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@@ -1,181 +1,184 b'' | |||||
1 | # encoding: utf-8 |
|
1 | # encoding: utf-8 | |
2 | """A class for managing IPython extensions. |
|
2 | """A class for managing IPython extensions. | |
3 |
|
3 | |||
4 | Authors: |
|
4 | Authors: | |
5 |
|
5 | |||
6 | * Brian Granger |
|
6 | * Brian Granger | |
7 | """ |
|
7 | """ | |
8 |
|
8 | |||
9 | #----------------------------------------------------------------------------- |
|
9 | #----------------------------------------------------------------------------- | |
10 | # Copyright (C) 2010-2011 The IPython Development Team |
|
10 | # Copyright (C) 2010-2011 The IPython Development Team | |
11 | # |
|
11 | # | |
12 | # Distributed under the terms of the BSD License. The full license is in |
|
12 | # Distributed under the terms of the BSD License. The full license is in | |
13 | # the file COPYING, distributed as part of this software. |
|
13 | # the file COPYING, distributed as part of this software. | |
14 | #----------------------------------------------------------------------------- |
|
14 | #----------------------------------------------------------------------------- | |
15 |
|
15 | |||
16 | #----------------------------------------------------------------------------- |
|
16 | #----------------------------------------------------------------------------- | |
17 | # Imports |
|
17 | # Imports | |
18 | #----------------------------------------------------------------------------- |
|
18 | #----------------------------------------------------------------------------- | |
19 |
|
19 | |||
20 | import os |
|
20 | import os | |
21 | from shutil import copyfile |
|
21 | from shutil import copyfile | |
22 | import sys |
|
22 | import sys | |
23 | from urllib import urlretrieve |
|
23 | from urllib import urlretrieve | |
24 | from urlparse import urlparse |
|
24 | from urlparse import urlparse | |
25 |
|
25 | |||
26 | from IPython.core.error import UsageError |
|
26 | from IPython.core.error import UsageError | |
27 | from IPython.config.configurable import Configurable |
|
27 | from IPython.config.configurable import Configurable | |
28 | from IPython.utils.traitlets import Instance |
|
28 | from IPython.utils.traitlets import Instance | |
29 | from IPython.utils.py3compat import PY3 |
|
29 | from IPython.utils.py3compat import PY3 | |
30 | if PY3: |
|
30 | if PY3: | |
31 | from imp import reload |
|
31 | from imp import reload | |
32 |
|
32 | |||
33 | #----------------------------------------------------------------------------- |
|
33 | #----------------------------------------------------------------------------- | |
34 | # Main class |
|
34 | # Main class | |
35 | #----------------------------------------------------------------------------- |
|
35 | #----------------------------------------------------------------------------- | |
36 |
|
36 | |||
37 | class ExtensionManager(Configurable): |
|
37 | class ExtensionManager(Configurable): | |
38 | """A class to manage IPython extensions. |
|
38 | """A class to manage IPython extensions. | |
39 |
|
39 | |||
40 | An IPython extension is an importable Python module that has |
|
40 | An IPython extension is an importable Python module that has | |
41 | a function with the signature:: |
|
41 | a function with the signature:: | |
42 |
|
42 | |||
43 | def load_ipython_extension(ipython): |
|
43 | def load_ipython_extension(ipython): | |
44 | # Do things with ipython |
|
44 | # Do things with ipython | |
45 |
|
45 | |||
46 | This function is called after your extension is imported and the |
|
46 | This function is called after your extension is imported and the | |
47 | currently active :class:`InteractiveShell` instance is passed as |
|
47 | currently active :class:`InteractiveShell` instance is passed as | |
48 | the only argument. You can do anything you want with IPython at |
|
48 | the only argument. You can do anything you want with IPython at | |
49 | that point, including defining new magic and aliases, adding new |
|
49 | that point, including defining new magic and aliases, adding new | |
50 | components, etc. |
|
50 | components, etc. | |
51 |
|
51 | |||
52 | You can also optionaly define an :func:`unload_ipython_extension(ipython)` |
|
52 | You can also optionaly define an :func:`unload_ipython_extension(ipython)` | |
53 | function, which will be called if the user unloads or reloads the extension. |
|
53 | function, which will be called if the user unloads or reloads the extension. | |
54 | The extension manager will only call :func:`load_ipython_extension` again |
|
54 | The extension manager will only call :func:`load_ipython_extension` again | |
55 | if the extension is reloaded. |
|
55 | if the extension is reloaded. | |
56 |
|
56 | |||
57 | You can put your extension modules anywhere you want, as long as |
|
57 | You can put your extension modules anywhere you want, as long as | |
58 | they can be imported by Python's standard import mechanism. However, |
|
58 | they can be imported by Python's standard import mechanism. However, | |
59 | to make it easy to write extensions, you can also put your extensions |
|
59 | to make it easy to write extensions, you can also put your extensions | |
60 | in ``os.path.join(self.ipython_dir, 'extensions')``. This directory |
|
60 | in ``os.path.join(self.ipython_dir, 'extensions')``. This directory | |
61 | is added to ``sys.path`` automatically. |
|
61 | is added to ``sys.path`` automatically. | |
62 | """ |
|
62 | """ | |
63 |
|
63 | |||
64 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') |
|
64 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') | |
65 |
|
65 | |||
66 | def __init__(self, shell=None, config=None): |
|
66 | def __init__(self, shell=None, config=None): | |
67 | super(ExtensionManager, self).__init__(shell=shell, config=config) |
|
67 | super(ExtensionManager, self).__init__(shell=shell, config=config) | |
68 | self.shell.on_trait_change( |
|
68 | self.shell.on_trait_change( | |
69 | self._on_ipython_dir_changed, 'ipython_dir' |
|
69 | self._on_ipython_dir_changed, 'ipython_dir' | |
70 | ) |
|
70 | ) | |
71 | self.loaded = set() |
|
71 | self.loaded = set() | |
72 |
|
72 | |||
73 | def __del__(self): |
|
73 | def __del__(self): | |
74 | self.shell.on_trait_change( |
|
74 | self.shell.on_trait_change( | |
75 | self._on_ipython_dir_changed, 'ipython_dir', remove=True |
|
75 | self._on_ipython_dir_changed, 'ipython_dir', remove=True | |
76 | ) |
|
76 | ) | |
77 |
|
77 | |||
78 | @property |
|
78 | @property | |
79 | def ipython_extension_dir(self): |
|
79 | def ipython_extension_dir(self): | |
80 | return os.path.join(self.shell.ipython_dir, u'extensions') |
|
80 | return os.path.join(self.shell.ipython_dir, u'extensions') | |
81 |
|
81 | |||
82 | def _on_ipython_dir_changed(self): |
|
82 | def _on_ipython_dir_changed(self): | |
83 | if not os.path.isdir(self.ipython_extension_dir): |
|
83 | if not os.path.isdir(self.ipython_extension_dir): | |
84 | os.makedirs(self.ipython_extension_dir, mode = 0o777) |
|
84 | os.makedirs(self.ipython_extension_dir, mode = 0o777) | |
85 |
|
85 | |||
86 | def load_extension(self, module_str): |
|
86 | def load_extension(self, module_str): | |
87 | """Load an IPython extension by its module name. |
|
87 | """Load an IPython extension by its module name. | |
88 |
|
88 | |||
89 | Returns the string "already loaded" if the extension is already loaded, |
|
89 | Returns the string "already loaded" if the extension is already loaded, | |
90 | otherwise None. |
|
90 | "no load function" if the module doesn't have a load_ipython_extension | |
|
91 | function, or None if it succeeded. | |||
91 | """ |
|
92 | """ | |
92 | if module_str in self.loaded: |
|
93 | if module_str in self.loaded: | |
93 | return "already loaded" |
|
94 | return "already loaded" | |
94 |
|
95 | |||
95 | from IPython.utils.syspathcontext import prepended_to_syspath |
|
96 | from IPython.utils.syspathcontext import prepended_to_syspath | |
96 |
|
97 | |||
97 | if module_str not in sys.modules: |
|
98 | if module_str not in sys.modules: | |
98 | with prepended_to_syspath(self.ipython_extension_dir): |
|
99 | with prepended_to_syspath(self.ipython_extension_dir): | |
99 | __import__(module_str) |
|
100 | __import__(module_str) | |
100 | mod = sys.modules[module_str] |
|
101 | mod = sys.modules[module_str] | |
101 | if self._call_load_ipython_extension(mod): |
|
102 | if self._call_load_ipython_extension(mod): | |
102 | self.loaded.add(module_str) |
|
103 | self.loaded.add(module_str) | |
|
104 | else: | |||
|
105 | return "no load function" | |||
103 |
|
106 | |||
104 | def unload_extension(self, module_str): |
|
107 | def unload_extension(self, module_str): | |
105 | """Unload an IPython extension by its module name. |
|
108 | """Unload an IPython extension by its module name. | |
106 |
|
109 | |||
107 | This function looks up the extension's name in ``sys.modules`` and |
|
110 | This function looks up the extension's name in ``sys.modules`` and | |
108 | simply calls ``mod.unload_ipython_extension(self)``. |
|
111 | simply calls ``mod.unload_ipython_extension(self)``. | |
109 |
|
112 | |||
110 | Returns the string "no unload function" if the extension doesn't define |
|
113 | Returns the string "no unload function" if the extension doesn't define | |
111 | a function to unload itself, "not loaded" if the extension isn't loaded, |
|
114 | a function to unload itself, "not loaded" if the extension isn't loaded, | |
112 | otherwise None. |
|
115 | otherwise None. | |
113 | """ |
|
116 | """ | |
114 | if module_str not in self.loaded: |
|
117 | if module_str not in self.loaded: | |
115 | return "not loaded" |
|
118 | return "not loaded" | |
116 |
|
119 | |||
117 | if module_str in sys.modules: |
|
120 | if module_str in sys.modules: | |
118 | mod = sys.modules[module_str] |
|
121 | mod = sys.modules[module_str] | |
119 | if self._call_unload_ipython_extension(mod): |
|
122 | if self._call_unload_ipython_extension(mod): | |
120 | self.loaded.discard(module_str) |
|
123 | self.loaded.discard(module_str) | |
121 | else: |
|
124 | else: | |
122 | return "no unload function" |
|
125 | return "no unload function" | |
123 |
|
126 | |||
124 | def reload_extension(self, module_str): |
|
127 | def reload_extension(self, module_str): | |
125 | """Reload an IPython extension by calling reload. |
|
128 | """Reload an IPython extension by calling reload. | |
126 |
|
129 | |||
127 | If the module has not been loaded before, |
|
130 | If the module has not been loaded before, | |
128 | :meth:`InteractiveShell.load_extension` is called. Otherwise |
|
131 | :meth:`InteractiveShell.load_extension` is called. Otherwise | |
129 | :func:`reload` is called and then the :func:`load_ipython_extension` |
|
132 | :func:`reload` is called and then the :func:`load_ipython_extension` | |
130 | function of the module, if it exists is called. |
|
133 | function of the module, if it exists is called. | |
131 | """ |
|
134 | """ | |
132 | from IPython.utils.syspathcontext import prepended_to_syspath |
|
135 | from IPython.utils.syspathcontext import prepended_to_syspath | |
133 |
|
136 | |||
134 | if (module_str in self.loaded) and (module_str in sys.modules): |
|
137 | if (module_str in self.loaded) and (module_str in sys.modules): | |
135 | self.unload_extension(module_str) |
|
138 | self.unload_extension(module_str) | |
136 | mod = sys.modules[module_str] |
|
139 | mod = sys.modules[module_str] | |
137 | with prepended_to_syspath(self.ipython_extension_dir): |
|
140 | with prepended_to_syspath(self.ipython_extension_dir): | |
138 | reload(mod) |
|
141 | reload(mod) | |
139 | if self._call_load_ipython_extension(mod): |
|
142 | if self._call_load_ipython_extension(mod): | |
140 | self.loaded.add(module_str) |
|
143 | self.loaded.add(module_str) | |
141 | else: |
|
144 | else: | |
142 | self.load_extension(module_str) |
|
145 | self.load_extension(module_str) | |
143 |
|
146 | |||
144 | def _call_load_ipython_extension(self, mod): |
|
147 | def _call_load_ipython_extension(self, mod): | |
145 | if hasattr(mod, 'load_ipython_extension'): |
|
148 | if hasattr(mod, 'load_ipython_extension'): | |
146 | mod.load_ipython_extension(self.shell) |
|
149 | mod.load_ipython_extension(self.shell) | |
147 | return True |
|
150 | return True | |
148 |
|
151 | |||
149 | def _call_unload_ipython_extension(self, mod): |
|
152 | def _call_unload_ipython_extension(self, mod): | |
150 | if hasattr(mod, 'unload_ipython_extension'): |
|
153 | if hasattr(mod, 'unload_ipython_extension'): | |
151 | mod.unload_ipython_extension(self.shell) |
|
154 | mod.unload_ipython_extension(self.shell) | |
152 | return True |
|
155 | return True | |
153 |
|
156 | |||
154 | def install_extension(self, url, filename=None): |
|
157 | def install_extension(self, url, filename=None): | |
155 | """Download and install an IPython extension. |
|
158 | """Download and install an IPython extension. | |
156 |
|
159 | |||
157 | If filename is given, the file will be so named (inside the extension |
|
160 | If filename is given, the file will be so named (inside the extension | |
158 | directory). Otherwise, the name from the URL will be used. The file must |
|
161 | directory). Otherwise, the name from the URL will be used. The file must | |
159 | have a .py or .zip extension; otherwise, a ValueError will be raised. |
|
162 | have a .py or .zip extension; otherwise, a ValueError will be raised. | |
160 |
|
163 | |||
161 | Returns the full path to the installed file. |
|
164 | Returns the full path to the installed file. | |
162 | """ |
|
165 | """ | |
163 | # Ensure the extension directory exists |
|
166 | # Ensure the extension directory exists | |
164 | if not os.path.isdir(self.ipython_extension_dir): |
|
167 | if not os.path.isdir(self.ipython_extension_dir): | |
165 | os.makedirs(self.ipython_extension_dir, mode = 0o777) |
|
168 | os.makedirs(self.ipython_extension_dir, mode = 0o777) | |
166 |
|
169 | |||
167 | if os.path.isfile(url): |
|
170 | if os.path.isfile(url): | |
168 | src_filename = os.path.basename(url) |
|
171 | src_filename = os.path.basename(url) | |
169 | copy = copyfile |
|
172 | copy = copyfile | |
170 | else: |
|
173 | else: | |
171 | src_filename = urlparse(url).path.split('/')[-1] |
|
174 | src_filename = urlparse(url).path.split('/')[-1] | |
172 | copy = urlretrieve |
|
175 | copy = urlretrieve | |
173 |
|
176 | |||
174 | if filename is None: |
|
177 | if filename is None: | |
175 | filename = src_filename |
|
178 | filename = src_filename | |
176 | if os.path.splitext(filename)[1] not in ('.py', '.zip'): |
|
179 | if os.path.splitext(filename)[1] not in ('.py', '.zip'): | |
177 | raise ValueError("The file must have a .py or .zip extension", filename) |
|
180 | raise ValueError("The file must have a .py or .zip extension", filename) | |
178 |
|
181 | |||
179 | filename = os.path.join(self.ipython_extension_dir, filename) |
|
182 | filename = os.path.join(self.ipython_extension_dir, filename) | |
180 | copy(url, filename) |
|
183 | copy(url, filename) | |
181 | return filename |
|
184 | return filename |
@@ -1,88 +1,92 b'' | |||||
1 | """Implementation of magic functions for the extension machinery. |
|
1 | """Implementation of magic functions for the extension machinery. | |
2 | """ |
|
2 | """ | |
3 | #----------------------------------------------------------------------------- |
|
3 | #----------------------------------------------------------------------------- | |
4 | # Copyright (c) 2012 The IPython Development Team. |
|
4 | # Copyright (c) 2012 The IPython Development Team. | |
5 | # |
|
5 | # | |
6 | # Distributed under the terms of the Modified BSD License. |
|
6 | # Distributed under the terms of the Modified BSD License. | |
7 | # |
|
7 | # | |
8 | # The full license is in the file COPYING.txt, distributed with this software. |
|
8 | # The full license is in the file COPYING.txt, distributed with this software. | |
9 | #----------------------------------------------------------------------------- |
|
9 | #----------------------------------------------------------------------------- | |
10 |
|
10 | |||
11 | #----------------------------------------------------------------------------- |
|
11 | #----------------------------------------------------------------------------- | |
12 | # Imports |
|
12 | # Imports | |
13 | #----------------------------------------------------------------------------- |
|
13 | #----------------------------------------------------------------------------- | |
14 |
|
14 | |||
15 | # Stdlib |
|
15 | # Stdlib | |
16 | import os |
|
16 | import os | |
17 |
|
17 | |||
18 | # Our own packages |
|
18 | # Our own packages | |
19 | from IPython.core.error import UsageError |
|
19 | from IPython.core.error import UsageError | |
20 | from IPython.core.magic import Magics, magics_class, line_magic |
|
20 | from IPython.core.magic import Magics, magics_class, line_magic | |
21 |
|
21 | |||
22 | #----------------------------------------------------------------------------- |
|
22 | #----------------------------------------------------------------------------- | |
23 | # Magic implementation classes |
|
23 | # Magic implementation classes | |
24 | #----------------------------------------------------------------------------- |
|
24 | #----------------------------------------------------------------------------- | |
25 |
|
25 | |||
26 | @magics_class |
|
26 | @magics_class | |
27 | class ExtensionMagics(Magics): |
|
27 | class ExtensionMagics(Magics): | |
28 | """Magics to manage the IPython extensions system.""" |
|
28 | """Magics to manage the IPython extensions system.""" | |
29 |
|
29 | |||
30 | @line_magic |
|
30 | @line_magic | |
31 | def install_ext(self, parameter_s=''): |
|
31 | def install_ext(self, parameter_s=''): | |
32 | """Download and install an extension from a URL, e.g.:: |
|
32 | """Download and install an extension from a URL, e.g.:: | |
33 |
|
33 | |||
34 | %install_ext https://bitbucket.org/birkenfeld/ipython-physics/raw/d1310a2ab15d/physics.py |
|
34 | %install_ext https://bitbucket.org/birkenfeld/ipython-physics/raw/d1310a2ab15d/physics.py | |
35 |
|
35 | |||
36 | The URL should point to an importable Python module - either a .py file |
|
36 | The URL should point to an importable Python module - either a .py file | |
37 | or a .zip file. |
|
37 | or a .zip file. | |
38 |
|
38 | |||
39 | Parameters: |
|
39 | Parameters: | |
40 |
|
40 | |||
41 | -n filename : Specify a name for the file, rather than taking it from |
|
41 | -n filename : Specify a name for the file, rather than taking it from | |
42 | the URL. |
|
42 | the URL. | |
43 | """ |
|
43 | """ | |
44 | opts, args = self.parse_options(parameter_s, 'n:') |
|
44 | opts, args = self.parse_options(parameter_s, 'n:') | |
45 | try: |
|
45 | try: | |
46 | filename = self.shell.extension_manager.install_extension(args, |
|
46 | filename = self.shell.extension_manager.install_extension(args, | |
47 | opts.get('n')) |
|
47 | opts.get('n')) | |
48 | except ValueError as e: |
|
48 | except ValueError as e: | |
49 | print e |
|
49 | print e | |
50 | return |
|
50 | return | |
51 |
|
51 | |||
52 | filename = os.path.basename(filename) |
|
52 | filename = os.path.basename(filename) | |
53 | print "Installed %s. To use it, type:" % filename |
|
53 | print "Installed %s. To use it, type:" % filename | |
54 | print " %%load_ext %s" % os.path.splitext(filename)[0] |
|
54 | print " %%load_ext %s" % os.path.splitext(filename)[0] | |
55 |
|
55 | |||
56 |
|
56 | |||
57 | @line_magic |
|
57 | @line_magic | |
58 | def load_ext(self, module_str): |
|
58 | def load_ext(self, module_str): | |
59 | """Load an IPython extension by its module name.""" |
|
59 | """Load an IPython extension by its module name.""" | |
60 | if not module_str: |
|
60 | if not module_str: | |
61 | raise UsageError('Missing module name.') |
|
61 | raise UsageError('Missing module name.') | |
62 |
|
|
62 | res = self.shell.extension_manager.load_extension(module_str) | |
|
63 | ||||
|
64 | if res == 'already loaded': | |||
63 | print "The %s extension is already loaded. To reload it, use:" % module_str |
|
65 | print "The %s extension is already loaded. To reload it, use:" % module_str | |
64 | print " %reload_ext", module_str |
|
66 | print " %reload_ext", module_str | |
|
67 | elif res == 'no load function': | |||
|
68 | print "The %s module is not an IPython extension." % module_str | |||
65 |
|
69 | |||
66 | @line_magic |
|
70 | @line_magic | |
67 | def unload_ext(self, module_str): |
|
71 | def unload_ext(self, module_str): | |
68 | """Unload an IPython extension by its module name. |
|
72 | """Unload an IPython extension by its module name. | |
69 |
|
73 | |||
70 | Not all extensions can be unloaded, only those which define an |
|
74 | Not all extensions can be unloaded, only those which define an | |
71 | ``unload_ipython_extension`` function. |
|
75 | ``unload_ipython_extension`` function. | |
72 | """ |
|
76 | """ | |
73 | if not module_str: |
|
77 | if not module_str: | |
74 | raise UsageError('Missing module name.') |
|
78 | raise UsageError('Missing module name.') | |
75 |
|
79 | |||
76 | res = self.shell.extension_manager.unload_extension(module_str) |
|
80 | res = self.shell.extension_manager.unload_extension(module_str) | |
77 |
|
81 | |||
78 | if res == 'no unload function': |
|
82 | if res == 'no unload function': | |
79 | print "The %s extension doesn't define how to unload it." % module_str |
|
83 | print "The %s extension doesn't define how to unload it." % module_str | |
80 | elif res == "not loaded": |
|
84 | elif res == "not loaded": | |
81 | print "The %s extension is not loaded." % module_str |
|
85 | print "The %s extension is not loaded." % module_str | |
82 |
|
86 | |||
83 | @line_magic |
|
87 | @line_magic | |
84 | def reload_ext(self, module_str): |
|
88 | def reload_ext(self, module_str): | |
85 | """Reload an IPython extension by its module name.""" |
|
89 | """Reload an IPython extension by its module name.""" | |
86 | if not module_str: |
|
90 | if not module_str: | |
87 | raise UsageError('Missing module name.') |
|
91 | raise UsageError('Missing module name.') | |
88 | self.shell.extension_manager.reload_extension(module_str) |
|
92 | self.shell.extension_manager.reload_extension(module_str) |
@@ -1,69 +1,73 b'' | |||||
1 | import os.path |
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1 | import os.path | |
2 |
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2 | |||
3 | import nose.tools as nt |
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3 | import nose.tools as nt | |
4 |
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4 | |||
5 | import IPython.testing.tools as tt |
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5 | import IPython.testing.tools as tt | |
6 | from IPython.utils.syspathcontext import prepended_to_syspath |
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6 | from IPython.utils.syspathcontext import prepended_to_syspath | |
7 | from IPython.utils.tempdir import TemporaryDirectory |
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7 | from IPython.utils.tempdir import TemporaryDirectory | |
8 |
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8 | |||
9 | ext1_content = """ |
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9 | ext1_content = """ | |
10 | def load_ipython_extension(ip): |
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10 | def load_ipython_extension(ip): | |
11 | print("Running ext1 load") |
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11 | print("Running ext1 load") | |
12 |
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12 | |||
13 | def unload_ipython_extension(ip): |
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13 | def unload_ipython_extension(ip): | |
14 | print("Running ext1 unload") |
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14 | print("Running ext1 unload") | |
15 | """ |
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15 | """ | |
16 |
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16 | |||
17 | ext2_content = """ |
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17 | ext2_content = """ | |
18 | def load_ipython_extension(ip): |
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18 | def load_ipython_extension(ip): | |
19 | print("Running ext2 load") |
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19 | print("Running ext2 load") | |
20 | """ |
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20 | """ | |
21 |
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21 | |||
22 | def test_extension_loading(): |
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22 | def test_extension_loading(): | |
23 | em = get_ipython().extension_manager |
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23 | em = get_ipython().extension_manager | |
24 | with TemporaryDirectory() as td: |
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24 | with TemporaryDirectory() as td: | |
25 | ext1 = os.path.join(td, 'ext1.py') |
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25 | ext1 = os.path.join(td, 'ext1.py') | |
26 | with open(ext1, 'w') as f: |
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26 | with open(ext1, 'w') as f: | |
27 | f.write(ext1_content) |
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27 | f.write(ext1_content) | |
28 |
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28 | |||
29 | ext2 = os.path.join(td, 'ext2.py') |
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29 | ext2 = os.path.join(td, 'ext2.py') | |
30 | with open(ext2, 'w') as f: |
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30 | with open(ext2, 'w') as f: | |
31 | f.write(ext2_content) |
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31 | f.write(ext2_content) | |
32 |
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32 | |||
33 | with prepended_to_syspath(td): |
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33 | with prepended_to_syspath(td): | |
34 | assert 'ext1' not in em.loaded |
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34 | assert 'ext1' not in em.loaded | |
35 | assert 'ext2' not in em.loaded |
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35 | assert 'ext2' not in em.loaded | |
36 |
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36 | |||
37 | # Load extension |
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37 | # Load extension | |
38 | with tt.AssertPrints("Running ext1 load"): |
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38 | with tt.AssertPrints("Running ext1 load"): | |
39 | assert em.load_extension('ext1') is None |
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39 | assert em.load_extension('ext1') is None | |
40 | assert 'ext1' in em.loaded |
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40 | assert 'ext1' in em.loaded | |
41 |
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41 | |||
42 | # Should refuse to load it again |
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42 | # Should refuse to load it again | |
43 | with tt.AssertNotPrints("Running ext1 load"): |
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43 | with tt.AssertNotPrints("Running ext1 load"): | |
44 | assert em.load_extension('ext1') == 'already loaded' |
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44 | assert em.load_extension('ext1') == 'already loaded' | |
45 |
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45 | |||
46 | # Reload |
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46 | # Reload | |
47 | with tt.AssertPrints("Running ext1 unload"): |
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47 | with tt.AssertPrints("Running ext1 unload"): | |
48 | with tt.AssertPrints("Running ext1 load", suppress=False): |
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48 | with tt.AssertPrints("Running ext1 load", suppress=False): | |
49 | em.reload_extension('ext1') |
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49 | em.reload_extension('ext1') | |
50 |
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50 | |||
51 | # Unload |
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51 | # Unload | |
52 | with tt.AssertPrints("Running ext1 unload"): |
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52 | with tt.AssertPrints("Running ext1 unload"): | |
53 | assert em.unload_extension('ext1') is None |
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53 | assert em.unload_extension('ext1') is None | |
54 |
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54 | |||
55 | # Can't unload again |
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55 | # Can't unload again | |
56 | with tt.AssertNotPrints("Running ext1 unload"): |
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56 | with tt.AssertNotPrints("Running ext1 unload"): | |
57 | assert em.unload_extension('ext1') == 'not loaded' |
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57 | assert em.unload_extension('ext1') == 'not loaded' | |
58 | assert em.unload_extension('ext2') == 'not loaded' |
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58 | assert em.unload_extension('ext2') == 'not loaded' | |
59 |
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59 | |||
60 | # Load extension 2 |
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60 | # Load extension 2 | |
61 | with tt.AssertPrints("Running ext2 load"): |
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61 | with tt.AssertPrints("Running ext2 load"): | |
62 | assert em.load_extension('ext2') is None |
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62 | assert em.load_extension('ext2') is None | |
63 |
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63 | |||
64 | # Can't unload this |
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64 | # Can't unload this | |
65 | assert em.unload_extension('ext2') == 'no unload function' |
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65 | assert em.unload_extension('ext2') == 'no unload function' | |
66 |
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66 | |||
67 | # But can reload it |
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67 | # But can reload it | |
68 | with tt.AssertPrints("Running ext2 load"): |
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68 | with tt.AssertPrints("Running ext2 load"): | |
69 | em.reload_extension('ext2') |
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69 | em.reload_extension('ext2') | |
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70 | ||||
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71 | def test_non_extension(): | |||
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72 | em = get_ipython().extension_manager | |||
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73 | nt.assert_equal(em.load_extension('sys'), "no load function") |
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