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@@ -1,622 +1,623 b'' | |||||
1 | #!/usr/bin/env python |
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1 | #!/usr/bin/env python | |
2 | """A simple interactive kernel that talks to a frontend over 0MQ. |
|
2 | """A simple interactive kernel that talks to a frontend over 0MQ. | |
3 |
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3 | |||
4 | Things to do: |
|
4 | Things to do: | |
5 |
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5 | |||
6 | * Implement `set_parent` logic. Right before doing exec, the Kernel should |
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6 | * Implement `set_parent` logic. Right before doing exec, the Kernel should | |
7 | call set_parent on all the PUB objects with the message about to be executed. |
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7 | call set_parent on all the PUB objects with the message about to be executed. | |
8 | * Implement random port and security key logic. |
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8 | * Implement random port and security key logic. | |
9 | * Implement control messages. |
|
9 | * Implement control messages. | |
10 | * Implement event loop and poll version. |
|
10 | * Implement event loop and poll version. | |
11 | """ |
|
11 | """ | |
12 |
|
12 | |||
13 | #----------------------------------------------------------------------------- |
|
13 | #----------------------------------------------------------------------------- | |
14 | # Imports |
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14 | # Imports | |
15 | #----------------------------------------------------------------------------- |
|
15 | #----------------------------------------------------------------------------- | |
16 | from __future__ import print_function |
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16 | from __future__ import print_function | |
17 |
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17 | |||
18 | # Standard library imports. |
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18 | # Standard library imports. | |
19 | import __builtin__ |
|
19 | import __builtin__ | |
20 | import atexit |
|
20 | import atexit | |
21 | import sys |
|
21 | import sys | |
22 | import time |
|
22 | import time | |
23 | import traceback |
|
23 | import traceback | |
24 |
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24 | |||
25 | # System library imports. |
|
25 | # System library imports. | |
26 | import zmq |
|
26 | import zmq | |
27 |
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27 | |||
28 | # Local imports. |
|
28 | # Local imports. | |
29 | from IPython.config.configurable import Configurable |
|
29 | from IPython.config.configurable import Configurable | |
30 | from IPython.utils import io |
|
30 | from IPython.utils import io | |
31 | from IPython.utils.jsonutil import json_clean |
|
31 | from IPython.utils.jsonutil import json_clean | |
32 | from IPython.lib import pylabtools |
|
32 | from IPython.lib import pylabtools | |
33 | from IPython.utils.traitlets import Instance, Float |
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33 | from IPython.utils.traitlets import Instance, Float | |
34 | from entry_point import (base_launch_kernel, make_argument_parser, make_kernel, |
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34 | from entry_point import (base_launch_kernel, make_argument_parser, make_kernel, | |
35 | start_kernel) |
|
35 | start_kernel) | |
36 | from iostream import OutStream |
|
36 | from iostream import OutStream | |
37 | from session import Session, Message |
|
37 | from session import Session, Message | |
38 | from zmqshell import ZMQInteractiveShell |
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38 | from zmqshell import ZMQInteractiveShell | |
39 |
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39 | |||
40 | #----------------------------------------------------------------------------- |
|
40 | #----------------------------------------------------------------------------- | |
41 | # Main kernel class |
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41 | # Main kernel class | |
42 | #----------------------------------------------------------------------------- |
|
42 | #----------------------------------------------------------------------------- | |
43 |
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43 | |||
44 | class Kernel(Configurable): |
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44 | class Kernel(Configurable): | |
45 |
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45 | |||
46 | #--------------------------------------------------------------------------- |
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46 | #--------------------------------------------------------------------------- | |
47 | # Kernel interface |
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47 | # Kernel interface | |
48 | #--------------------------------------------------------------------------- |
|
48 | #--------------------------------------------------------------------------- | |
49 |
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49 | |||
50 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') |
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50 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC') | |
51 | session = Instance(Session) |
|
51 | session = Instance(Session) | |
52 | reply_socket = Instance('zmq.Socket') |
|
52 | reply_socket = Instance('zmq.Socket') | |
53 | pub_socket = Instance('zmq.Socket') |
|
53 | pub_socket = Instance('zmq.Socket') | |
54 | req_socket = Instance('zmq.Socket') |
|
54 | req_socket = Instance('zmq.Socket') | |
55 |
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55 | |||
56 | # Private interface |
|
56 | # Private interface | |
57 |
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57 | |||
58 | # Time to sleep after flushing the stdout/err buffers in each execute |
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58 | # Time to sleep after flushing the stdout/err buffers in each execute | |
59 | # cycle. While this introduces a hard limit on the minimal latency of the |
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59 | # cycle. While this introduces a hard limit on the minimal latency of the | |
60 | # execute cycle, it helps prevent output synchronization problems for |
|
60 | # execute cycle, it helps prevent output synchronization problems for | |
61 | # clients. |
|
61 | # clients. | |
62 | # Units are in seconds. The minimum zmq latency on local host is probably |
|
62 | # Units are in seconds. The minimum zmq latency on local host is probably | |
63 | # ~150 microseconds, set this to 500us for now. We may need to increase it |
|
63 | # ~150 microseconds, set this to 500us for now. We may need to increase it | |
64 | # a little if it's not enough after more interactive testing. |
|
64 | # a little if it's not enough after more interactive testing. | |
65 | _execute_sleep = Float(0.0005, config=True) |
|
65 | _execute_sleep = Float(0.0005, config=True) | |
66 |
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66 | |||
67 | # Frequency of the kernel's event loop. |
|
67 | # Frequency of the kernel's event loop. | |
68 | # Units are in seconds, kernel subclasses for GUI toolkits may need to |
|
68 | # Units are in seconds, kernel subclasses for GUI toolkits may need to | |
69 | # adapt to milliseconds. |
|
69 | # adapt to milliseconds. | |
70 | _poll_interval = Float(0.05, config=True) |
|
70 | _poll_interval = Float(0.05, config=True) | |
71 |
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71 | |||
72 | # If the shutdown was requested over the network, we leave here the |
|
72 | # If the shutdown was requested over the network, we leave here the | |
73 | # necessary reply message so it can be sent by our registered atexit |
|
73 | # necessary reply message so it can be sent by our registered atexit | |
74 | # handler. This ensures that the reply is only sent to clients truly at |
|
74 | # handler. This ensures that the reply is only sent to clients truly at | |
75 | # the end of our shutdown process (which happens after the underlying |
|
75 | # the end of our shutdown process (which happens after the underlying | |
76 | # IPython shell's own shutdown). |
|
76 | # IPython shell's own shutdown). | |
77 | _shutdown_message = None |
|
77 | _shutdown_message = None | |
78 |
|
78 | |||
79 | # This is a dict of port number that the kernel is listening on. It is set |
|
79 | # This is a dict of port number that the kernel is listening on. It is set | |
80 | # by record_ports and used by connect_request. |
|
80 | # by record_ports and used by connect_request. | |
81 | _recorded_ports = None |
|
81 | _recorded_ports = None | |
82 |
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82 | |||
83 | def __init__(self, **kwargs): |
|
83 | def __init__(self, **kwargs): | |
84 | super(Kernel, self).__init__(**kwargs) |
|
84 | super(Kernel, self).__init__(**kwargs) | |
85 |
|
85 | |||
86 | # Before we even start up the shell, register *first* our exit handlers |
|
86 | # Before we even start up the shell, register *first* our exit handlers | |
87 | # so they come before the shell's |
|
87 | # so they come before the shell's | |
88 | atexit.register(self._at_shutdown) |
|
88 | atexit.register(self._at_shutdown) | |
89 |
|
89 | |||
90 | # Initialize the InteractiveShell subclass |
|
90 | # Initialize the InteractiveShell subclass | |
91 | self.shell = ZMQInteractiveShell.instance() |
|
91 | self.shell = ZMQInteractiveShell.instance() | |
92 | self.shell.displayhook.session = self.session |
|
92 | self.shell.displayhook.session = self.session | |
93 | self.shell.displayhook.pub_socket = self.pub_socket |
|
93 | self.shell.displayhook.pub_socket = self.pub_socket | |
94 |
|
94 | |||
95 | # TMP - hack while developing |
|
95 | # TMP - hack while developing | |
96 | self.shell._reply_content = None |
|
96 | self.shell._reply_content = None | |
97 |
|
97 | |||
98 | # Build dict of handlers for message types |
|
98 | # Build dict of handlers for message types | |
99 | msg_types = [ 'execute_request', 'complete_request', |
|
99 | msg_types = [ 'execute_request', 'complete_request', | |
100 | 'object_info_request', 'history_request', |
|
100 | 'object_info_request', 'history_request', | |
101 | 'connect_request', 'shutdown_request'] |
|
101 | 'connect_request', 'shutdown_request'] | |
102 | self.handlers = {} |
|
102 | self.handlers = {} | |
103 | for msg_type in msg_types: |
|
103 | for msg_type in msg_types: | |
104 | self.handlers[msg_type] = getattr(self, msg_type) |
|
104 | self.handlers[msg_type] = getattr(self, msg_type) | |
105 |
|
105 | |||
106 | def do_one_iteration(self): |
|
106 | def do_one_iteration(self): | |
107 | """Do one iteration of the kernel's evaluation loop. |
|
107 | """Do one iteration of the kernel's evaluation loop. | |
108 | """ |
|
108 | """ | |
109 | try: |
|
109 | try: | |
110 | ident = self.reply_socket.recv(zmq.NOBLOCK) |
|
110 | ident = self.reply_socket.recv(zmq.NOBLOCK) | |
111 | except zmq.ZMQError, e: |
|
111 | except zmq.ZMQError, e: | |
112 | if e.errno == zmq.EAGAIN: |
|
112 | if e.errno == zmq.EAGAIN: | |
113 | return |
|
113 | return | |
114 | else: |
|
114 | else: | |
115 | raise |
|
115 | raise | |
116 | # FIXME: Bug in pyzmq/zmq? |
|
116 | # This assert will raise in versions of zeromq 2.0.7 and lesser. | |
117 | # assert self.reply_socket.rcvmore(), "Missing message part." |
|
117 | # We now require 2.0.8 or above, so we can uncomment for safety. | |
|
118 | assert self.reply_socket.rcvmore(), "Missing message part." | |||
118 | msg = self.reply_socket.recv_json() |
|
119 | msg = self.reply_socket.recv_json() | |
119 |
|
120 | |||
120 | # Print some info about this message and leave a '--->' marker, so it's |
|
121 | # Print some info about this message and leave a '--->' marker, so it's | |
121 | # easier to trace visually the message chain when debugging. Each |
|
122 | # easier to trace visually the message chain when debugging. Each | |
122 | # handler prints its message at the end. |
|
123 | # handler prints its message at the end. | |
123 | # Eventually we'll move these from stdout to a logger. |
|
124 | # Eventually we'll move these from stdout to a logger. | |
124 | io.raw_print('\n*** MESSAGE TYPE:', msg['msg_type'], '***') |
|
125 | io.raw_print('\n*** MESSAGE TYPE:', msg['msg_type'], '***') | |
125 | io.raw_print(' Content: ', msg['content'], |
|
126 | io.raw_print(' Content: ', msg['content'], | |
126 | '\n --->\n ', sep='', end='') |
|
127 | '\n --->\n ', sep='', end='') | |
127 |
|
128 | |||
128 | # Find and call actual handler for message |
|
129 | # Find and call actual handler for message | |
129 | handler = self.handlers.get(msg['msg_type'], None) |
|
130 | handler = self.handlers.get(msg['msg_type'], None) | |
130 | if handler is None: |
|
131 | if handler is None: | |
131 | io.raw_print_err("UNKNOWN MESSAGE TYPE:", msg) |
|
132 | io.raw_print_err("UNKNOWN MESSAGE TYPE:", msg) | |
132 | else: |
|
133 | else: | |
133 | handler(ident, msg) |
|
134 | handler(ident, msg) | |
134 |
|
135 | |||
135 | # Check whether we should exit, in case the incoming message set the |
|
136 | # Check whether we should exit, in case the incoming message set the | |
136 | # exit flag on |
|
137 | # exit flag on | |
137 | if self.shell.exit_now: |
|
138 | if self.shell.exit_now: | |
138 | io.raw_print('\nExiting IPython kernel...') |
|
139 | io.raw_print('\nExiting IPython kernel...') | |
139 | # We do a normal, clean exit, which allows any actions registered |
|
140 | # We do a normal, clean exit, which allows any actions registered | |
140 | # via atexit (such as history saving) to take place. |
|
141 | # via atexit (such as history saving) to take place. | |
141 | sys.exit(0) |
|
142 | sys.exit(0) | |
142 |
|
143 | |||
143 |
|
144 | |||
144 | def start(self): |
|
145 | def start(self): | |
145 | """ Start the kernel main loop. |
|
146 | """ Start the kernel main loop. | |
146 | """ |
|
147 | """ | |
147 | while True: |
|
148 | while True: | |
148 | time.sleep(self._poll_interval) |
|
149 | time.sleep(self._poll_interval) | |
149 | self.do_one_iteration() |
|
150 | self.do_one_iteration() | |
150 |
|
151 | |||
151 | def record_ports(self, xrep_port, pub_port, req_port, hb_port): |
|
152 | def record_ports(self, xrep_port, pub_port, req_port, hb_port): | |
152 | """Record the ports that this kernel is using. |
|
153 | """Record the ports that this kernel is using. | |
153 |
|
154 | |||
154 | The creator of the Kernel instance must call this methods if they |
|
155 | The creator of the Kernel instance must call this methods if they | |
155 | want the :meth:`connect_request` method to return the port numbers. |
|
156 | want the :meth:`connect_request` method to return the port numbers. | |
156 | """ |
|
157 | """ | |
157 | self._recorded_ports = { |
|
158 | self._recorded_ports = { | |
158 | 'xrep_port' : xrep_port, |
|
159 | 'xrep_port' : xrep_port, | |
159 | 'pub_port' : pub_port, |
|
160 | 'pub_port' : pub_port, | |
160 | 'req_port' : req_port, |
|
161 | 'req_port' : req_port, | |
161 | 'hb_port' : hb_port |
|
162 | 'hb_port' : hb_port | |
162 | } |
|
163 | } | |
163 |
|
164 | |||
164 | #--------------------------------------------------------------------------- |
|
165 | #--------------------------------------------------------------------------- | |
165 | # Kernel request handlers |
|
166 | # Kernel request handlers | |
166 | #--------------------------------------------------------------------------- |
|
167 | #--------------------------------------------------------------------------- | |
167 |
|
168 | |||
168 | def _publish_pyin(self, code, parent): |
|
169 | def _publish_pyin(self, code, parent): | |
169 | """Publish the code request on the pyin stream.""" |
|
170 | """Publish the code request on the pyin stream.""" | |
170 |
|
171 | |||
171 | pyin_msg = self.session.msg(u'pyin',{u'code':code}, parent=parent) |
|
172 | pyin_msg = self.session.msg(u'pyin',{u'code':code}, parent=parent) | |
172 | self.pub_socket.send_json(pyin_msg) |
|
173 | self.pub_socket.send_json(pyin_msg) | |
173 |
|
174 | |||
174 | def execute_request(self, ident, parent): |
|
175 | def execute_request(self, ident, parent): | |
175 |
|
176 | |||
176 | status_msg = self.session.msg( |
|
177 | status_msg = self.session.msg( | |
177 | u'status', |
|
178 | u'status', | |
178 | {u'execution_state':u'busy'}, |
|
179 | {u'execution_state':u'busy'}, | |
179 | parent=parent |
|
180 | parent=parent | |
180 | ) |
|
181 | ) | |
181 | self.pub_socket.send_json(status_msg) |
|
182 | self.pub_socket.send_json(status_msg) | |
182 |
|
183 | |||
183 | try: |
|
184 | try: | |
184 | content = parent[u'content'] |
|
185 | content = parent[u'content'] | |
185 | code = content[u'code'] |
|
186 | code = content[u'code'] | |
186 | silent = content[u'silent'] |
|
187 | silent = content[u'silent'] | |
187 | except: |
|
188 | except: | |
188 | io.raw_print_err("Got bad msg: ") |
|
189 | io.raw_print_err("Got bad msg: ") | |
189 | io.raw_print_err(Message(parent)) |
|
190 | io.raw_print_err(Message(parent)) | |
190 | return |
|
191 | return | |
191 |
|
192 | |||
192 | shell = self.shell # we'll need this a lot here |
|
193 | shell = self.shell # we'll need this a lot here | |
193 |
|
194 | |||
194 | # Replace raw_input. Note that is not sufficient to replace |
|
195 | # Replace raw_input. Note that is not sufficient to replace | |
195 | # raw_input in the user namespace. |
|
196 | # raw_input in the user namespace. | |
196 | raw_input = lambda prompt='': self._raw_input(prompt, ident, parent) |
|
197 | raw_input = lambda prompt='': self._raw_input(prompt, ident, parent) | |
197 | __builtin__.raw_input = raw_input |
|
198 | __builtin__.raw_input = raw_input | |
198 |
|
199 | |||
199 | # Set the parent message of the display hook and out streams. |
|
200 | # Set the parent message of the display hook and out streams. | |
200 | shell.displayhook.set_parent(parent) |
|
201 | shell.displayhook.set_parent(parent) | |
201 | sys.stdout.set_parent(parent) |
|
202 | sys.stdout.set_parent(parent) | |
202 | sys.stderr.set_parent(parent) |
|
203 | sys.stderr.set_parent(parent) | |
203 |
|
204 | |||
204 | # Re-broadcast our input for the benefit of listening clients, and |
|
205 | # Re-broadcast our input for the benefit of listening clients, and | |
205 | # start computing output |
|
206 | # start computing output | |
206 | if not silent: |
|
207 | if not silent: | |
207 | self._publish_pyin(code, parent) |
|
208 | self._publish_pyin(code, parent) | |
208 |
|
209 | |||
209 | reply_content = {} |
|
210 | reply_content = {} | |
210 | try: |
|
211 | try: | |
211 | if silent: |
|
212 | if silent: | |
212 | # run_code uses 'exec' mode, so no displayhook will fire, and it |
|
213 | # run_code uses 'exec' mode, so no displayhook will fire, and it | |
213 | # doesn't call logging or history manipulations. Print |
|
214 | # doesn't call logging or history manipulations. Print | |
214 | # statements in that code will obviously still execute. |
|
215 | # statements in that code will obviously still execute. | |
215 | shell.run_code(code) |
|
216 | shell.run_code(code) | |
216 | else: |
|
217 | else: | |
217 | # FIXME: the shell calls the exception handler itself. |
|
218 | # FIXME: the shell calls the exception handler itself. | |
218 | shell._reply_content = None |
|
219 | shell._reply_content = None | |
219 | shell.run_cell(code) |
|
220 | shell.run_cell(code) | |
220 | except: |
|
221 | except: | |
221 | status = u'error' |
|
222 | status = u'error' | |
222 | # FIXME: this code right now isn't being used yet by default, |
|
223 | # FIXME: this code right now isn't being used yet by default, | |
223 | # because the runlines() call above directly fires off exception |
|
224 | # because the runlines() call above directly fires off exception | |
224 | # reporting. This code, therefore, is only active in the scenario |
|
225 | # reporting. This code, therefore, is only active in the scenario | |
225 | # where runlines itself has an unhandled exception. We need to |
|
226 | # where runlines itself has an unhandled exception. We need to | |
226 | # uniformize this, for all exception construction to come from a |
|
227 | # uniformize this, for all exception construction to come from a | |
227 | # single location in the codbase. |
|
228 | # single location in the codbase. | |
228 | etype, evalue, tb = sys.exc_info() |
|
229 | etype, evalue, tb = sys.exc_info() | |
229 | tb_list = traceback.format_exception(etype, evalue, tb) |
|
230 | tb_list = traceback.format_exception(etype, evalue, tb) | |
230 | reply_content.update(shell._showtraceback(etype, evalue, tb_list)) |
|
231 | reply_content.update(shell._showtraceback(etype, evalue, tb_list)) | |
231 | else: |
|
232 | else: | |
232 | status = u'ok' |
|
233 | status = u'ok' | |
233 |
|
234 | |||
234 | reply_content[u'status'] = status |
|
235 | reply_content[u'status'] = status | |
235 |
|
236 | |||
236 | # Return the execution counter so clients can display prompts |
|
237 | # Return the execution counter so clients can display prompts | |
237 | reply_content['execution_count'] = shell.execution_count -1 |
|
238 | reply_content['execution_count'] = shell.execution_count -1 | |
238 |
|
239 | |||
239 | # FIXME - fish exception info out of shell, possibly left there by |
|
240 | # FIXME - fish exception info out of shell, possibly left there by | |
240 | # runlines. We'll need to clean up this logic later. |
|
241 | # runlines. We'll need to clean up this logic later. | |
241 | if shell._reply_content is not None: |
|
242 | if shell._reply_content is not None: | |
242 | reply_content.update(shell._reply_content) |
|
243 | reply_content.update(shell._reply_content) | |
243 |
|
244 | |||
244 | # At this point, we can tell whether the main code execution succeeded |
|
245 | # At this point, we can tell whether the main code execution succeeded | |
245 | # or not. If it did, we proceed to evaluate user_variables/expressions |
|
246 | # or not. If it did, we proceed to evaluate user_variables/expressions | |
246 | if reply_content['status'] == 'ok': |
|
247 | if reply_content['status'] == 'ok': | |
247 | reply_content[u'user_variables'] = \ |
|
248 | reply_content[u'user_variables'] = \ | |
248 | shell.user_variables(content[u'user_variables']) |
|
249 | shell.user_variables(content[u'user_variables']) | |
249 | reply_content[u'user_expressions'] = \ |
|
250 | reply_content[u'user_expressions'] = \ | |
250 | shell.user_expressions(content[u'user_expressions']) |
|
251 | shell.user_expressions(content[u'user_expressions']) | |
251 | else: |
|
252 | else: | |
252 | # If there was an error, don't even try to compute variables or |
|
253 | # If there was an error, don't even try to compute variables or | |
253 | # expressions |
|
254 | # expressions | |
254 | reply_content[u'user_variables'] = {} |
|
255 | reply_content[u'user_variables'] = {} | |
255 | reply_content[u'user_expressions'] = {} |
|
256 | reply_content[u'user_expressions'] = {} | |
256 |
|
257 | |||
257 | # Payloads should be retrieved regardless of outcome, so we can both |
|
258 | # Payloads should be retrieved regardless of outcome, so we can both | |
258 | # recover partial output (that could have been generated early in a |
|
259 | # recover partial output (that could have been generated early in a | |
259 | # block, before an error) and clear the payload system always. |
|
260 | # block, before an error) and clear the payload system always. | |
260 | reply_content[u'payload'] = shell.payload_manager.read_payload() |
|
261 | reply_content[u'payload'] = shell.payload_manager.read_payload() | |
261 | # Be agressive about clearing the payload because we don't want |
|
262 | # Be agressive about clearing the payload because we don't want | |
262 | # it to sit in memory until the next execute_request comes in. |
|
263 | # it to sit in memory until the next execute_request comes in. | |
263 | shell.payload_manager.clear_payload() |
|
264 | shell.payload_manager.clear_payload() | |
264 |
|
265 | |||
265 | # Send the reply. |
|
266 | # Send the reply. | |
266 | reply_msg = self.session.msg(u'execute_reply', reply_content, parent) |
|
267 | reply_msg = self.session.msg(u'execute_reply', reply_content, parent) | |
267 | io.raw_print(reply_msg) |
|
268 | io.raw_print(reply_msg) | |
268 |
|
269 | |||
269 | # Flush output before sending the reply. |
|
270 | # Flush output before sending the reply. | |
270 | sys.stdout.flush() |
|
271 | sys.stdout.flush() | |
271 | sys.stderr.flush() |
|
272 | sys.stderr.flush() | |
272 | # FIXME: on rare occasions, the flush doesn't seem to make it to the |
|
273 | # FIXME: on rare occasions, the flush doesn't seem to make it to the | |
273 | # clients... This seems to mitigate the problem, but we definitely need |
|
274 | # clients... This seems to mitigate the problem, but we definitely need | |
274 | # to better understand what's going on. |
|
275 | # to better understand what's going on. | |
275 | if self._execute_sleep: |
|
276 | if self._execute_sleep: | |
276 | time.sleep(self._execute_sleep) |
|
277 | time.sleep(self._execute_sleep) | |
277 |
|
278 | |||
278 | self.reply_socket.send(ident, zmq.SNDMORE) |
|
279 | self.reply_socket.send(ident, zmq.SNDMORE) | |
279 | self.reply_socket.send_json(reply_msg) |
|
280 | self.reply_socket.send_json(reply_msg) | |
280 | if reply_msg['content']['status'] == u'error': |
|
281 | if reply_msg['content']['status'] == u'error': | |
281 | self._abort_queue() |
|
282 | self._abort_queue() | |
282 |
|
283 | |||
283 | status_msg = self.session.msg( |
|
284 | status_msg = self.session.msg( | |
284 | u'status', |
|
285 | u'status', | |
285 | {u'execution_state':u'idle'}, |
|
286 | {u'execution_state':u'idle'}, | |
286 | parent=parent |
|
287 | parent=parent | |
287 | ) |
|
288 | ) | |
288 | self.pub_socket.send_json(status_msg) |
|
289 | self.pub_socket.send_json(status_msg) | |
289 |
|
290 | |||
290 | def complete_request(self, ident, parent): |
|
291 | def complete_request(self, ident, parent): | |
291 | txt, matches = self._complete(parent) |
|
292 | txt, matches = self._complete(parent) | |
292 | matches = {'matches' : matches, |
|
293 | matches = {'matches' : matches, | |
293 | 'matched_text' : txt, |
|
294 | 'matched_text' : txt, | |
294 | 'status' : 'ok'} |
|
295 | 'status' : 'ok'} | |
295 | completion_msg = self.session.send(self.reply_socket, 'complete_reply', |
|
296 | completion_msg = self.session.send(self.reply_socket, 'complete_reply', | |
296 | matches, parent, ident) |
|
297 | matches, parent, ident) | |
297 | io.raw_print(completion_msg) |
|
298 | io.raw_print(completion_msg) | |
298 |
|
299 | |||
299 | def object_info_request(self, ident, parent): |
|
300 | def object_info_request(self, ident, parent): | |
300 | object_info = self.shell.object_inspect(parent['content']['oname']) |
|
301 | object_info = self.shell.object_inspect(parent['content']['oname']) | |
301 | # Before we send this object over, we scrub it for JSON usage |
|
302 | # Before we send this object over, we scrub it for JSON usage | |
302 | oinfo = json_clean(object_info) |
|
303 | oinfo = json_clean(object_info) | |
303 | msg = self.session.send(self.reply_socket, 'object_info_reply', |
|
304 | msg = self.session.send(self.reply_socket, 'object_info_reply', | |
304 | oinfo, parent, ident) |
|
305 | oinfo, parent, ident) | |
305 | io.raw_print(msg) |
|
306 | io.raw_print(msg) | |
306 |
|
307 | |||
307 | def history_request(self, ident, parent): |
|
308 | def history_request(self, ident, parent): | |
308 | output = parent['content']['output'] |
|
309 | output = parent['content']['output'] | |
309 | index = parent['content']['index'] |
|
310 | index = parent['content']['index'] | |
310 | raw = parent['content']['raw'] |
|
311 | raw = parent['content']['raw'] | |
311 | hist = self.shell.get_history(index=index, raw=raw, output=output) |
|
312 | hist = self.shell.get_history(index=index, raw=raw, output=output) | |
312 | content = {'history' : hist} |
|
313 | content = {'history' : hist} | |
313 | msg = self.session.send(self.reply_socket, 'history_reply', |
|
314 | msg = self.session.send(self.reply_socket, 'history_reply', | |
314 | content, parent, ident) |
|
315 | content, parent, ident) | |
315 | io.raw_print(msg) |
|
316 | io.raw_print(msg) | |
316 |
|
317 | |||
317 | def connect_request(self, ident, parent): |
|
318 | def connect_request(self, ident, parent): | |
318 | if self._recorded_ports is not None: |
|
319 | if self._recorded_ports is not None: | |
319 | content = self._recorded_ports.copy() |
|
320 | content = self._recorded_ports.copy() | |
320 | else: |
|
321 | else: | |
321 | content = {} |
|
322 | content = {} | |
322 | msg = self.session.send(self.reply_socket, 'connect_reply', |
|
323 | msg = self.session.send(self.reply_socket, 'connect_reply', | |
323 | content, parent, ident) |
|
324 | content, parent, ident) | |
324 | io.raw_print(msg) |
|
325 | io.raw_print(msg) | |
325 |
|
326 | |||
326 | def shutdown_request(self, ident, parent): |
|
327 | def shutdown_request(self, ident, parent): | |
327 | self.shell.exit_now = True |
|
328 | self.shell.exit_now = True | |
328 | self._shutdown_message = self.session.msg(u'shutdown_reply', parent['content'], parent) |
|
329 | self._shutdown_message = self.session.msg(u'shutdown_reply', parent['content'], parent) | |
329 | sys.exit(0) |
|
330 | sys.exit(0) | |
330 |
|
331 | |||
331 | #--------------------------------------------------------------------------- |
|
332 | #--------------------------------------------------------------------------- | |
332 | # Protected interface |
|
333 | # Protected interface | |
333 | #--------------------------------------------------------------------------- |
|
334 | #--------------------------------------------------------------------------- | |
334 |
|
335 | |||
335 | def _abort_queue(self): |
|
336 | def _abort_queue(self): | |
336 | while True: |
|
337 | while True: | |
337 | try: |
|
338 | try: | |
338 | ident = self.reply_socket.recv(zmq.NOBLOCK) |
|
339 | ident = self.reply_socket.recv(zmq.NOBLOCK) | |
339 | except zmq.ZMQError, e: |
|
340 | except zmq.ZMQError, e: | |
340 | if e.errno == zmq.EAGAIN: |
|
341 | if e.errno == zmq.EAGAIN: | |
341 | break |
|
342 | break | |
342 | else: |
|
343 | else: | |
343 | assert self.reply_socket.rcvmore(), \ |
|
344 | assert self.reply_socket.rcvmore(), \ | |
344 | "Unexpected missing message part." |
|
345 | "Unexpected missing message part." | |
345 | msg = self.reply_socket.recv_json() |
|
346 | msg = self.reply_socket.recv_json() | |
346 | io.raw_print("Aborting:\n", Message(msg)) |
|
347 | io.raw_print("Aborting:\n", Message(msg)) | |
347 | msg_type = msg['msg_type'] |
|
348 | msg_type = msg['msg_type'] | |
348 | reply_type = msg_type.split('_')[0] + '_reply' |
|
349 | reply_type = msg_type.split('_')[0] + '_reply' | |
349 | reply_msg = self.session.msg(reply_type, {'status' : 'aborted'}, msg) |
|
350 | reply_msg = self.session.msg(reply_type, {'status' : 'aborted'}, msg) | |
350 | io.raw_print(reply_msg) |
|
351 | io.raw_print(reply_msg) | |
351 | self.reply_socket.send(ident,zmq.SNDMORE) |
|
352 | self.reply_socket.send(ident,zmq.SNDMORE) | |
352 | self.reply_socket.send_json(reply_msg) |
|
353 | self.reply_socket.send_json(reply_msg) | |
353 | # We need to wait a bit for requests to come in. This can probably |
|
354 | # We need to wait a bit for requests to come in. This can probably | |
354 | # be set shorter for true asynchronous clients. |
|
355 | # be set shorter for true asynchronous clients. | |
355 | time.sleep(0.1) |
|
356 | time.sleep(0.1) | |
356 |
|
357 | |||
357 | def _raw_input(self, prompt, ident, parent): |
|
358 | def _raw_input(self, prompt, ident, parent): | |
358 | # Flush output before making the request. |
|
359 | # Flush output before making the request. | |
359 | sys.stderr.flush() |
|
360 | sys.stderr.flush() | |
360 | sys.stdout.flush() |
|
361 | sys.stdout.flush() | |
361 |
|
362 | |||
362 | # Send the input request. |
|
363 | # Send the input request. | |
363 | content = dict(prompt=prompt) |
|
364 | content = dict(prompt=prompt) | |
364 | msg = self.session.msg(u'input_request', content, parent) |
|
365 | msg = self.session.msg(u'input_request', content, parent) | |
365 | self.req_socket.send_json(msg) |
|
366 | self.req_socket.send_json(msg) | |
366 |
|
367 | |||
367 | # Await a response. |
|
368 | # Await a response. | |
368 | reply = self.req_socket.recv_json() |
|
369 | reply = self.req_socket.recv_json() | |
369 | try: |
|
370 | try: | |
370 | value = reply['content']['value'] |
|
371 | value = reply['content']['value'] | |
371 | except: |
|
372 | except: | |
372 | io.raw_print_err("Got bad raw_input reply: ") |
|
373 | io.raw_print_err("Got bad raw_input reply: ") | |
373 | io.raw_print_err(Message(parent)) |
|
374 | io.raw_print_err(Message(parent)) | |
374 | value = '' |
|
375 | value = '' | |
375 | return value |
|
376 | return value | |
376 |
|
377 | |||
377 | def _complete(self, msg): |
|
378 | def _complete(self, msg): | |
378 | c = msg['content'] |
|
379 | c = msg['content'] | |
379 | try: |
|
380 | try: | |
380 | cpos = int(c['cursor_pos']) |
|
381 | cpos = int(c['cursor_pos']) | |
381 | except: |
|
382 | except: | |
382 | # If we don't get something that we can convert to an integer, at |
|
383 | # If we don't get something that we can convert to an integer, at | |
383 | # least attempt the completion guessing the cursor is at the end of |
|
384 | # least attempt the completion guessing the cursor is at the end of | |
384 | # the text, if there's any, and otherwise of the line |
|
385 | # the text, if there's any, and otherwise of the line | |
385 | cpos = len(c['text']) |
|
386 | cpos = len(c['text']) | |
386 | if cpos==0: |
|
387 | if cpos==0: | |
387 | cpos = len(c['line']) |
|
388 | cpos = len(c['line']) | |
388 | return self.shell.complete(c['text'], c['line'], cpos) |
|
389 | return self.shell.complete(c['text'], c['line'], cpos) | |
389 |
|
390 | |||
390 | def _object_info(self, context): |
|
391 | def _object_info(self, context): | |
391 | symbol, leftover = self._symbol_from_context(context) |
|
392 | symbol, leftover = self._symbol_from_context(context) | |
392 | if symbol is not None and not leftover: |
|
393 | if symbol is not None and not leftover: | |
393 | doc = getattr(symbol, '__doc__', '') |
|
394 | doc = getattr(symbol, '__doc__', '') | |
394 | else: |
|
395 | else: | |
395 | doc = '' |
|
396 | doc = '' | |
396 | object_info = dict(docstring = doc) |
|
397 | object_info = dict(docstring = doc) | |
397 | return object_info |
|
398 | return object_info | |
398 |
|
399 | |||
399 | def _symbol_from_context(self, context): |
|
400 | def _symbol_from_context(self, context): | |
400 | if not context: |
|
401 | if not context: | |
401 | return None, context |
|
402 | return None, context | |
402 |
|
403 | |||
403 | base_symbol_string = context[0] |
|
404 | base_symbol_string = context[0] | |
404 | symbol = self.shell.user_ns.get(base_symbol_string, None) |
|
405 | symbol = self.shell.user_ns.get(base_symbol_string, None) | |
405 | if symbol is None: |
|
406 | if symbol is None: | |
406 | symbol = __builtin__.__dict__.get(base_symbol_string, None) |
|
407 | symbol = __builtin__.__dict__.get(base_symbol_string, None) | |
407 | if symbol is None: |
|
408 | if symbol is None: | |
408 | return None, context |
|
409 | return None, context | |
409 |
|
410 | |||
410 | context = context[1:] |
|
411 | context = context[1:] | |
411 | for i, name in enumerate(context): |
|
412 | for i, name in enumerate(context): | |
412 | new_symbol = getattr(symbol, name, None) |
|
413 | new_symbol = getattr(symbol, name, None) | |
413 | if new_symbol is None: |
|
414 | if new_symbol is None: | |
414 | return symbol, context[i:] |
|
415 | return symbol, context[i:] | |
415 | else: |
|
416 | else: | |
416 | symbol = new_symbol |
|
417 | symbol = new_symbol | |
417 |
|
418 | |||
418 | return symbol, [] |
|
419 | return symbol, [] | |
419 |
|
420 | |||
420 | def _at_shutdown(self): |
|
421 | def _at_shutdown(self): | |
421 | """Actions taken at shutdown by the kernel, called by python's atexit. |
|
422 | """Actions taken at shutdown by the kernel, called by python's atexit. | |
422 | """ |
|
423 | """ | |
423 | # io.rprint("Kernel at_shutdown") # dbg |
|
424 | # io.rprint("Kernel at_shutdown") # dbg | |
424 | if self._shutdown_message is not None: |
|
425 | if self._shutdown_message is not None: | |
425 | self.reply_socket.send_json(self._shutdown_message) |
|
426 | self.reply_socket.send_json(self._shutdown_message) | |
426 | self.pub_socket.send_json(self._shutdown_message) |
|
427 | self.pub_socket.send_json(self._shutdown_message) | |
427 | io.raw_print(self._shutdown_message) |
|
428 | io.raw_print(self._shutdown_message) | |
428 | # A very short sleep to give zmq time to flush its message buffers |
|
429 | # A very short sleep to give zmq time to flush its message buffers | |
429 | # before Python truly shuts down. |
|
430 | # before Python truly shuts down. | |
430 | time.sleep(0.01) |
|
431 | time.sleep(0.01) | |
431 |
|
432 | |||
432 |
|
433 | |||
433 | class QtKernel(Kernel): |
|
434 | class QtKernel(Kernel): | |
434 | """A Kernel subclass with Qt support.""" |
|
435 | """A Kernel subclass with Qt support.""" | |
435 |
|
436 | |||
436 | def start(self): |
|
437 | def start(self): | |
437 | """Start a kernel with QtPy4 event loop integration.""" |
|
438 | """Start a kernel with QtPy4 event loop integration.""" | |
438 |
|
439 | |||
439 | from PyQt4 import QtCore |
|
440 | from PyQt4 import QtCore | |
440 | from IPython.lib.guisupport import get_app_qt4, start_event_loop_qt4 |
|
441 | from IPython.lib.guisupport import get_app_qt4, start_event_loop_qt4 | |
441 |
|
442 | |||
442 | self.app = get_app_qt4([" "]) |
|
443 | self.app = get_app_qt4([" "]) | |
443 | self.app.setQuitOnLastWindowClosed(False) |
|
444 | self.app.setQuitOnLastWindowClosed(False) | |
444 | self.timer = QtCore.QTimer() |
|
445 | self.timer = QtCore.QTimer() | |
445 | self.timer.timeout.connect(self.do_one_iteration) |
|
446 | self.timer.timeout.connect(self.do_one_iteration) | |
446 | # Units for the timer are in milliseconds |
|
447 | # Units for the timer are in milliseconds | |
447 | self.timer.start(1000*self._poll_interval) |
|
448 | self.timer.start(1000*self._poll_interval) | |
448 | start_event_loop_qt4(self.app) |
|
449 | start_event_loop_qt4(self.app) | |
449 |
|
450 | |||
450 |
|
451 | |||
451 | class WxKernel(Kernel): |
|
452 | class WxKernel(Kernel): | |
452 | """A Kernel subclass with Wx support.""" |
|
453 | """A Kernel subclass with Wx support.""" | |
453 |
|
454 | |||
454 | def start(self): |
|
455 | def start(self): | |
455 | """Start a kernel with wx event loop support.""" |
|
456 | """Start a kernel with wx event loop support.""" | |
456 |
|
457 | |||
457 | import wx |
|
458 | import wx | |
458 | from IPython.lib.guisupport import start_event_loop_wx |
|
459 | from IPython.lib.guisupport import start_event_loop_wx | |
459 |
|
460 | |||
460 | doi = self.do_one_iteration |
|
461 | doi = self.do_one_iteration | |
461 | # Wx uses milliseconds |
|
462 | # Wx uses milliseconds | |
462 | poll_interval = int(1000*self._poll_interval) |
|
463 | poll_interval = int(1000*self._poll_interval) | |
463 |
|
464 | |||
464 | # We have to put the wx.Timer in a wx.Frame for it to fire properly. |
|
465 | # We have to put the wx.Timer in a wx.Frame for it to fire properly. | |
465 | # We make the Frame hidden when we create it in the main app below. |
|
466 | # We make the Frame hidden when we create it in the main app below. | |
466 | class TimerFrame(wx.Frame): |
|
467 | class TimerFrame(wx.Frame): | |
467 | def __init__(self, func): |
|
468 | def __init__(self, func): | |
468 | wx.Frame.__init__(self, None, -1) |
|
469 | wx.Frame.__init__(self, None, -1) | |
469 | self.timer = wx.Timer(self) |
|
470 | self.timer = wx.Timer(self) | |
470 | # Units for the timer are in milliseconds |
|
471 | # Units for the timer are in milliseconds | |
471 | self.timer.Start(poll_interval) |
|
472 | self.timer.Start(poll_interval) | |
472 | self.Bind(wx.EVT_TIMER, self.on_timer) |
|
473 | self.Bind(wx.EVT_TIMER, self.on_timer) | |
473 | self.func = func |
|
474 | self.func = func | |
474 |
|
475 | |||
475 | def on_timer(self, event): |
|
476 | def on_timer(self, event): | |
476 | self.func() |
|
477 | self.func() | |
477 |
|
478 | |||
478 | # We need a custom wx.App to create our Frame subclass that has the |
|
479 | # We need a custom wx.App to create our Frame subclass that has the | |
479 | # wx.Timer to drive the ZMQ event loop. |
|
480 | # wx.Timer to drive the ZMQ event loop. | |
480 | class IPWxApp(wx.App): |
|
481 | class IPWxApp(wx.App): | |
481 | def OnInit(self): |
|
482 | def OnInit(self): | |
482 | self.frame = TimerFrame(doi) |
|
483 | self.frame = TimerFrame(doi) | |
483 | self.frame.Show(False) |
|
484 | self.frame.Show(False) | |
484 | return True |
|
485 | return True | |
485 |
|
486 | |||
486 | # The redirect=False here makes sure that wx doesn't replace |
|
487 | # The redirect=False here makes sure that wx doesn't replace | |
487 | # sys.stdout/stderr with its own classes. |
|
488 | # sys.stdout/stderr with its own classes. | |
488 | self.app = IPWxApp(redirect=False) |
|
489 | self.app = IPWxApp(redirect=False) | |
489 | start_event_loop_wx(self.app) |
|
490 | start_event_loop_wx(self.app) | |
490 |
|
491 | |||
491 |
|
492 | |||
492 | class TkKernel(Kernel): |
|
493 | class TkKernel(Kernel): | |
493 | """A Kernel subclass with Tk support.""" |
|
494 | """A Kernel subclass with Tk support.""" | |
494 |
|
495 | |||
495 | def start(self): |
|
496 | def start(self): | |
496 | """Start a Tk enabled event loop.""" |
|
497 | """Start a Tk enabled event loop.""" | |
497 |
|
498 | |||
498 | import Tkinter |
|
499 | import Tkinter | |
499 | doi = self.do_one_iteration |
|
500 | doi = self.do_one_iteration | |
500 | # Tk uses milliseconds |
|
501 | # Tk uses milliseconds | |
501 | poll_interval = int(1000*self._poll_interval) |
|
502 | poll_interval = int(1000*self._poll_interval) | |
502 | # For Tkinter, we create a Tk object and call its withdraw method. |
|
503 | # For Tkinter, we create a Tk object and call its withdraw method. | |
503 | class Timer(object): |
|
504 | class Timer(object): | |
504 | def __init__(self, func): |
|
505 | def __init__(self, func): | |
505 | self.app = Tkinter.Tk() |
|
506 | self.app = Tkinter.Tk() | |
506 | self.app.withdraw() |
|
507 | self.app.withdraw() | |
507 | self.func = func |
|
508 | self.func = func | |
508 |
|
509 | |||
509 | def on_timer(self): |
|
510 | def on_timer(self): | |
510 | self.func() |
|
511 | self.func() | |
511 | self.app.after(poll_interval, self.on_timer) |
|
512 | self.app.after(poll_interval, self.on_timer) | |
512 |
|
513 | |||
513 | def start(self): |
|
514 | def start(self): | |
514 | self.on_timer() # Call it once to get things going. |
|
515 | self.on_timer() # Call it once to get things going. | |
515 | self.app.mainloop() |
|
516 | self.app.mainloop() | |
516 |
|
517 | |||
517 | self.timer = Timer(doi) |
|
518 | self.timer = Timer(doi) | |
518 | self.timer.start() |
|
519 | self.timer.start() | |
519 |
|
520 | |||
520 |
|
521 | |||
521 | class GTKKernel(Kernel): |
|
522 | class GTKKernel(Kernel): | |
522 | """A Kernel subclass with GTK support.""" |
|
523 | """A Kernel subclass with GTK support.""" | |
523 |
|
524 | |||
524 | def start(self): |
|
525 | def start(self): | |
525 | """Start the kernel, coordinating with the GTK event loop""" |
|
526 | """Start the kernel, coordinating with the GTK event loop""" | |
526 | from .gui.gtkembed import GTKEmbed |
|
527 | from .gui.gtkembed import GTKEmbed | |
527 |
|
528 | |||
528 | gtk_kernel = GTKEmbed(self) |
|
529 | gtk_kernel = GTKEmbed(self) | |
529 | gtk_kernel.start() |
|
530 | gtk_kernel.start() | |
530 |
|
531 | |||
531 |
|
532 | |||
532 | #----------------------------------------------------------------------------- |
|
533 | #----------------------------------------------------------------------------- | |
533 | # Kernel main and launch functions |
|
534 | # Kernel main and launch functions | |
534 | #----------------------------------------------------------------------------- |
|
535 | #----------------------------------------------------------------------------- | |
535 |
|
536 | |||
536 | def launch_kernel(xrep_port=0, pub_port=0, req_port=0, hb_port=0, |
|
537 | def launch_kernel(xrep_port=0, pub_port=0, req_port=0, hb_port=0, | |
537 | independent=False, pylab=False): |
|
538 | independent=False, pylab=False): | |
538 | """Launches a localhost kernel, binding to the specified ports. |
|
539 | """Launches a localhost kernel, binding to the specified ports. | |
539 |
|
540 | |||
540 | Parameters |
|
541 | Parameters | |
541 | ---------- |
|
542 | ---------- | |
542 | xrep_port : int, optional |
|
543 | xrep_port : int, optional | |
543 | The port to use for XREP channel. |
|
544 | The port to use for XREP channel. | |
544 |
|
545 | |||
545 | pub_port : int, optional |
|
546 | pub_port : int, optional | |
546 | The port to use for the SUB channel. |
|
547 | The port to use for the SUB channel. | |
547 |
|
548 | |||
548 | req_port : int, optional |
|
549 | req_port : int, optional | |
549 | The port to use for the REQ (raw input) channel. |
|
550 | The port to use for the REQ (raw input) channel. | |
550 |
|
551 | |||
551 | hb_port : int, optional |
|
552 | hb_port : int, optional | |
552 | The port to use for the hearbeat REP channel. |
|
553 | The port to use for the hearbeat REP channel. | |
553 |
|
554 | |||
554 | independent : bool, optional (default False) |
|
555 | independent : bool, optional (default False) | |
555 | If set, the kernel process is guaranteed to survive if this process |
|
556 | If set, the kernel process is guaranteed to survive if this process | |
556 | dies. If not set, an effort is made to ensure that the kernel is killed |
|
557 | dies. If not set, an effort is made to ensure that the kernel is killed | |
557 | when this process dies. Note that in this case it is still good practice |
|
558 | when this process dies. Note that in this case it is still good practice | |
558 | to kill kernels manually before exiting. |
|
559 | to kill kernels manually before exiting. | |
559 |
|
560 | |||
560 | pylab : bool or string, optional (default False) |
|
561 | pylab : bool or string, optional (default False) | |
561 | If not False, the kernel will be launched with pylab enabled. If a |
|
562 | If not False, the kernel will be launched with pylab enabled. If a | |
562 | string is passed, matplotlib will use the specified backend. Otherwise, |
|
563 | string is passed, matplotlib will use the specified backend. Otherwise, | |
563 | matplotlib's default backend will be used. |
|
564 | matplotlib's default backend will be used. | |
564 |
|
565 | |||
565 | Returns |
|
566 | Returns | |
566 | ------- |
|
567 | ------- | |
567 | A tuple of form: |
|
568 | A tuple of form: | |
568 | (kernel_process, xrep_port, pub_port, req_port) |
|
569 | (kernel_process, xrep_port, pub_port, req_port) | |
569 | where kernel_process is a Popen object and the ports are integers. |
|
570 | where kernel_process is a Popen object and the ports are integers. | |
570 | """ |
|
571 | """ | |
571 | extra_arguments = [] |
|
572 | extra_arguments = [] | |
572 | if pylab: |
|
573 | if pylab: | |
573 | extra_arguments.append('--pylab') |
|
574 | extra_arguments.append('--pylab') | |
574 | if isinstance(pylab, basestring): |
|
575 | if isinstance(pylab, basestring): | |
575 | extra_arguments.append(pylab) |
|
576 | extra_arguments.append(pylab) | |
576 | return base_launch_kernel('from IPython.zmq.ipkernel import main; main()', |
|
577 | return base_launch_kernel('from IPython.zmq.ipkernel import main; main()', | |
577 | xrep_port, pub_port, req_port, hb_port, |
|
578 | xrep_port, pub_port, req_port, hb_port, | |
578 | independent, extra_arguments) |
|
579 | independent, extra_arguments) | |
579 |
|
580 | |||
580 |
|
581 | |||
581 | def main(): |
|
582 | def main(): | |
582 | """ The IPython kernel main entry point. |
|
583 | """ The IPython kernel main entry point. | |
583 | """ |
|
584 | """ | |
584 | parser = make_argument_parser() |
|
585 | parser = make_argument_parser() | |
585 | parser.add_argument('--pylab', type=str, metavar='GUI', nargs='?', |
|
586 | parser.add_argument('--pylab', type=str, metavar='GUI', nargs='?', | |
586 | const='auto', help = \ |
|
587 | const='auto', help = \ | |
587 | "Pre-load matplotlib and numpy for interactive use. If GUI is not \ |
|
588 | "Pre-load matplotlib and numpy for interactive use. If GUI is not \ | |
588 | given, the GUI backend is matplotlib's, otherwise use one of: \ |
|
589 | given, the GUI backend is matplotlib's, otherwise use one of: \ | |
589 | ['tk', 'gtk', 'qt', 'wx', 'inline'].") |
|
590 | ['tk', 'gtk', 'qt', 'wx', 'inline'].") | |
590 | namespace = parser.parse_args() |
|
591 | namespace = parser.parse_args() | |
591 |
|
592 | |||
592 | kernel_class = Kernel |
|
593 | kernel_class = Kernel | |
593 |
|
594 | |||
594 | kernel_classes = { |
|
595 | kernel_classes = { | |
595 | 'qt' : QtKernel, |
|
596 | 'qt' : QtKernel, | |
596 | 'qt4': QtKernel, |
|
597 | 'qt4': QtKernel, | |
597 | 'inline': Kernel, |
|
598 | 'inline': Kernel, | |
598 | 'wx' : WxKernel, |
|
599 | 'wx' : WxKernel, | |
599 | 'tk' : TkKernel, |
|
600 | 'tk' : TkKernel, | |
600 | 'gtk': GTKKernel, |
|
601 | 'gtk': GTKKernel, | |
601 | } |
|
602 | } | |
602 | if namespace.pylab: |
|
603 | if namespace.pylab: | |
603 | if namespace.pylab == 'auto': |
|
604 | if namespace.pylab == 'auto': | |
604 | gui, backend = pylabtools.find_gui_and_backend() |
|
605 | gui, backend = pylabtools.find_gui_and_backend() | |
605 | else: |
|
606 | else: | |
606 | gui, backend = pylabtools.find_gui_and_backend(namespace.pylab) |
|
607 | gui, backend = pylabtools.find_gui_and_backend(namespace.pylab) | |
607 | kernel_class = kernel_classes.get(gui) |
|
608 | kernel_class = kernel_classes.get(gui) | |
608 | if kernel_class is None: |
|
609 | if kernel_class is None: | |
609 | raise ValueError('GUI is not supported: %r' % gui) |
|
610 | raise ValueError('GUI is not supported: %r' % gui) | |
610 | pylabtools.activate_matplotlib(backend) |
|
611 | pylabtools.activate_matplotlib(backend) | |
611 |
|
612 | |||
612 | kernel = make_kernel(namespace, kernel_class, OutStream) |
|
613 | kernel = make_kernel(namespace, kernel_class, OutStream) | |
613 |
|
614 | |||
614 | if namespace.pylab: |
|
615 | if namespace.pylab: | |
615 | pylabtools.import_pylab(kernel.shell.user_ns, backend, |
|
616 | pylabtools.import_pylab(kernel.shell.user_ns, backend, | |
616 | shell=kernel.shell) |
|
617 | shell=kernel.shell) | |
617 |
|
618 | |||
618 | start_kernel(namespace, kernel) |
|
619 | start_kernel(namespace, kernel) | |
619 |
|
620 | |||
620 |
|
621 | |||
621 | if __name__ == '__main__': |
|
622 | if __name__ == '__main__': | |
622 | main() |
|
623 | main() |
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