
2591 | if not line: | |
2580 | # Return immediately on purely empty lines, so that if the user |
|
2592 | # Return immediately on purely empty lines, so that if the user | |
2581 | # previously typed some whitespace that started a continuation |
|
2593 | # previously typed some whitespace that started a continuation | |
2582 | # prompt, he can break out of that loop with just an empty line. |
|
2594 | # prompt, he can break out of that loop with just an empty line. | |
2583 | # This is how the default python prompt works. |
|
2595 | # This is how the default python prompt works. | |
2584 |
|
2596 | |||
2585 | # Only return if the accumulated input buffer was just whitespace! |
|
2597 | # Only return if the accumulated input buffer was just whitespace! | |
2586 | if ''.join(self.buffer).isspace(): |
|
2598 | if ''.join(self.buffer).isspace(): | |
2587 | self.buffer[:] = [] |
|
2599 | self.buffer[:] = [] | |
2588 | return '' |
|
2600 | return '' | |
2589 |
|
2601 | |||
2590 | line_info = prefilter.LineInfo(line, continue_prompt) |
|
2602 | line_info = prefilter.LineInfo(line, continue_prompt) | |
2591 |
|
2603 | |||
2592 | # the input history needs to track even empty lines |
|
2604 | # the input history needs to track even empty lines | |
2593 | stripped = line.strip() |
|
2605 | stripped = line.strip() | |
2594 |
|
2606 | |||
2595 | if not stripped: |
|
2607 | if not stripped: | |
2596 | if not continue_prompt: |
|
2608 | if not continue_prompt: | |
2597 | self.outputcache.prompt_count -= 1 |
|
2609 | self.outputcache.prompt_count -= 1 | |
2598 | return self.handle_normal(line_info) |
|
2610 | return self.handle_normal(line_info) | |
2599 |
|
2611 | |||
2600 | # print '***cont',continue_prompt # dbg |
|
2612 | # print '***cont',continue_prompt # dbg | |
2601 | # special handlers are only allowed for single line statements |
|
2613 | # special handlers are only allowed for single line statements | |
2602 | if continue_prompt and not self.multi_line_specials: |
|
2614 | if continue_prompt and not self.multi_line_specials: | |
2603 | return self.handle_normal(line_info) |
|
2615 | return self.handle_normal(line_info) | |
2604 |
|
2616 | |||
2605 |
|
2617 | |||
2606 | # See whether any pre-existing handler can take care of it |
|
2618 | # See whether any pre-existing handler can take care of it | |
2607 | rewritten = self.hooks.input_prefilter(stripped) |
|
2619 | rewritten = self.hooks.input_prefilter(stripped) | |
2608 | if rewritten != stripped: # ok, some prefilter did something |
|
2620 | if rewritten != stripped: # ok, some prefilter did something | |
2609 | rewritten = line_info.pre + rewritten # add indentation |
|
2621 | rewritten = line_info.pre + rewritten # add indentation | |
2610 | return self.handle_normal(prefilter.LineInfo(rewritten, |
|
2622 | return self.handle_normal(prefilter.LineInfo(rewritten, | |
2611 | continue_prompt)) |
|
2623 | continue_prompt)) | |
2612 |
|
2624 | |||
2613 | #print 'pre <%s> iFun <%s> rest <%s>' % (pre,iFun,theRest) # dbg |
|
2625 | #print 'pre <%s> iFun <%s> rest <%s>' % (pre,iFun,theRest) # dbg | |
2614 |
|
2626 | |||
2615 | return prefilter.prefilter(line_info, self) |
|
2627 | return prefilter.prefilter(line_info, self) | |
2616 |
|
2628 | |||
2617 |
|
2629 | |||
2618 | def _prefilter_dumb(self, line, continue_prompt): |
|
2630 | def _prefilter_dumb(self, line, continue_prompt): | |
2619 | """simple prefilter function, for debugging""" |
|
2631 | """simple prefilter function, for debugging""" | |
2620 | return self.handle_normal(line,continue_prompt) |
|
2632 | return self.handle_normal(line,continue_prompt) | |
2621 |
|
2633 | |||
2622 |
|
2634 | |||
2623 | def multiline_prefilter(self, line, continue_prompt): |
|
2635 | def multiline_prefilter(self, line, continue_prompt): | |
2624 | """ Run _prefilter for each line of input |
|
2636 | """ Run _prefilter for each line of input | |
2625 |
|
2637 | |||
2626 | Covers cases where there are multiple lines in the user entry, |
|
2638 | Covers cases where there are multiple lines in the user entry, | |
2627 | which is the case when the user goes back to a multiline history |
|
2639 | which is the case when the user goes back to a multiline history | |
2628 | entry and presses enter. |
|
2640 | entry and presses enter. | |
2629 |
|
2641 | |||
2630 | """ |
|
2642 | """ | |
2631 | out = [] |
|
2643 | out = [] | |
2632 | for l in line.rstrip('\n').split('\n'): |
|
2644 | for l in line.rstrip('\n').split('\n'): | |
2633 | out.append(self._prefilter(l, continue_prompt)) |
|
2645 | out.append(self._prefilter(l, continue_prompt)) | |
2634 | return '\n'.join(out) |
|
2646 | return '\n'.join(out) | |
2635 |
|
2647 | |||
2636 | # Set the default prefilter() function (this can be user-overridden) |
|
2648 | # Set the default prefilter() function (this can be user-overridden) | |
2637 | prefilter = multiline_prefilter |
|
2649 | prefilter = multiline_prefilter | |
2638 |
|
2650 | |||
2639 | def handle_normal(self,line_info): |
|
2651 | def handle_normal(self,line_info): | |
2640 | """Handle normal input lines. Use as a template for handlers.""" |
|
2652 | """Handle normal input lines. Use as a template for handlers.""" | |
2641 |
|
2653 | |||
2642 | # With autoindent on, we need some way to exit the input loop, and I |
|
2654 | # With autoindent on, we need some way to exit the input loop, and I | |
2643 | # don't want to force the user to have to backspace all the way to |
|
2655 | # don't want to force the user to have to backspace all the way to | |
2644 | # clear the line. The rule will be in this case, that either two |
|
2656 | # clear the line. The rule will be in this case, that either two | |
2645 | # lines of pure whitespace in a row, or a line of pure whitespace but |
|
2657 | # lines of pure whitespace in a row, or a line of pure whitespace but | |
2646 | # of a size different to the indent level, will exit the input loop. |
|
2658 | # of a size different to the indent level, will exit the input loop. | |
2647 | line = line_info.line |
|
2659 | line = line_info.line | |
2648 | continue_prompt = line_info.continue_prompt |
|
2660 | continue_prompt = line_info.continue_prompt | |
2649 |
|
2661 | |||
2650 | if (continue_prompt and self.autoindent and line.isspace() and |
|
2662 | if (continue_prompt and self.autoindent and line.isspace() and | |
2651 | (0 < abs(len(line) - self.indent_current_nsp) <= 2 or |
|
2663 | (0 < abs(len(line) - self.indent_current_nsp) <= 2 or | |
2652 | (self.buffer[-1]).isspace() )): |
|
2664 | (self.buffer[-1]).isspace() )): | |
2653 | line = '' |
|
2665 | line = '' | |
2654 |
|
2666 | |||
2655 | self.log(line,line,continue_prompt) |
|
2667 | self.log(line,line,continue_prompt) | |
2656 | return line |
|
2668 | return line | |
2657 |
|
2669 | |||
2658 | def handle_alias(self,line_info): |
|
2670 | def handle_alias(self,line_info): | |
2659 | """Handle alias input lines. """ |
|
2671 | """Handle alias input lines. """ | |
2660 | tgt = self.alias_table[line_info.iFun] |
|
2672 | tgt = self.alias_table[line_info.iFun] | |
2661 | # print "=>",tgt #dbg |
|
2673 | # print "=>",tgt #dbg | |
2662 | if callable(tgt): |
|
2674 | if callable(tgt): | |
2663 | if '$' in line_info.line: |
|
2675 | if '$' in line_info.line: | |
2664 | call_meth = '(_ip, _ip.var_expand(%s))' |
|
2676 | call_meth = '(_ip, _ip.var_expand(%s))' | |
2665 | else: |
|
2677 | else: | |
2666 | call_meth = '(_ip,%s)' |
|
2678 | call_meth = '(_ip,%s)' | |
2667 | line_out = ("%s_sh.%s" + call_meth) % (line_info.preWhitespace, |
|
2679 | line_out = ("%s_sh.%s" + call_meth) % (line_info.preWhitespace, | |
2668 | line_info.iFun, |
|
2680 | line_info.iFun, | |
2669 | make_quoted_expr(line_info.line)) |
|
2681 | make_quoted_expr(line_info.line)) | |
2670 | else: |
|
2682 | else: | |
2671 | transformed = self.expand_aliases(line_info.iFun,line_info.theRest) |
|
2683 | transformed = self.expand_aliases(line_info.iFun,line_info.theRest) | |
2672 |
|
2684 | |||
2673 | # pre is needed, because it carries the leading whitespace. Otherwise |
|
2685 | # pre is needed, because it carries the leading whitespace. Otherwise | |
2674 | # aliases won't work in indented sections. |
|
2686 | # aliases won't work in indented sections. | |
2675 | line_out = '%s_ip.system(%s)' % (line_info.preWhitespace, |
|
2687 | line_out = '%s_ip.system(%s)' % (line_info.preWhitespace, | |
2676 | make_quoted_expr( transformed )) |
|
2688 | make_quoted_expr( transformed )) | |
2677 |
|
2689 | |||
2678 | self.log(line_info.line,line_out,line_info.continue_prompt) |
|
2690 | self.log(line_info.line,line_out,line_info.continue_prompt) | |
2679 | #print 'line out:',line_out # dbg |
|
2691 | #print 'line out:',line_out # dbg | |
2680 | return line_out |
|
2692 | return line_out | |
2681 |
|
2693 | |||
2682 | def handle_shell_escape(self, line_info): |
|
2694 | def handle_shell_escape(self, line_info): | |
2683 | """Execute the line in a shell, empty return value""" |
|
2695 | """Execute the line in a shell, empty return value""" | |
2684 | #print 'line in :', `line` # dbg |
|
2696 | #print 'line in :', `line` # dbg | |
2685 | line = line_info.line |
|
2697 | line = line_info.line | |
2686 | if line.lstrip().startswith('!!'): |
|
2698 | if line.lstrip().startswith('!!'): | |
2687 | # rewrite LineInfo's line, iFun and theRest to properly hold the |
|
2699 | # rewrite LineInfo's line, iFun and theRest to properly hold the | |
2688 | # call to %sx and the actual command to be executed, so |
|
2700 | # call to %sx and the actual command to be executed, so | |
2689 | # handle_magic can work correctly. Note that this works even if |
|
2701 | # handle_magic can work correctly. Note that this works even if | |
2690 | # the line is indented, so it handles multi_line_specials |
|
2702 | # the line is indented, so it handles multi_line_specials | |
2691 | # properly. |
|
2703 | # properly. | |
2692 | new_rest = line.lstrip()[2:] |
|
2704 | new_rest = line.lstrip()[2:] | |
2693 | line_info.line = '%ssx %s' % (self.ESC_MAGIC,new_rest) |
|
2705 | line_info.line = '%ssx %s' % (self.ESC_MAGIC,new_rest) | |
2694 | line_info.iFun = 'sx' |
|
2706 | line_info.iFun = 'sx' | |
2695 | line_info.theRest = new_rest |
|
2707 | line_info.theRest = new_rest | |
2696 | return self.handle_magic(line_info) |
|
2708 | return self.handle_magic(line_info) | |
2697 | else: |
|
2709 | else: | |
2698 | cmd = line.lstrip().lstrip('!') |
|
2710 | cmd = line.lstrip().lstrip('!') | |
2699 | line_out = '%s_ip.system(%s)' % (line_info.preWhitespace, |
|
2711 | line_out = '%s_ip.system(%s)' % (line_info.preWhitespace, | |
2700 | make_quoted_expr(cmd)) |
|
2712 | make_quoted_expr(cmd)) | |
2701 | # update cache/log and return |
|
2713 | # update cache/log and return | |
2702 | self.log(line,line_out,line_info.continue_prompt) |
|
2714 | self.log(line,line_out,line_info.continue_prompt) | |
2703 | return line_out |
|
2715 | return line_out | |
2704 |
|
2716 | |||
2705 | def handle_magic(self, line_info): |
|
2717 | def handle_magic(self, line_info): | |
2706 | """Execute magic functions.""" |
|
2718 | """Execute magic functions.""" | |
2707 | iFun = line_info.iFun |
|
2719 | iFun = line_info.iFun | |
2708 | theRest = line_info.theRest |
|
2720 | theRest = line_info.theRest | |
2709 | cmd = '%s_ip.magic(%s)' % (line_info.preWhitespace, |
|
2721 | cmd = '%s_ip.magic(%s)' % (line_info.preWhitespace, | |
2710 | make_quoted_expr(iFun + " " + theRest)) |
|
2722 | make_quoted_expr(iFun + " " + theRest)) | |
2711 | self.log(line_info.line,cmd,line_info.continue_prompt) |
|
2723 | self.log(line_info.line,cmd,line_info.continue_prompt) | |
2712 | #print 'in handle_magic, cmd=<%s>' % cmd # dbg |
|
2724 | #print 'in handle_magic, cmd=<%s>' % cmd # dbg | |
2713 | return cmd |
|
2725 | return cmd | |
2714 |
|
2726 | |||
2715 | def handle_auto(self, line_info): |
|
2727 | def handle_auto(self, line_info): | |
2716 | """Hande lines which can be auto-executed, quoting if requested.""" |
|
2728 | """Hande lines which can be auto-executed, quoting if requested.""" | |
2717 |
|
2729 | |||
2718 | line = line_info.line |
|
2730 | line = line_info.line | |
2719 | iFun = line_info.iFun |
|
2731 | iFun = line_info.iFun | |
2720 | theRest = line_info.theRest |
|
2732 | theRest = line_info.theRest | |
2721 | pre = line_info.pre |
|
2733 | pre = line_info.pre | |
2722 | continue_prompt = line_info.continue_prompt |
|
2734 | continue_prompt = line_info.continue_prompt | |
2723 | obj = line_info.ofind(self)['obj'] |
|
2735 | obj = line_info.ofind(self)['obj'] | |
2724 |
|
2736 | |||
2725 | #print 'pre <%s> iFun <%s> rest <%s>' % (pre,iFun,theRest) # dbg |
|
2737 | #print 'pre <%s> iFun <%s> rest <%s>' % (pre,iFun,theRest) # dbg | |
2726 |
|
2738 | |||
2727 | # This should only be active for single-line input! |
|
2739 | # This should only be active for single-line input! | |
2728 | if continue_prompt: |
|
2740 | if continue_prompt: | |
2729 | self.log(line,line,continue_prompt) |
|
2741 | self.log(line,line,continue_prompt) | |
2730 | return line |
|
2742 | return line | |
2731 |
|
2743 | |||
2732 | force_auto = isinstance(obj, IPyAutocall) |
|
2744 | force_auto = isinstance(obj, IPyAutocall) | |
2733 | auto_rewrite = True |
|
2745 | auto_rewrite = True | |
2734 |
|
2746 | |||
2735 | if pre == self.ESC_QUOTE: |
|
2747 | if pre == self.ESC_QUOTE: | |
2736 | # Auto-quote splitting on whitespace |
|
2748 | # Auto-quote splitting on whitespace | |
2737 | newcmd = '%s("%s")' % (iFun,'", "'.join(theRest.split()) ) |
|
2749 | newcmd = '%s("%s")' % (iFun,'", "'.join(theRest.split()) ) | |
2738 | elif pre == self.ESC_QUOTE2: |
|
2750 | elif pre == self.ESC_QUOTE2: | |
2739 | # Auto-quote whole string |
|
2751 | # Auto-quote whole string | |
2740 | newcmd = '%s("%s")' % (iFun,theRest) |
|
2752 | newcmd = '%s("%s")' % (iFun,theRest) | |
2741 | elif pre == self.ESC_PAREN: |
|
2753 | elif pre == self.ESC_PAREN: | |
2742 | newcmd = '%s(%s)' % (iFun,",".join(theRest.split())) |
|
2754 | newcmd = '%s(%s)' % (iFun,",".join(theRest.split())) | |
2743 | else: |
|
2755 | else: | |
2744 | # Auto-paren. |
|
2756 | # Auto-paren. | |
2745 | # We only apply it to argument-less calls if the autocall |
|
2757 | # We only apply it to argument-less calls if the autocall | |
2746 | # parameter is set to 2. We only need to check that autocall is < |
|
2758 | # parameter is set to 2. We only need to check that autocall is < | |
2747 | # 2, since this function isn't called unless it's at least 1. |
|
2759 | # 2, since this function isn't called unless it's at least 1. | |
2748 | if not theRest and (self.autocall < 2) and not force_auto: |
|
2760 | if not theRest and (self.autocall < 2) and not force_auto: | |
2749 | newcmd = '%s %s' % (iFun,theRest) |
|
2761 | newcmd = '%s %s' % (iFun,theRest) | |
2750 | auto_rewrite = False |
|
2762 | auto_rewrite = False | |
2751 | else: |
|
2763 | else: | |
2752 | if not force_auto and theRest.startswith('['): |
|
2764 | if not force_auto and theRest.startswith('['): | |
2753 | if hasattr(obj,'__getitem__'): |
|
2765 | if hasattr(obj,'__getitem__'): | |
2754 | # Don't autocall in this case: item access for an object |
|
2766 | # Don't autocall in this case: item access for an object | |
2755 | # which is BOTH callable and implements __getitem__. |
|
2767 | # which is BOTH callable and implements __getitem__. | |
2756 | newcmd = '%s %s' % (iFun,theRest) |
|
2768 | newcmd = '%s %s' % (iFun,theRest) | |
2757 | auto_rewrite = False |
|
2769 | auto_rewrite = False | |
2758 | else: |
|
2770 | else: | |
2759 | # if the object doesn't support [] access, go ahead and |
|
2771 | # if the object doesn't support [] access, go ahead and | |
2760 | # autocall |
|
2772 | # autocall | |
2761 | newcmd = '%s(%s)' % (iFun.rstrip(),theRest) |
|
2773 | newcmd = '%s(%s)' % (iFun.rstrip(),theRest) | |
2762 | elif theRest.endswith(';'): |
|
2774 | elif theRest.endswith(';'): | |
2763 | newcmd = '%s(%s);' % (iFun.rstrip(),theRest[:-1]) |
|
2775 | newcmd = '%s(%s);' % (iFun.rstrip(),theRest[:-1]) | |
2764 | else: |
|
2776 | else: | |
2765 | newcmd = '%s(%s)' % (iFun.rstrip(), theRest) |
|
2777 | newcmd = '%s(%s)' % (iFun.rstrip(), theRest) | |
2766 |
|
2778 | |||
2767 | if auto_rewrite: |
|
2779 | if auto_rewrite: | |
2768 | rw = self.outputcache.prompt1.auto_rewrite() + newcmd |
|
2780 | rw = self.outputcache.prompt1.auto_rewrite() + newcmd | |
2769 |
|
2781 | |||
2770 | try: |
|
2782 | try: | |
2771 | # plain ascii works better w/ pyreadline, on some machines, so |
|
2783 | # plain ascii works better w/ pyreadline, on some machines, so | |
2772 | # we use it and only print uncolored rewrite if we have unicode |
|
2784 | # we use it and only print uncolored rewrite if we have unicode | |
2773 | rw = str(rw) |
|
2785 | rw = str(rw) | |
2774 | print >>Term.cout, rw |
|
2786 | print >>Term.cout, rw | |
2775 | except UnicodeEncodeError: |
|
2787 | except UnicodeEncodeError: | |
2776 | print "-------------->" + newcmd |
|
2788 | print "-------------->" + newcmd | |
2777 |
|
2789 | |||
2778 | # log what is now valid Python, not the actual user input (without the |
|
2790 | # log what is now valid Python, not the actual user input (without the | |
2779 | # final newline) |
|
2791 | # final newline) | |
2780 | self.log(line,newcmd,continue_prompt) |
|
2792 | self.log(line,newcmd,continue_prompt) | |
2781 | return newcmd |
|
2793 | return newcmd | |
2782 |
|
2794 | |||
2783 | def handle_help(self, line_info): |
|
2795 | def handle_help(self, line_info): | |
2784 | """Try to get some help for the object. |
|
2796 | """Try to get some help for the object. | |
2785 |
|
2797 | |||
2786 | obj? or ?obj -> basic information. |
|
2798 | obj? or ?obj -> basic information. | |
2787 | obj?? or ??obj -> more details. |
|
2799 | obj?? or ??obj -> more details. | |
2788 | """ |
|
2800 | """ | |
2789 |
|
2801 | |||
2790 | line = line_info.line |
|
2802 | line = line_info.line | |
2791 | # We need to make sure that we don't process lines which would be |
|
2803 | # We need to make sure that we don't process lines which would be | |
2792 | # otherwise valid python, such as "x=1 # what?" |
|
2804 | # otherwise valid python, such as "x=1 # what?" | |
2793 | try: |
|
2805 | try: | |
2794 | codeop.compile_command(line) |
|
2806 | codeop.compile_command(line) | |
2795 | except SyntaxError: |
|
2807 | except SyntaxError: | |
2796 | # We should only handle as help stuff which is NOT valid syntax |
|
2808 | # We should only handle as help stuff which is NOT valid syntax | |
2797 | if line[0]==self.ESC_HELP: |
|
2809 | if line[0]==self.ESC_HELP: | |
2798 | line = line[1:] |
|
2810 | line = line[1:] | |
2799 | elif line[-1]==self.ESC_HELP: |
|
2811 | elif line[-1]==self.ESC_HELP: | |
2800 | line = line[:-1] |
|
2812 | line = line[:-1] | |
2801 | self.log(line,'#?'+line,line_info.continue_prompt) |
|
2813 | self.log(line,'#?'+line,line_info.continue_prompt) | |
2802 | if line: |
|
2814 | if line: | |
2803 | #print 'line:<%r>' % line # dbg |
|
2815 | #print 'line:<%r>' % line # dbg | |
2804 | self.magic_pinfo(line) |
|
2816 | self.magic_pinfo(line) | |
2805 | else: |
|
2817 | else: | |
2806 | page(self.usage,screen_lines=self.usable_screen_length) |
|
2818 | page(self.usage,screen_lines=self.usable_screen_length) | |
2807 | return '' # Empty string is needed here! |
|
2819 | return '' # Empty string is needed here! | |
2808 | except: |
|
2820 | except: | |
2809 | # Pass any other exceptions through to the normal handler |
|
2821 | # Pass any other exceptions through to the normal handler | |
2810 | return self.handle_normal(line_info) |
|
2822 | return self.handle_normal(line_info) | |
2811 | else: |
|
2823 | else: | |
2812 | # If the code compiles ok, we should handle it normally |
|
2824 | # If the code compiles ok, we should handle it normally | |
2813 | return self.handle_normal(line_info) |
|
2825 | return self.handle_normal(line_info) | |
2814 |
|
2826 | |||
2815 | def handle_emacs(self, line_info): |
|
2827 | def handle_emacs(self, line_info): | |
2816 | """Handle input lines marked by python-mode.""" |
|
2828 | """Handle input lines marked by python-mode.""" | |
2817 |
|
2829 | |||
2818 | # Currently, nothing is done. Later more functionality can be added |
|
2830 | # Currently, nothing is done. Later more functionality can be added | |
2819 | # here if needed. |
|
2831 | # here if needed. | |
2820 |
|
2832 | |||
2821 | # The input cache shouldn't be updated |
|
2833 | # The input cache shouldn't be updated | |
2822 | return line_info.line |
|
2834 | return line_info.line | |
2823 |
|
2835 | |||
2824 | def var_expand(self,cmd,depth=0): |
|
2836 | def var_expand(self,cmd,depth=0): | |
2825 | """Expand python variables in a string. |
|
2837 | """Expand python variables in a string. | |
2826 |
|
2838 | |||
2827 | The depth argument indicates how many frames above the caller should |
|
2839 | The depth argument indicates how many frames above the caller should | |
2828 | be walked to look for the local namespace where to expand variables. |
|
2840 | be walked to look for the local namespace where to expand variables. | |
2829 |
|
2841 | |||
2830 | The global namespace for expansion is always the user's interactive |
|
2842 | The global namespace for expansion is always the user's interactive | |
2831 | namespace. |
|
2843 | namespace. | |
2832 | """ |
|
2844 | """ | |
2833 |
|
2845 | |||
2834 | return str(ItplNS(cmd, |
|
2846 | return str(ItplNS(cmd, | |
2835 | self.user_ns, # globals |
|
2847 | self.user_ns, # globals | |
2836 | # Skip our own frame in searching for locals: |
|
2848 | # Skip our own frame in searching for locals: | |
2837 | sys._getframe(depth+1).f_locals # locals |
|
2849 | sys._getframe(depth+1).f_locals # locals | |
2838 | )) |
|
2850 | )) | |
2839 |
|
2851 | |||
2840 | def mktempfile(self,data=None): |
|
2852 | def mktempfile(self,data=None): | |
2841 | """Make a new tempfile and return its filename. |
|
2853 | """Make a new tempfile and return its filename. | |
2842 |
|
2854 | |||
2843 | This makes a call to tempfile.mktemp, but it registers the created |
|
2855 | This makes a call to tempfile.mktemp, but it registers the created | |
2844 | filename internally so ipython cleans it up at exit time. |
|
2856 | filename internally so ipython cleans it up at exit time. | |
2845 |
|
2857 | |||
2846 | Optional inputs: |
|
2858 | Optional inputs: | |
2847 |
|
2859 | |||
2848 | - data(None): if data is given, it gets written out to the temp file |
|
2860 | - data(None): if data is given, it gets written out to the temp file | |
2849 | immediately, and the file is closed again.""" |
|
2861 | immediately, and the file is closed again.""" | |
2850 |
|
2862 | |||
2851 | filename = tempfile.mktemp('.py','ipython_edit_') |
|
2863 | filename = tempfile.mktemp('.py','ipython_edit_') | |
2852 | self.tempfiles.append(filename) |
|
2864 | self.tempfiles.append(filename) | |
2853 |
|
2865 | |||
2854 | if data: |
|
2866 | if data: | |
2855 | tmp_file = open(filename,'w') |
|
2867 | tmp_file = open(filename,'w') | |
2856 | tmp_file.write(data) |
|
2868 | tmp_file.write(data) | |
2857 | tmp_file.close() |
|
2869 | tmp_file.close() | |
2858 | return filename |
|
2870 | return filename | |
2859 |
|
2871 | |||
2860 | def write(self,data): |
|
2872 | def write(self,data): | |
2861 | """Write a string to the default output""" |
|
2873 | """Write a string to the default output""" | |
2862 | Term.cout.write(data) |
|
2874 | Term.cout.write(data) | |
2863 |
|
2875 | |||
2864 | def write_err(self,data): |
|
2876 | def write_err(self,data): | |
2865 | """Write a string to the default error output""" |
|
2877 | """Write a string to the default error output""" | |
2866 | Term.cerr.write(data) |
|
2878 | Term.cerr.write(data) | |
2867 |
|
2879 | |||
2868 | def ask_exit(self): |
|
2880 | def ask_exit(self): | |
2869 | """ Call for exiting. Can be overiden and used as a callback. """ |
|
2881 | """ Call for exiting. Can be overiden and used as a callback. """ | |
2870 | self.exit_now = True |
|
2882 | self.exit_now = True | |
2871 |
|
2883 | |||
2872 | def exit(self): |
|
2884 | def exit(self): | |
2873 | """Handle interactive exit. |
|
2885 | """Handle interactive exit. | |
2874 |
|
2886 | |||
2875 | This method calls the ask_exit callback.""" |
|
2887 | This method calls the ask_exit callback.""" | |
2876 | if self.confirm_exit: |
|
2888 | if self.confirm_exit: | |
2877 | if self.ask_yes_no('Do you really want to exit ([y]/n)?','y'): |
|
2889 | if self.ask_yes_no('Do you really want to exit ([y]/n)?','y'): | |
2878 | self.ask_exit() |
|
2890 | self.ask_exit() | |
2879 | else: |
|
2891 | else: | |
2880 | self.ask_exit() |
|
2892 | self.ask_exit() | |
2881 |
|
2893 | |||
2882 | def safe_execfile(self,fname,*where,**kw): |
|
2894 | def safe_execfile(self,fname,*where,**kw): | |
2883 | """A safe version of the builtin execfile(). |
|
2895 | """A safe version of the builtin execfile(). | |
2884 |
|
2896 | |||
2885 | This version will never throw an exception, and knows how to handle |
|
2897 | This version will never throw an exception, and knows how to handle | |
2886 | ipython logs as well. |
|
2898 | ipython logs as well. | |
2887 |
|
2899 | |||
2888 | :Parameters: |
|
2900 | :Parameters: | |
2889 | fname : string |
|
2901 | fname : string | |
2890 | Name of the file to be executed. |
|
2902 | Name of the file to be executed. | |
2891 |
|
2903 | |||
2892 | where : tuple |
|
2904 | where : tuple | |
2893 | One or two namespaces, passed to execfile() as (globals,locals). |
|
2905 | One or two namespaces, passed to execfile() as (globals,locals). | |
2894 | If only one is given, it is passed as both. |
|
2906 | If only one is given, it is passed as both. | |
2895 |
|
2907 | |||
2896 | :Keywords: |
|
2908 | :Keywords: | |
2897 | islog : boolean (False) |
|
2909 | islog : boolean (False) | |
2898 |
|
2910 | |||
2899 | quiet : boolean (True) |
|
2911 | quiet : boolean (True) | |
2900 |
|
2912 | |||
2901 | exit_ignore : boolean (False) |
|
2913 | exit_ignore : boolean (False) | |
2902 | """ |
|
2914 | """ | |
2903 |
|
2915 | |||
2904 | def syspath_cleanup(): |
|
2916 | def syspath_cleanup(): | |
2905 | """Internal cleanup routine for sys.path.""" |
|
2917 | """Internal cleanup routine for sys.path.""" | |
2906 | if add_dname: |
|
2918 | if add_dname: | |
2907 | try: |
|
2919 | try: | |
2908 | sys.path.remove(dname) |
|
2920 | sys.path.remove(dname) | |
2909 | except ValueError: |
|
2921 | except ValueError: | |
2910 | # For some reason the user has already removed it, ignore. |
|
2922 | # For some reason the user has already removed it, ignore. | |
2911 | pass |
|
2923 | pass | |
2912 |
|
2924 | |||
2913 | fname = os.path.expanduser(fname) |
|
2925 | fname = os.path.expanduser(fname) | |
2914 |
|
2926 | |||
2915 | # Find things also in current directory. This is needed to mimic the |
|
2927 | # Find things also in current directory. This is needed to mimic the | |
2916 | # behavior of running a script from the system command line, where |
|
2928 | # behavior of running a script from the system command line, where | |
2917 | # Python inserts the script's directory into sys.path |
|
2929 | # Python inserts the script's directory into sys.path | |
2918 | dname = os.path.dirname(os.path.abspath(fname)) |
|
2930 | dname = os.path.dirname(os.path.abspath(fname)) | |
2919 | add_dname = False |
|
2931 | add_dname = False | |
2920 | if dname not in sys.path: |
|
2932 | if dname not in sys.path: | |
2921 | sys.path.insert(0,dname) |
|
2933 | sys.path.insert(0,dname) | |
2922 | add_dname = True |
|
2934 | add_dname = True | |
2923 |
|
2935 | |||
2924 | try: |
|
2936 | try: | |
2925 | xfile = open(fname) |
|
2937 | xfile = open(fname) | |
2926 | except: |
|
2938 | except: | |
2927 | print >> Term.cerr, \ |
|
2939 | print >> Term.cerr, \ | |
2928 | 'Could not open file <%s> for safe execution.' % fname |
|
2940 | 'Could not open file <%s> for safe execution.' % fname | |
2929 | syspath_cleanup() |
|
2941 | syspath_cleanup() | |
2930 | return None |
|
2942 | return None | |
2931 |
|
2943 | |||
2932 | kw.setdefault('islog',0) |
|
2944 | kw.setdefault('islog',0) | |
2933 | kw.setdefault('quiet',1) |
|
2945 | kw.setdefault('quiet',1) | |
2934 | kw.setdefault('exit_ignore',0) |
|
2946 | kw.setdefault('exit_ignore',0) | |
2935 |
|
2947 | |||
2936 | first = xfile.readline() |
|
2948 | first = xfile.readline() | |
2937 | loghead = str(self.loghead_tpl).split('\n',1)[0].strip() |
|
2949 | loghead = str(self.loghead_tpl).split('\n',1)[0].strip() | |
2938 | xfile.close() |
|
2950 | xfile.close() | |
2939 | # line by line execution |
|
2951 | # line by line execution | |
2940 | if first.startswith(loghead) or kw['islog']: |
|
2952 | if first.startswith(loghead) or kw['islog']: | |
2941 | print 'Loading log file <%s> one line at a time...' % fname |
|
2953 | print 'Loading log file <%s> one line at a time...' % fname | |
2942 | if kw['quiet']: |
|
2954 | if kw['quiet']: | |
2943 | stdout_save = sys.stdout |
|
2955 | stdout_save = sys.stdout | |
2944 | sys.stdout = StringIO.StringIO() |
|
2956 | sys.stdout = StringIO.StringIO() | |
2945 | try: |
|
2957 | try: | |
2946 | globs,locs = where[0:2] |
|
2958 | globs,locs = where[0:2] | |
2947 | except: |
|
2959 | except: | |
2948 | try: |
|
2960 | try: | |
2949 | globs = locs = where[0] |
|
2961 | globs = locs = where[0] | |
2950 | except: |
|
2962 | except: | |
2951 | globs = locs = globals() |
|
2963 | globs = locs = globals() | |
2952 | badblocks = [] |
|
2964 | badblocks = [] | |
2953 |
|
2965 | |||
2954 | # we also need to identify indented blocks of code when replaying |
|
2966 | # we also need to identify indented blocks of code when replaying | |
2955 | # logs and put them together before passing them to an exec |
|
2967 | # logs and put them together before passing them to an exec | |
2956 | # statement. This takes a bit of regexp and look-ahead work in the |
|
2968 | # statement. This takes a bit of regexp and look-ahead work in the | |
2957 | # file. It's easiest if we swallow the whole thing in memory |
|
2969 | # file. It's easiest if we swallow the whole thing in memory | |
2958 | # first, and manually walk through the lines list moving the |
|
2970 | # first, and manually walk through the lines list moving the | |
2959 | # counter ourselves. |
|
2971 | # counter ourselves. | |
2960 | indent_re = re.compile('\s+\S') |
|
2972 | indent_re = re.compile('\s+\S') | |
2961 | xfile = open(fname) |
|
2973 | xfile = open(fname) | |
2962 | filelines = xfile.readlines() |
|
2974 | filelines = xfile.readlines() | |
2963 | xfile.close() |
|
2975 | xfile.close() | |
2964 | nlines = len(filelines) |
|
2976 | nlines = len(filelines) | |
2965 | lnum = 0 |
|
2977 | lnum = 0 | |
2966 | while lnum < nlines: |
|
2978 | while lnum < nlines: | |
2967 | line = filelines[lnum] |
|
2979 | line = filelines[lnum] | |
2968 | lnum += 1 |
|
2980 | lnum += 1 | |
2969 | # don't re-insert logger status info into cache |
|
2981 | # don't re-insert logger status info into cache | |
2970 | if line.startswith('#log#'): |
|
2982 | if line.startswith('#log#'): | |
2971 | continue |
|
2983 | continue | |
2972 | else: |
|
2984 | else: | |
2973 | # build a block of code (maybe a single line) for execution |
|
2985 | # build a block of code (maybe a single line) for execution | |
2974 | block = line |
|
2986 | block = line | |
2975 | try: |
|
2987 | try: | |
2976 | next = filelines[lnum] # lnum has already incremented |
|
2988 | next = filelines[lnum] # lnum has already incremented | |
2977 | except: |
|
2989 | except: | |
2978 | next = None |
|
2990 | next = None | |
2979 | while next and indent_re.match(next): |
|
2991 | while next and indent_re.match(next): | |
2980 | block += next |
|
2992 | block += next | |
2981 | lnum += 1 |
|
2993 | lnum += 1 | |
2982 | try: |
|
2994 | try: | |
2983 | next = filelines[lnum] |
|
2995 | next = filelines[lnum] | |
2984 | except: |
|
2996 | except: | |
2985 | next = None |
|
2997 | next = None | |
2986 | # now execute the block of one or more lines |
|
2998 | # now execute the block of one or more lines | |
2987 | try: |
|
2999 | try: | |
2988 | exec block in globs,locs |
|
3000 | exec block in globs,locs | |
2989 | except SystemExit: |
|
3001 | except SystemExit: | |
2990 | pass |
|
3002 | pass | |
2991 | except: |
|
3003 | except: | |
2992 | badblocks.append(block.rstrip()) |
|
3004 | badblocks.append(block.rstrip()) | |
2993 | if kw['quiet']: # restore stdout |
|
3005 | if kw['quiet']: # restore stdout | |
2994 | sys.stdout.close() |
|
3006 | sys.stdout.close() | |
2995 | sys.stdout = stdout_save |
|
3007 | sys.stdout = stdout_save | |
2996 | print 'Finished replaying log file <%s>' % fname |
|
3008 | print 'Finished replaying log file <%s>' % fname | |
2997 | if badblocks: |
|
3009 | if badblocks: | |
2998 | print >> sys.stderr, ('\nThe following lines/blocks in file ' |
|
3010 | print >> sys.stderr, ('\nThe following lines/blocks in file ' | |
2999 | '<%s> reported errors:' % fname) |
|
3011 | '<%s> reported errors:' % fname) | |
3000 |
|
3012 | |||
3001 | for badline in badblocks: |
|
3013 | for badline in badblocks: | |
3002 | print >> sys.stderr, badline |
|
3014 | print >> sys.stderr, badline | |
3003 | else: # regular file execution |
|
3015 | else: # regular file execution | |
3004 | try: |
|
3016 | try: | |
3005 | if sys.platform == 'win32' and sys.version_info < (2,5,1): |
|
3017 | if sys.platform == 'win32' and sys.version_info < (2,5,1): | |
3006 | # Work around a bug in Python for Windows. The bug was |
|
3018 | # Work around a bug in Python for Windows. The bug was | |
3007 | # fixed in in Python 2.5 r54159 and 54158, but that's still |
|
3019 | # fixed in in Python 2.5 r54159 and 54158, but that's still | |
3008 | # SVN Python as of March/07. For details, see: |
|
3020 | # SVN Python as of March/07. For details, see: | |
3009 | # http://projects.scipy.org/ipython/ipython/ticket/123 |
|
3021 | # http://projects.scipy.org/ipython/ipython/ticket/123 | |
3010 | try: |
|
3022 | try: | |
3011 | globs,locs = where[0:2] |
|
3023 | globs,locs = where[0:2] | |
3012 | except: |
|
3024 | except: | |
3013 | try: |
|
3025 | try: | |
3014 | globs = locs = where[0] |
|
3026 | globs = locs = where[0] | |
3015 | except: |
|
3027 | except: | |
3016 | globs = locs = globals() |
|
3028 | globs = locs = globals() | |
3017 | exec file(fname) in globs,locs |
|
3029 | exec file(fname) in globs,locs | |
3018 | else: |
|
3030 | else: | |
3019 | execfile(fname,*where) |
|
3031 | execfile(fname,*where) | |
3020 | except SyntaxError: |
|
3032 | except SyntaxError: | |
3021 | self.showsyntaxerror() |
|
3033 | self.showsyntaxerror() | |
3022 | warn('Failure executing file: <%s>' % fname) |
|
3034 | warn('Failure executing file: <%s>' % fname) | |
3023 | except SystemExit,status: |
|
3035 | except SystemExit,status: | |
3024 | # Code that correctly sets the exit status flag to success (0) |
|
3036 | # Code that correctly sets the exit status flag to success (0) | |
3025 | # shouldn't be bothered with a traceback. Note that a plain |
|
3037 | # shouldn't be bothered with a traceback. Note that a plain | |
3026 | # sys.exit() does NOT set the message to 0 (it's empty) so that |
|
3038 | # sys.exit() does NOT set the message to 0 (it's empty) so that | |
3027 | # will still get a traceback. Note that the structure of the |
|
3039 | # will still get a traceback. Note that the structure of the | |
3028 | # SystemExit exception changed between Python 2.4 and 2.5, so |
|
3040 | # SystemExit exception changed between Python 2.4 and 2.5, so | |
3029 | # the checks must be done in a version-dependent way. |
|
3041 | # the checks must be done in a version-dependent way. | |
3030 | show = False |
|
3042 | show = False | |
3031 |
|
3043 | |||
3032 | if sys.version_info[:2] > (2,5): |
|
3044 | if sys.version_info[:2] > (2,5): | |
3033 | if status.message!=0 and not kw['exit_ignore']: |
|
3045 | if status.message!=0 and not kw['exit_ignore']: | |
3034 | show = True |
|
3046 | show = True | |
3035 | else: |
|
3047 | else: | |
3036 | if status.code and not kw['exit_ignore']: |
|
3048 | if status.code and not kw['exit_ignore']: | |
3037 | show = True |
|
3049 | show = True | |
3038 | if show: |
|
3050 | if show: | |
3039 | self.showtraceback() |
|
3051 | self.showtraceback() | |
3040 | warn('Failure executing file: <%s>' % fname) |
|
3052 | warn('Failure executing file: <%s>' % fname) | |
3041 | except: |
|
3053 | except: | |
3042 | self.showtraceback() |
|
3054 | self.showtraceback() | |
3043 | warn('Failure executing file: <%s>' % fname) |
|
3055 | warn('Failure executing file: <%s>' % fname) | |
3044 |
|
3056 | |||
3045 | syspath_cleanup() |
|
3057 | syspath_cleanup() | |
3046 |
|
3058 | |||
3047 | #************************* end of file <iplib.py> ***************************** |
|
3059 | #************************* end of file <iplib.py> ***************************** |
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