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1 | """ A minimal application using the Qt console-style IPython frontend. |
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1 | """ A minimal application using the Qt console-style IPython frontend. | |
2 |
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2 | |||
3 | This is not a complete console app, as subprocess will not be able to receive |
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3 | This is not a complete console app, as subprocess will not be able to receive | |
4 | input, there is no real readline support, among other limitations. |
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4 | input, there is no real readline support, among other limitations. | |
5 |
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5 | |||
6 | Authors: |
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6 | Authors: | |
7 |
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7 | |||
8 | * Evan Patterson |
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8 | * Evan Patterson | |
9 | * Min RK |
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9 | * Min RK | |
10 | * Erik Tollerud |
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10 | * Erik Tollerud | |
11 | * Fernando Perez |
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11 | * Fernando Perez | |
12 |
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12 | |||
13 | """ |
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13 | """ | |
14 |
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14 | |||
15 | #----------------------------------------------------------------------------- |
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15 | #----------------------------------------------------------------------------- | |
16 | # Imports |
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16 | # Imports | |
17 | #----------------------------------------------------------------------------- |
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17 | #----------------------------------------------------------------------------- | |
18 |
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18 | |||
19 | # stdlib imports |
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19 | # stdlib imports | |
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20 | import json | |||
20 | import os |
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21 | import os | |
21 | import signal |
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22 | import signal | |
22 | import sys |
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23 | import sys | |
23 |
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24 | |||
24 | # System library imports |
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25 | # System library imports | |
25 | from IPython.external.qt import QtGui |
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26 | from IPython.external.qt import QtGui | |
26 | from pygments.styles import get_all_styles |
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27 | from pygments.styles import get_all_styles | |
27 | from zmq.utils import jsonapi as json |
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28 |
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28 | |||
29 | # Local imports |
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29 | # Local imports | |
30 | from IPython.config.application import boolean_flag |
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30 | from IPython.config.application import boolean_flag | |
31 | from IPython.core.application import BaseIPythonApplication |
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31 | from IPython.core.application import BaseIPythonApplication | |
32 | from IPython.core.profiledir import ProfileDir |
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32 | from IPython.core.profiledir import ProfileDir | |
33 | from IPython.lib.kernel import tunnel_to_kernel, find_connection_file |
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33 | from IPython.lib.kernel import tunnel_to_kernel, find_connection_file | |
34 | from IPython.frontend.qt.console.frontend_widget import FrontendWidget |
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34 | from IPython.frontend.qt.console.frontend_widget import FrontendWidget | |
35 | from IPython.frontend.qt.console.ipython_widget import IPythonWidget |
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35 | from IPython.frontend.qt.console.ipython_widget import IPythonWidget | |
36 | from IPython.frontend.qt.console.rich_ipython_widget import RichIPythonWidget |
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36 | from IPython.frontend.qt.console.rich_ipython_widget import RichIPythonWidget | |
37 | from IPython.frontend.qt.console import styles |
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37 | from IPython.frontend.qt.console import styles | |
38 | from IPython.frontend.qt.kernelmanager import QtKernelManager |
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38 | from IPython.frontend.qt.kernelmanager import QtKernelManager | |
39 | from IPython.utils.path import filefind |
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39 | from IPython.utils.path import filefind | |
40 | from IPython.utils.py3compat import str_to_bytes |
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40 | from IPython.utils.py3compat import str_to_bytes | |
41 | from IPython.utils.traitlets import ( |
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41 | from IPython.utils.traitlets import ( | |
42 | Dict, List, Unicode, Int, CaselessStrEnum, CBool, Any |
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42 | Dict, List, Unicode, Int, CaselessStrEnum, CBool, Any | |
43 | ) |
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43 | ) | |
44 | from IPython.zmq.ipkernel import ( |
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44 | from IPython.zmq.ipkernel import ( | |
45 | flags as ipkernel_flags, |
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45 | flags as ipkernel_flags, | |
46 | aliases as ipkernel_aliases, |
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46 | aliases as ipkernel_aliases, | |
47 | IPKernelApp |
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47 | IPKernelApp | |
48 | ) |
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48 | ) | |
49 | from IPython.zmq.session import Session, default_secure |
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49 | from IPython.zmq.session import Session, default_secure | |
50 | from IPython.zmq.zmqshell import ZMQInteractiveShell |
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50 | from IPython.zmq.zmqshell import ZMQInteractiveShell | |
51 |
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51 | |||
52 |
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52 | |||
53 | #----------------------------------------------------------------------------- |
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53 | #----------------------------------------------------------------------------- | |
54 | # Network Constants |
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54 | # Network Constants | |
55 | #----------------------------------------------------------------------------- |
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55 | #----------------------------------------------------------------------------- | |
56 |
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56 | |||
57 | from IPython.utils.localinterfaces import LOCALHOST, LOCAL_IPS |
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57 | from IPython.utils.localinterfaces import LOCALHOST, LOCAL_IPS | |
58 |
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58 | |||
59 | #----------------------------------------------------------------------------- |
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59 | #----------------------------------------------------------------------------- | |
60 | # Globals |
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60 | # Globals | |
61 | #----------------------------------------------------------------------------- |
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61 | #----------------------------------------------------------------------------- | |
62 |
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62 | |||
63 | _examples = """ |
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63 | _examples = """ | |
64 | ipython qtconsole # start the qtconsole |
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64 | ipython qtconsole # start the qtconsole | |
65 | ipython qtconsole --pylab=inline # start with pylab in inline plotting mode |
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65 | ipython qtconsole --pylab=inline # start with pylab in inline plotting mode | |
66 | """ |
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66 | """ | |
67 |
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67 | |||
68 | #----------------------------------------------------------------------------- |
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68 | #----------------------------------------------------------------------------- | |
69 | # Classes |
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69 | # Classes | |
70 | #----------------------------------------------------------------------------- |
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70 | #----------------------------------------------------------------------------- | |
71 |
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71 | |||
72 | class MainWindow(QtGui.QMainWindow): |
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72 | class MainWindow(QtGui.QMainWindow): | |
73 |
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73 | |||
74 | #--------------------------------------------------------------------------- |
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74 | #--------------------------------------------------------------------------- | |
75 | # 'object' interface |
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75 | # 'object' interface | |
76 | #--------------------------------------------------------------------------- |
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76 | #--------------------------------------------------------------------------- | |
77 |
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77 | |||
78 | def __init__(self, app, frontend, existing=False, may_close=True, |
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78 | def __init__(self, app, frontend, existing=False, may_close=True, | |
79 | confirm_exit=True): |
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79 | confirm_exit=True): | |
80 | """ Create a MainWindow for the specified FrontendWidget. |
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80 | """ Create a MainWindow for the specified FrontendWidget. | |
81 |
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81 | |||
82 | The app is passed as an argument to allow for different |
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82 | The app is passed as an argument to allow for different | |
83 | closing behavior depending on whether we are the Kernel's parent. |
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83 | closing behavior depending on whether we are the Kernel's parent. | |
84 |
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84 | |||
85 | If existing is True, then this Console does not own the Kernel. |
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85 | If existing is True, then this Console does not own the Kernel. | |
86 |
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86 | |||
87 | If may_close is True, then this Console is permitted to close the kernel |
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87 | If may_close is True, then this Console is permitted to close the kernel | |
88 | """ |
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88 | """ | |
89 | super(MainWindow, self).__init__() |
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89 | super(MainWindow, self).__init__() | |
90 | self._app = app |
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90 | self._app = app | |
91 | self._frontend = frontend |
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91 | self._frontend = frontend | |
92 | self._existing = existing |
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92 | self._existing = existing | |
93 | if existing: |
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93 | if existing: | |
94 | self._may_close = may_close |
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94 | self._may_close = may_close | |
95 | else: |
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95 | else: | |
96 | self._may_close = True |
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96 | self._may_close = True | |
97 | self._frontend.exit_requested.connect(self.close) |
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97 | self._frontend.exit_requested.connect(self.close) | |
98 | self._confirm_exit = confirm_exit |
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98 | self._confirm_exit = confirm_exit | |
99 | self.setCentralWidget(frontend) |
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99 | self.setCentralWidget(frontend) | |
100 |
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100 | |||
101 | #--------------------------------------------------------------------------- |
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101 | #--------------------------------------------------------------------------- | |
102 | # QWidget interface |
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102 | # QWidget interface | |
103 | #--------------------------------------------------------------------------- |
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103 | #--------------------------------------------------------------------------- | |
104 |
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104 | |||
105 | def closeEvent(self, event): |
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105 | def closeEvent(self, event): | |
106 | """ Close the window and the kernel (if necessary). |
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106 | """ Close the window and the kernel (if necessary). | |
107 |
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107 | |||
108 | This will prompt the user if they are finished with the kernel, and if |
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108 | This will prompt the user if they are finished with the kernel, and if | |
109 | so, closes the kernel cleanly. Alternatively, if the exit magic is used, |
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109 | so, closes the kernel cleanly. Alternatively, if the exit magic is used, | |
110 | it closes without prompt. |
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110 | it closes without prompt. | |
111 | """ |
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111 | """ | |
112 | keepkernel = None #Use the prompt by default |
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112 | keepkernel = None #Use the prompt by default | |
113 | if hasattr(self._frontend,'_keep_kernel_on_exit'): #set by exit magic |
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113 | if hasattr(self._frontend,'_keep_kernel_on_exit'): #set by exit magic | |
114 | keepkernel = self._frontend._keep_kernel_on_exit |
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114 | keepkernel = self._frontend._keep_kernel_on_exit | |
115 |
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115 | |||
116 | kernel_manager = self._frontend.kernel_manager |
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116 | kernel_manager = self._frontend.kernel_manager | |
117 |
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117 | |||
118 | if keepkernel is None and not self._confirm_exit: |
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118 | if keepkernel is None and not self._confirm_exit: | |
119 | # don't prompt, just terminate the kernel if we own it |
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119 | # don't prompt, just terminate the kernel if we own it | |
120 | # or leave it alone if we don't |
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120 | # or leave it alone if we don't | |
121 | keepkernel = not self._existing |
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121 | keepkernel = not self._existing | |
122 |
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122 | |||
123 | if keepkernel is None: #show prompt |
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123 | if keepkernel is None: #show prompt | |
124 | if kernel_manager and kernel_manager.channels_running: |
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124 | if kernel_manager and kernel_manager.channels_running: | |
125 | title = self.window().windowTitle() |
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125 | title = self.window().windowTitle() | |
126 | cancel = QtGui.QMessageBox.Cancel |
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126 | cancel = QtGui.QMessageBox.Cancel | |
127 | okay = QtGui.QMessageBox.Ok |
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127 | okay = QtGui.QMessageBox.Ok | |
128 | if self._may_close: |
|
128 | if self._may_close: | |
129 | msg = "You are closing this Console window." |
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129 | msg = "You are closing this Console window." | |
130 | info = "Would you like to quit the Kernel and all attached Consoles as well?" |
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130 | info = "Would you like to quit the Kernel and all attached Consoles as well?" | |
131 | justthis = QtGui.QPushButton("&No, just this Console", self) |
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131 | justthis = QtGui.QPushButton("&No, just this Console", self) | |
132 | justthis.setShortcut('N') |
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132 | justthis.setShortcut('N') | |
133 | closeall = QtGui.QPushButton("&Yes, quit everything", self) |
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133 | closeall = QtGui.QPushButton("&Yes, quit everything", self) | |
134 | closeall.setShortcut('Y') |
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134 | closeall.setShortcut('Y') | |
135 | box = QtGui.QMessageBox(QtGui.QMessageBox.Question, |
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135 | box = QtGui.QMessageBox(QtGui.QMessageBox.Question, | |
136 | title, msg) |
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136 | title, msg) | |
137 | box.setInformativeText(info) |
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137 | box.setInformativeText(info) | |
138 | box.addButton(cancel) |
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138 | box.addButton(cancel) | |
139 | box.addButton(justthis, QtGui.QMessageBox.NoRole) |
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139 | box.addButton(justthis, QtGui.QMessageBox.NoRole) | |
140 | box.addButton(closeall, QtGui.QMessageBox.YesRole) |
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140 | box.addButton(closeall, QtGui.QMessageBox.YesRole) | |
141 | box.setDefaultButton(closeall) |
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141 | box.setDefaultButton(closeall) | |
142 | box.setEscapeButton(cancel) |
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142 | box.setEscapeButton(cancel) | |
143 | reply = box.exec_() |
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143 | reply = box.exec_() | |
144 | if reply == 1: # close All |
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144 | if reply == 1: # close All | |
145 | kernel_manager.shutdown_kernel() |
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145 | kernel_manager.shutdown_kernel() | |
146 | #kernel_manager.stop_channels() |
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146 | #kernel_manager.stop_channels() | |
147 | event.accept() |
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147 | event.accept() | |
148 | elif reply == 0: # close Console |
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148 | elif reply == 0: # close Console | |
149 | if not self._existing: |
|
149 | if not self._existing: | |
150 | # Have kernel: don't quit, just close the window |
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150 | # Have kernel: don't quit, just close the window | |
151 | self._app.setQuitOnLastWindowClosed(False) |
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151 | self._app.setQuitOnLastWindowClosed(False) | |
152 | self.deleteLater() |
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152 | self.deleteLater() | |
153 | event.accept() |
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153 | event.accept() | |
154 | else: |
|
154 | else: | |
155 | event.ignore() |
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155 | event.ignore() | |
156 | else: |
|
156 | else: | |
157 | reply = QtGui.QMessageBox.question(self, title, |
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157 | reply = QtGui.QMessageBox.question(self, title, | |
158 | "Are you sure you want to close this Console?"+ |
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158 | "Are you sure you want to close this Console?"+ | |
159 | "\nThe Kernel and other Consoles will remain active.", |
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159 | "\nThe Kernel and other Consoles will remain active.", | |
160 | okay|cancel, |
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160 | okay|cancel, | |
161 | defaultButton=okay |
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161 | defaultButton=okay | |
162 | ) |
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162 | ) | |
163 | if reply == okay: |
|
163 | if reply == okay: | |
164 | event.accept() |
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164 | event.accept() | |
165 | else: |
|
165 | else: | |
166 | event.ignore() |
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166 | event.ignore() | |
167 | elif keepkernel: #close console but leave kernel running (no prompt) |
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167 | elif keepkernel: #close console but leave kernel running (no prompt) | |
168 | if kernel_manager and kernel_manager.channels_running: |
|
168 | if kernel_manager and kernel_manager.channels_running: | |
169 | if not self._existing: |
|
169 | if not self._existing: | |
170 | # I have the kernel: don't quit, just close the window |
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170 | # I have the kernel: don't quit, just close the window | |
171 | self._app.setQuitOnLastWindowClosed(False) |
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171 | self._app.setQuitOnLastWindowClosed(False) | |
172 | event.accept() |
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172 | event.accept() | |
173 | else: #close console and kernel (no prompt) |
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173 | else: #close console and kernel (no prompt) | |
174 | if kernel_manager and kernel_manager.channels_running: |
|
174 | if kernel_manager and kernel_manager.channels_running: | |
175 | kernel_manager.shutdown_kernel() |
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175 | kernel_manager.shutdown_kernel() | |
176 | event.accept() |
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176 | event.accept() | |
177 |
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177 | |||
178 | #----------------------------------------------------------------------------- |
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178 | #----------------------------------------------------------------------------- | |
179 | # Aliases and Flags |
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179 | # Aliases and Flags | |
180 | #----------------------------------------------------------------------------- |
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180 | #----------------------------------------------------------------------------- | |
181 |
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181 | |||
182 | flags = dict(ipkernel_flags) |
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182 | flags = dict(ipkernel_flags) | |
183 | qt_flags = { |
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183 | qt_flags = { | |
184 | 'existing' : ({'IPythonQtConsoleApp' : {'existing' : 'kernel*.json'}}, |
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184 | 'existing' : ({'IPythonQtConsoleApp' : {'existing' : 'kernel*.json'}}, | |
185 | "Connect to an existing kernel. If no argument specified, guess most recent"), |
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185 | "Connect to an existing kernel. If no argument specified, guess most recent"), | |
186 | 'pure' : ({'IPythonQtConsoleApp' : {'pure' : True}}, |
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186 | 'pure' : ({'IPythonQtConsoleApp' : {'pure' : True}}, | |
187 | "Use a pure Python kernel instead of an IPython kernel."), |
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187 | "Use a pure Python kernel instead of an IPython kernel."), | |
188 | 'plain' : ({'ConsoleWidget' : {'kind' : 'plain'}}, |
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188 | 'plain' : ({'ConsoleWidget' : {'kind' : 'plain'}}, | |
189 | "Disable rich text support."), |
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189 | "Disable rich text support."), | |
190 | } |
|
190 | } | |
191 | qt_flags.update(boolean_flag( |
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191 | qt_flags.update(boolean_flag( | |
192 | 'gui-completion', 'ConsoleWidget.gui_completion', |
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192 | 'gui-completion', 'ConsoleWidget.gui_completion', | |
193 | "use a GUI widget for tab completion", |
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193 | "use a GUI widget for tab completion", | |
194 | "use plaintext output for completion" |
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194 | "use plaintext output for completion" | |
195 | )) |
|
195 | )) | |
196 | qt_flags.update(boolean_flag( |
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196 | qt_flags.update(boolean_flag( | |
197 | 'confirm-exit', 'IPythonQtConsoleApp.confirm_exit', |
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197 | 'confirm-exit', 'IPythonQtConsoleApp.confirm_exit', | |
198 | """Set to display confirmation dialog on exit. You can always use 'exit' or 'quit', |
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198 | """Set to display confirmation dialog on exit. You can always use 'exit' or 'quit', | |
199 | to force a direct exit without any confirmation. |
|
199 | to force a direct exit without any confirmation. | |
200 | """, |
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200 | """, | |
201 | """Don't prompt the user when exiting. This will terminate the kernel |
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201 | """Don't prompt the user when exiting. This will terminate the kernel | |
202 | if it is owned by the frontend, and leave it alive if it is external. |
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202 | if it is owned by the frontend, and leave it alive if it is external. | |
203 | """ |
|
203 | """ | |
204 | )) |
|
204 | )) | |
205 | flags.update(qt_flags) |
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205 | flags.update(qt_flags) | |
206 |
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206 | |||
207 | aliases = dict(ipkernel_aliases) |
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207 | aliases = dict(ipkernel_aliases) | |
208 |
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208 | |||
209 | qt_aliases = dict( |
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209 | qt_aliases = dict( | |
210 | hb = 'IPythonQtConsoleApp.hb_port', |
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210 | hb = 'IPythonQtConsoleApp.hb_port', | |
211 | shell = 'IPythonQtConsoleApp.shell_port', |
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211 | shell = 'IPythonQtConsoleApp.shell_port', | |
212 | iopub = 'IPythonQtConsoleApp.iopub_port', |
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212 | iopub = 'IPythonQtConsoleApp.iopub_port', | |
213 | stdin = 'IPythonQtConsoleApp.stdin_port', |
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213 | stdin = 'IPythonQtConsoleApp.stdin_port', | |
214 | ip = 'IPythonQtConsoleApp.ip', |
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214 | ip = 'IPythonQtConsoleApp.ip', | |
215 | existing = 'IPythonQtConsoleApp.existing', |
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215 | existing = 'IPythonQtConsoleApp.existing', | |
216 | f = 'IPythonQtConsoleApp.connection_file', |
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216 | f = 'IPythonQtConsoleApp.connection_file', | |
217 |
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217 | |||
218 | style = 'IPythonWidget.syntax_style', |
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218 | style = 'IPythonWidget.syntax_style', | |
219 | stylesheet = 'IPythonQtConsoleApp.stylesheet', |
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219 | stylesheet = 'IPythonQtConsoleApp.stylesheet', | |
220 | colors = 'ZMQInteractiveShell.colors', |
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220 | colors = 'ZMQInteractiveShell.colors', | |
221 |
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221 | |||
222 | editor = 'IPythonWidget.editor', |
|
222 | editor = 'IPythonWidget.editor', | |
223 | paging = 'ConsoleWidget.paging', |
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223 | paging = 'ConsoleWidget.paging', | |
224 | ssh = 'IPythonQtConsoleApp.sshserver', |
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224 | ssh = 'IPythonQtConsoleApp.sshserver', | |
225 | ) |
|
225 | ) | |
226 | aliases.update(qt_aliases) |
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226 | aliases.update(qt_aliases) | |
227 |
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227 | |||
228 |
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228 | |||
229 | #----------------------------------------------------------------------------- |
|
229 | #----------------------------------------------------------------------------- | |
230 | # IPythonQtConsole |
|
230 | # IPythonQtConsole | |
231 | #----------------------------------------------------------------------------- |
|
231 | #----------------------------------------------------------------------------- | |
232 |
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232 | |||
233 |
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233 | |||
234 | class IPythonQtConsoleApp(BaseIPythonApplication): |
|
234 | class IPythonQtConsoleApp(BaseIPythonApplication): | |
235 | name = 'ipython-qtconsole' |
|
235 | name = 'ipython-qtconsole' | |
236 | default_config_file_name='ipython_config.py' |
|
236 | default_config_file_name='ipython_config.py' | |
237 |
|
237 | |||
238 | description = """ |
|
238 | description = """ | |
239 | The IPython QtConsole. |
|
239 | The IPython QtConsole. | |
240 |
|
240 | |||
241 | This launches a Console-style application using Qt. It is not a full |
|
241 | This launches a Console-style application using Qt. It is not a full | |
242 | console, in that launched terminal subprocesses will not be able to accept |
|
242 | console, in that launched terminal subprocesses will not be able to accept | |
243 | input. |
|
243 | input. | |
244 |
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244 | |||
245 | The QtConsole supports various extra features beyond the Terminal IPython |
|
245 | The QtConsole supports various extra features beyond the Terminal IPython | |
246 | shell, such as inline plotting with matplotlib, via: |
|
246 | shell, such as inline plotting with matplotlib, via: | |
247 |
|
247 | |||
248 | ipython qtconsole --pylab=inline |
|
248 | ipython qtconsole --pylab=inline | |
249 |
|
249 | |||
250 | as well as saving your session as HTML, and printing the output. |
|
250 | as well as saving your session as HTML, and printing the output. | |
251 |
|
251 | |||
252 | """ |
|
252 | """ | |
253 | examples = _examples |
|
253 | examples = _examples | |
254 |
|
254 | |||
255 | classes = [IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session] |
|
255 | classes = [IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session] | |
256 | flags = Dict(flags) |
|
256 | flags = Dict(flags) | |
257 | aliases = Dict(aliases) |
|
257 | aliases = Dict(aliases) | |
258 |
|
258 | |||
259 | kernel_argv = List(Unicode) |
|
259 | kernel_argv = List(Unicode) | |
260 |
|
260 | |||
261 | # create requested profiles by default, if they don't exist: |
|
261 | # create requested profiles by default, if they don't exist: | |
262 | auto_create = CBool(True) |
|
262 | auto_create = CBool(True) | |
263 | # connection info: |
|
263 | # connection info: | |
264 | ip = Unicode(LOCALHOST, config=True, |
|
264 | ip = Unicode(LOCALHOST, config=True, | |
265 | help="""Set the kernel\'s IP address [default localhost]. |
|
265 | help="""Set the kernel\'s IP address [default localhost]. | |
266 | If the IP address is something other than localhost, then |
|
266 | If the IP address is something other than localhost, then | |
267 | Consoles on other machines will be able to connect |
|
267 | Consoles on other machines will be able to connect | |
268 | to the Kernel, so be careful!""" |
|
268 | to the Kernel, so be careful!""" | |
269 | ) |
|
269 | ) | |
270 |
|
270 | |||
271 | sshserver = Unicode('', config=True, |
|
271 | sshserver = Unicode('', config=True, | |
272 | help="""The SSH server to use to connect to the kernel.""") |
|
272 | help="""The SSH server to use to connect to the kernel.""") | |
273 | sshkey = Unicode('', config=True, |
|
273 | sshkey = Unicode('', config=True, | |
274 | help="""Path to the ssh key to use for logging in to the ssh server.""") |
|
274 | help="""Path to the ssh key to use for logging in to the ssh server.""") | |
275 |
|
275 | |||
276 | hb_port = Int(0, config=True, |
|
276 | hb_port = Int(0, config=True, | |
277 | help="set the heartbeat port [default: random]") |
|
277 | help="set the heartbeat port [default: random]") | |
278 | shell_port = Int(0, config=True, |
|
278 | shell_port = Int(0, config=True, | |
279 | help="set the shell (XREP) port [default: random]") |
|
279 | help="set the shell (XREP) port [default: random]") | |
280 | iopub_port = Int(0, config=True, |
|
280 | iopub_port = Int(0, config=True, | |
281 | help="set the iopub (PUB) port [default: random]") |
|
281 | help="set the iopub (PUB) port [default: random]") | |
282 | stdin_port = Int(0, config=True, |
|
282 | stdin_port = Int(0, config=True, | |
283 | help="set the stdin (XREQ) port [default: random]") |
|
283 | help="set the stdin (XREQ) port [default: random]") | |
284 | connection_file = Unicode('', config=True, |
|
284 | connection_file = Unicode('', config=True, | |
285 | help="""JSON file in which to store connection info [default: kernel-<pid>.json] |
|
285 | help="""JSON file in which to store connection info [default: kernel-<pid>.json] | |
286 |
|
286 | |||
287 | This file will contain the IP, ports, and authentication key needed to connect |
|
287 | This file will contain the IP, ports, and authentication key needed to connect | |
288 | clients to this kernel. By default, this file will be created in the security-dir |
|
288 | clients to this kernel. By default, this file will be created in the security-dir | |
289 | of the current profile, but can be specified by absolute path. |
|
289 | of the current profile, but can be specified by absolute path. | |
290 | """) |
|
290 | """) | |
291 | def _connection_file_default(self): |
|
291 | def _connection_file_default(self): | |
292 | return 'kernel-%i.json' % os.getpid() |
|
292 | return 'kernel-%i.json' % os.getpid() | |
293 |
|
293 | |||
294 | existing = Unicode('', config=True, |
|
294 | existing = Unicode('', config=True, | |
295 | help="""Connect to an already running kernel""") |
|
295 | help="""Connect to an already running kernel""") | |
296 |
|
296 | |||
297 | stylesheet = Unicode('', config=True, |
|
297 | stylesheet = Unicode('', config=True, | |
298 | help="path to a custom CSS stylesheet") |
|
298 | help="path to a custom CSS stylesheet") | |
299 |
|
299 | |||
300 | pure = CBool(False, config=True, |
|
300 | pure = CBool(False, config=True, | |
301 | help="Use a pure Python kernel instead of an IPython kernel.") |
|
301 | help="Use a pure Python kernel instead of an IPython kernel.") | |
302 | plain = CBool(False, config=True, |
|
302 | plain = CBool(False, config=True, | |
303 | help="Use a plaintext widget instead of rich text (plain can't print/save).") |
|
303 | help="Use a plaintext widget instead of rich text (plain can't print/save).") | |
304 |
|
304 | |||
305 | def _pure_changed(self, name, old, new): |
|
305 | def _pure_changed(self, name, old, new): | |
306 | kind = 'plain' if self.plain else 'rich' |
|
306 | kind = 'plain' if self.plain else 'rich' | |
307 | self.config.ConsoleWidget.kind = kind |
|
307 | self.config.ConsoleWidget.kind = kind | |
308 | if self.pure: |
|
308 | if self.pure: | |
309 | self.widget_factory = FrontendWidget |
|
309 | self.widget_factory = FrontendWidget | |
310 | elif self.plain: |
|
310 | elif self.plain: | |
311 | self.widget_factory = IPythonWidget |
|
311 | self.widget_factory = IPythonWidget | |
312 | else: |
|
312 | else: | |
313 | self.widget_factory = RichIPythonWidget |
|
313 | self.widget_factory = RichIPythonWidget | |
314 |
|
314 | |||
315 | _plain_changed = _pure_changed |
|
315 | _plain_changed = _pure_changed | |
316 |
|
316 | |||
317 | confirm_exit = CBool(True, config=True, |
|
317 | confirm_exit = CBool(True, config=True, | |
318 | help=""" |
|
318 | help=""" | |
319 | Set to display confirmation dialog on exit. You can always use 'exit' or 'quit', |
|
319 | Set to display confirmation dialog on exit. You can always use 'exit' or 'quit', | |
320 | to force a direct exit without any confirmation.""", |
|
320 | to force a direct exit without any confirmation.""", | |
321 | ) |
|
321 | ) | |
322 |
|
322 | |||
323 | # the factory for creating a widget |
|
323 | # the factory for creating a widget | |
324 | widget_factory = Any(RichIPythonWidget) |
|
324 | widget_factory = Any(RichIPythonWidget) | |
325 |
|
325 | |||
326 | def parse_command_line(self, argv=None): |
|
326 | def parse_command_line(self, argv=None): | |
327 | super(IPythonQtConsoleApp, self).parse_command_line(argv) |
|
327 | super(IPythonQtConsoleApp, self).parse_command_line(argv) | |
328 | if argv is None: |
|
328 | if argv is None: | |
329 | argv = sys.argv[1:] |
|
329 | argv = sys.argv[1:] | |
330 |
|
330 | |||
331 | self.kernel_argv = list(argv) # copy |
|
331 | self.kernel_argv = list(argv) # copy | |
332 | # kernel should inherit default config file from frontend |
|
332 | # kernel should inherit default config file from frontend | |
333 | self.kernel_argv.append("--KernelApp.parent_appname='%s'"%self.name) |
|
333 | self.kernel_argv.append("--KernelApp.parent_appname='%s'"%self.name) | |
334 | # Scrub frontend-specific flags |
|
334 | # Scrub frontend-specific flags | |
335 | for a in argv: |
|
335 | for a in argv: | |
336 | if a.startswith('-') and a.lstrip('-') in qt_flags: |
|
336 | if a.startswith('-') and a.lstrip('-') in qt_flags: | |
337 | self.kernel_argv.remove(a) |
|
337 | self.kernel_argv.remove(a) | |
338 | swallow_next = False |
|
338 | swallow_next = False | |
339 | for a in argv: |
|
339 | for a in argv: | |
340 | if swallow_next: |
|
340 | if swallow_next: | |
341 | self.kernel_argv.remove(a) |
|
341 | self.kernel_argv.remove(a) | |
342 | swallow_next = False |
|
342 | swallow_next = False | |
343 | continue |
|
343 | continue | |
344 | if a.startswith('-'): |
|
344 | if a.startswith('-'): | |
345 | split = a.lstrip('-').split('=')[0] |
|
345 | split = a.lstrip('-').split('=')[0] | |
346 | alias = split[0] |
|
346 | alias = split[0] | |
347 | if alias in qt_aliases: |
|
347 | if alias in qt_aliases: | |
348 | self.kernel_argv.remove(a) |
|
348 | self.kernel_argv.remove(a) | |
349 | if len(split) == 1: |
|
349 | if len(split) == 1: | |
350 | # alias passed with arg via space |
|
350 | # alias passed with arg via space | |
351 | swallow_next = True |
|
351 | swallow_next = True | |
352 |
|
352 | |||
353 | def init_connection_file(self): |
|
353 | def init_connection_file(self): | |
354 | """find the connection file, and load the info if found. |
|
354 | """find the connection file, and load the info if found. | |
355 |
|
355 | |||
356 | The current working directory and the current profile's security |
|
356 | The current working directory and the current profile's security | |
357 | directory will be searched for the file if it is not given by |
|
357 | directory will be searched for the file if it is not given by | |
358 | absolute path. |
|
358 | absolute path. | |
359 |
|
359 | |||
360 | When attempting to connect to an existing kernel and the `--existing` |
|
360 | When attempting to connect to an existing kernel and the `--existing` | |
361 | argument does not match an existing file, it will be interpreted as a |
|
361 | argument does not match an existing file, it will be interpreted as a | |
362 | fileglob, and the matching file in the current profile's security dir |
|
362 | fileglob, and the matching file in the current profile's security dir | |
363 | with the latest access time will be used. |
|
363 | with the latest access time will be used. | |
364 | """ |
|
364 | """ | |
365 | if self.existing: |
|
365 | if self.existing: | |
366 | try: |
|
366 | try: | |
367 | cf = find_connection_file(self.existing) |
|
367 | cf = find_connection_file(self.existing) | |
368 | except Exception: |
|
368 | except Exception: | |
369 | self.log.critical("Could not find existing kernel connection file %s", self.existing) |
|
369 | self.log.critical("Could not find existing kernel connection file %s", self.existing) | |
370 | self.exit(1) |
|
370 | self.exit(1) | |
371 | self.log.info("Connecting to existing kernel: %s" % cf) |
|
371 | self.log.info("Connecting to existing kernel: %s" % cf) | |
372 | self.connection_file = cf |
|
372 | self.connection_file = cf | |
373 | # should load_connection_file only be used for existing? |
|
373 | # should load_connection_file only be used for existing? | |
374 | # as it is now, this allows reusing ports if an existing |
|
374 | # as it is now, this allows reusing ports if an existing | |
375 | # file is requested |
|
375 | # file is requested | |
376 | self.load_connection_file() |
|
376 | try: | |
|
377 | self.load_connection_file() | |||
|
378 | except Exception: | |||
|
379 | self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True) | |||
|
380 | self.exit(1) | |||
377 |
|
381 | |||
378 | def load_connection_file(self): |
|
382 | def load_connection_file(self): | |
379 | """load ip/port/hmac config from JSON connection file""" |
|
383 | """load ip/port/hmac config from JSON connection file""" | |
380 | # this is identical to KernelApp.load_connection_file |
|
384 | # this is identical to KernelApp.load_connection_file | |
381 | # perhaps it can be centralized somewhere? |
|
385 | # perhaps it can be centralized somewhere? | |
382 | try: |
|
386 | try: | |
383 | fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir]) |
|
387 | fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir]) | |
384 | except IOError: |
|
388 | except IOError: | |
385 | self.log.debug("Connection File not found: %s", self.connection_file) |
|
389 | self.log.debug("Connection File not found: %s", self.connection_file) | |
386 | return |
|
390 | return | |
387 | self.log.debug(u"Loading connection file %s", fname) |
|
391 | self.log.debug(u"Loading connection file %s", fname) | |
388 | with open(fname) as f: |
|
392 | with open(fname) as f: | |
389 | s = f.read() |
|
393 | s = f.read() | |
390 | cfg = json.loads(s) |
|
394 | cfg = json.loads(s) | |
391 | if self.ip == LOCALHOST and 'ip' in cfg: |
|
395 | if self.ip == LOCALHOST and 'ip' in cfg: | |
392 | # not overridden by config or cl_args |
|
396 | # not overridden by config or cl_args | |
393 | self.ip = cfg['ip'] |
|
397 | self.ip = cfg['ip'] | |
394 | for channel in ('hb', 'shell', 'iopub', 'stdin'): |
|
398 | for channel in ('hb', 'shell', 'iopub', 'stdin'): | |
395 | name = channel + '_port' |
|
399 | name = channel + '_port' | |
396 | if getattr(self, name) == 0 and name in cfg: |
|
400 | if getattr(self, name) == 0 and name in cfg: | |
397 | # not overridden by config or cl_args |
|
401 | # not overridden by config or cl_args | |
398 | setattr(self, name, cfg[name]) |
|
402 | setattr(self, name, cfg[name]) | |
399 | if 'key' in cfg: |
|
403 | if 'key' in cfg: | |
400 | self.config.Session.key = str_to_bytes(cfg['key']) |
|
404 | self.config.Session.key = str_to_bytes(cfg['key']) | |
401 |
|
405 | |||
402 | def init_ssh(self): |
|
406 | def init_ssh(self): | |
403 | """set up ssh tunnels, if needed.""" |
|
407 | """set up ssh tunnels, if needed.""" | |
404 | if not self.sshserver and not self.sshkey: |
|
408 | if not self.sshserver and not self.sshkey: | |
405 | return |
|
409 | return | |
406 |
|
410 | |||
407 | if self.sshkey and not self.sshserver: |
|
411 | if self.sshkey and not self.sshserver: | |
408 | # specifying just the key implies that we are connecting directly |
|
412 | # specifying just the key implies that we are connecting directly | |
409 | self.sshserver = self.ip |
|
413 | self.sshserver = self.ip | |
410 | self.ip = LOCALHOST |
|
414 | self.ip = LOCALHOST | |
411 |
|
415 | |||
412 | # build connection dict for tunnels: |
|
416 | # build connection dict for tunnels: | |
413 | info = dict(ip=self.ip, |
|
417 | info = dict(ip=self.ip, | |
414 | shell_port=self.shell_port, |
|
418 | shell_port=self.shell_port, | |
415 | iopub_port=self.iopub_port, |
|
419 | iopub_port=self.iopub_port, | |
416 | stdin_port=self.stdin_port, |
|
420 | stdin_port=self.stdin_port, | |
417 | hb_port=self.hb_port |
|
421 | hb_port=self.hb_port | |
418 | ) |
|
422 | ) | |
419 |
|
423 | |||
420 | self.log.info("Forwarding connections to %s via %s"%(self.ip, self.sshserver)) |
|
424 | self.log.info("Forwarding connections to %s via %s"%(self.ip, self.sshserver)) | |
421 |
|
425 | |||
422 | # tunnels return a new set of ports, which will be on localhost: |
|
426 | # tunnels return a new set of ports, which will be on localhost: | |
423 | self.ip = LOCALHOST |
|
427 | self.ip = LOCALHOST | |
424 | try: |
|
428 | try: | |
425 | newports = tunnel_to_kernel(info, self.sshserver, self.sshkey) |
|
429 | newports = tunnel_to_kernel(info, self.sshserver, self.sshkey) | |
426 | except: |
|
430 | except: | |
427 | # even catch KeyboardInterrupt |
|
431 | # even catch KeyboardInterrupt | |
428 | self.log.error("Could not setup tunnels", exc_info=True) |
|
432 | self.log.error("Could not setup tunnels", exc_info=True) | |
429 | self.exit(1) |
|
433 | self.exit(1) | |
430 |
|
434 | |||
431 | self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = newports |
|
435 | self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = newports | |
432 |
|
436 | |||
433 | cf = self.connection_file |
|
437 | cf = self.connection_file | |
434 | base,ext = os.path.splitext(cf) |
|
438 | base,ext = os.path.splitext(cf) | |
435 | base = os.path.basename(base) |
|
439 | base = os.path.basename(base) | |
436 | self.connection_file = os.path.basename(base)+'-ssh'+ext |
|
440 | self.connection_file = os.path.basename(base)+'-ssh'+ext | |
437 | self.log.critical("To connect another client via this tunnel, use:") |
|
441 | self.log.critical("To connect another client via this tunnel, use:") | |
438 | self.log.critical("--existing %s" % self.connection_file) |
|
442 | self.log.critical("--existing %s" % self.connection_file) | |
439 |
|
443 | |||
440 | def init_kernel_manager(self): |
|
444 | def init_kernel_manager(self): | |
441 | # Don't let Qt or ZMQ swallow KeyboardInterupts. |
|
445 | # Don't let Qt or ZMQ swallow KeyboardInterupts. | |
442 | signal.signal(signal.SIGINT, signal.SIG_DFL) |
|
446 | signal.signal(signal.SIGINT, signal.SIG_DFL) | |
443 | sec = self.profile_dir.security_dir |
|
447 | sec = self.profile_dir.security_dir | |
444 | try: |
|
448 | try: | |
445 | cf = filefind(self.connection_file, ['.', sec]) |
|
449 | cf = filefind(self.connection_file, ['.', sec]) | |
446 | except IOError: |
|
450 | except IOError: | |
447 | # file might not exist |
|
451 | # file might not exist | |
448 | if self.connection_file == os.path.basename(self.connection_file): |
|
452 | if self.connection_file == os.path.basename(self.connection_file): | |
449 | # just shortname, put it in security dir |
|
453 | # just shortname, put it in security dir | |
450 | cf = os.path.join(sec, self.connection_file) |
|
454 | cf = os.path.join(sec, self.connection_file) | |
451 | else: |
|
455 | else: | |
452 | cf = self.connection_file |
|
456 | cf = self.connection_file | |
453 |
|
457 | |||
454 | # Create a KernelManager and start a kernel. |
|
458 | # Create a KernelManager and start a kernel. | |
455 | self.kernel_manager = QtKernelManager( |
|
459 | self.kernel_manager = QtKernelManager( | |
456 | ip=self.ip, |
|
460 | ip=self.ip, | |
457 | shell_port=self.shell_port, |
|
461 | shell_port=self.shell_port, | |
458 | iopub_port=self.iopub_port, |
|
462 | iopub_port=self.iopub_port, | |
459 | stdin_port=self.stdin_port, |
|
463 | stdin_port=self.stdin_port, | |
460 | hb_port=self.hb_port, |
|
464 | hb_port=self.hb_port, | |
461 | connection_file=cf, |
|
465 | connection_file=cf, | |
462 | config=self.config, |
|
466 | config=self.config, | |
463 | ) |
|
467 | ) | |
464 | # start the kernel |
|
468 | # start the kernel | |
465 | if not self.existing: |
|
469 | if not self.existing: | |
466 | kwargs = dict(ipython=not self.pure) |
|
470 | kwargs = dict(ipython=not self.pure) | |
467 | kwargs['extra_arguments'] = self.kernel_argv |
|
471 | kwargs['extra_arguments'] = self.kernel_argv | |
468 | self.kernel_manager.start_kernel(**kwargs) |
|
472 | self.kernel_manager.start_kernel(**kwargs) | |
469 | elif self.sshserver: |
|
473 | elif self.sshserver: | |
470 | # ssh, write new connection file |
|
474 | # ssh, write new connection file | |
471 | self.kernel_manager.write_connection_file() |
|
475 | self.kernel_manager.write_connection_file() | |
472 | self.kernel_manager.start_channels() |
|
476 | self.kernel_manager.start_channels() | |
473 |
|
477 | |||
474 |
|
478 | |||
475 | def init_qt_elements(self): |
|
479 | def init_qt_elements(self): | |
476 | # Create the widget. |
|
480 | # Create the widget. | |
477 | self.app = QtGui.QApplication([]) |
|
481 | self.app = QtGui.QApplication([]) | |
478 | local_kernel = (not self.existing) or self.ip in LOCAL_IPS |
|
482 | local_kernel = (not self.existing) or self.ip in LOCAL_IPS | |
479 | self.widget = self.widget_factory(config=self.config, |
|
483 | self.widget = self.widget_factory(config=self.config, | |
480 | local_kernel=local_kernel) |
|
484 | local_kernel=local_kernel) | |
481 | self.widget.kernel_manager = self.kernel_manager |
|
485 | self.widget.kernel_manager = self.kernel_manager | |
482 | self.window = MainWindow(self.app, self.widget, self.existing, |
|
486 | self.window = MainWindow(self.app, self.widget, self.existing, | |
483 | may_close=local_kernel, |
|
487 | may_close=local_kernel, | |
484 | confirm_exit=self.confirm_exit) |
|
488 | confirm_exit=self.confirm_exit) | |
485 | self.window.setWindowTitle('Python' if self.pure else 'IPython') |
|
489 | self.window.setWindowTitle('Python' if self.pure else 'IPython') | |
486 |
|
490 | |||
487 | def init_colors(self): |
|
491 | def init_colors(self): | |
488 | """Configure the coloring of the widget""" |
|
492 | """Configure the coloring of the widget""" | |
489 | # Note: This will be dramatically simplified when colors |
|
493 | # Note: This will be dramatically simplified when colors | |
490 | # are removed from the backend. |
|
494 | # are removed from the backend. | |
491 |
|
495 | |||
492 | if self.pure: |
|
496 | if self.pure: | |
493 | # only IPythonWidget supports styling |
|
497 | # only IPythonWidget supports styling | |
494 | return |
|
498 | return | |
495 |
|
499 | |||
496 | # parse the colors arg down to current known labels |
|
500 | # parse the colors arg down to current known labels | |
497 | try: |
|
501 | try: | |
498 | colors = self.config.ZMQInteractiveShell.colors |
|
502 | colors = self.config.ZMQInteractiveShell.colors | |
499 | except AttributeError: |
|
503 | except AttributeError: | |
500 | colors = None |
|
504 | colors = None | |
501 | try: |
|
505 | try: | |
502 | style = self.config.IPythonWidget.colors |
|
506 | style = self.config.IPythonWidget.colors | |
503 | except AttributeError: |
|
507 | except AttributeError: | |
504 | style = None |
|
508 | style = None | |
505 |
|
509 | |||
506 | # find the value for colors: |
|
510 | # find the value for colors: | |
507 | if colors: |
|
511 | if colors: | |
508 | colors=colors.lower() |
|
512 | colors=colors.lower() | |
509 | if colors in ('lightbg', 'light'): |
|
513 | if colors in ('lightbg', 'light'): | |
510 | colors='lightbg' |
|
514 | colors='lightbg' | |
511 | elif colors in ('dark', 'linux'): |
|
515 | elif colors in ('dark', 'linux'): | |
512 | colors='linux' |
|
516 | colors='linux' | |
513 | else: |
|
517 | else: | |
514 | colors='nocolor' |
|
518 | colors='nocolor' | |
515 | elif style: |
|
519 | elif style: | |
516 | if style=='bw': |
|
520 | if style=='bw': | |
517 | colors='nocolor' |
|
521 | colors='nocolor' | |
518 | elif styles.dark_style(style): |
|
522 | elif styles.dark_style(style): | |
519 | colors='linux' |
|
523 | colors='linux' | |
520 | else: |
|
524 | else: | |
521 | colors='lightbg' |
|
525 | colors='lightbg' | |
522 | else: |
|
526 | else: | |
523 | colors=None |
|
527 | colors=None | |
524 |
|
528 | |||
525 | # Configure the style. |
|
529 | # Configure the style. | |
526 | widget = self.widget |
|
530 | widget = self.widget | |
527 | if style: |
|
531 | if style: | |
528 | widget.style_sheet = styles.sheet_from_template(style, colors) |
|
532 | widget.style_sheet = styles.sheet_from_template(style, colors) | |
529 | widget.syntax_style = style |
|
533 | widget.syntax_style = style | |
530 | widget._syntax_style_changed() |
|
534 | widget._syntax_style_changed() | |
531 | widget._style_sheet_changed() |
|
535 | widget._style_sheet_changed() | |
532 | elif colors: |
|
536 | elif colors: | |
533 | # use a default style |
|
537 | # use a default style | |
534 | widget.set_default_style(colors=colors) |
|
538 | widget.set_default_style(colors=colors) | |
535 | else: |
|
539 | else: | |
536 | # this is redundant for now, but allows the widget's |
|
540 | # this is redundant for now, but allows the widget's | |
537 | # defaults to change |
|
541 | # defaults to change | |
538 | widget.set_default_style() |
|
542 | widget.set_default_style() | |
539 |
|
543 | |||
540 | if self.stylesheet: |
|
544 | if self.stylesheet: | |
541 | # we got an expicit stylesheet |
|
545 | # we got an expicit stylesheet | |
542 | if os.path.isfile(self.stylesheet): |
|
546 | if os.path.isfile(self.stylesheet): | |
543 | with open(self.stylesheet) as f: |
|
547 | with open(self.stylesheet) as f: | |
544 | sheet = f.read() |
|
548 | sheet = f.read() | |
545 | widget.style_sheet = sheet |
|
549 | widget.style_sheet = sheet | |
546 | widget._style_sheet_changed() |
|
550 | widget._style_sheet_changed() | |
547 | else: |
|
551 | else: | |
548 | raise IOError("Stylesheet %r not found."%self.stylesheet) |
|
552 | raise IOError("Stylesheet %r not found."%self.stylesheet) | |
549 |
|
553 | |||
550 | def initialize(self, argv=None): |
|
554 | def initialize(self, argv=None): | |
551 | super(IPythonQtConsoleApp, self).initialize(argv) |
|
555 | super(IPythonQtConsoleApp, self).initialize(argv) | |
552 | self.init_connection_file() |
|
556 | self.init_connection_file() | |
553 | default_secure(self.config) |
|
557 | default_secure(self.config) | |
554 | self.init_ssh() |
|
558 | self.init_ssh() | |
555 | self.init_kernel_manager() |
|
559 | self.init_kernel_manager() | |
556 | self.init_qt_elements() |
|
560 | self.init_qt_elements() | |
557 | self.init_colors() |
|
561 | self.init_colors() | |
558 | self.init_window_shortcut() |
|
562 | self.init_window_shortcut() | |
559 |
|
563 | |||
560 | def init_window_shortcut(self): |
|
564 | def init_window_shortcut(self): | |
561 | fullScreenAction = QtGui.QAction('Toggle Full Screen', self.window) |
|
565 | fullScreenAction = QtGui.QAction('Toggle Full Screen', self.window) | |
562 | fullScreenAction.setShortcut('Ctrl+Meta+Space') |
|
566 | fullScreenAction.setShortcut('Ctrl+Meta+Space') | |
563 | fullScreenAction.triggered.connect(self.toggleFullScreen) |
|
567 | fullScreenAction.triggered.connect(self.toggleFullScreen) | |
564 | self.window.addAction(fullScreenAction) |
|
568 | self.window.addAction(fullScreenAction) | |
565 |
|
569 | |||
566 | def toggleFullScreen(self): |
|
570 | def toggleFullScreen(self): | |
567 | if not self.window.isFullScreen(): |
|
571 | if not self.window.isFullScreen(): | |
568 | self.window.showFullScreen() |
|
572 | self.window.showFullScreen() | |
569 | else: |
|
573 | else: | |
570 | self.window.showNormal() |
|
574 | self.window.showNormal() | |
571 |
|
575 | |||
572 | def start(self): |
|
576 | def start(self): | |
573 |
|
577 | |||
574 | # draw the window |
|
578 | # draw the window | |
575 | self.window.show() |
|
579 | self.window.show() | |
576 |
|
580 | |||
577 | # Start the application main loop. |
|
581 | # Start the application main loop. | |
578 | self.app.exec_() |
|
582 | self.app.exec_() | |
579 |
|
583 | |||
580 | #----------------------------------------------------------------------------- |
|
584 | #----------------------------------------------------------------------------- | |
581 | # Main entry point |
|
585 | # Main entry point | |
582 | #----------------------------------------------------------------------------- |
|
586 | #----------------------------------------------------------------------------- | |
583 |
|
587 | |||
584 | def main(): |
|
588 | def main(): | |
585 | app = IPythonQtConsoleApp() |
|
589 | app = IPythonQtConsoleApp() | |
586 | app.initialize() |
|
590 | app.initialize() | |
587 | app.start() |
|
591 | app.start() | |
588 |
|
592 | |||
589 |
|
593 | |||
590 | if __name__ == '__main__': |
|
594 | if __name__ == '__main__': | |
591 | main() |
|
595 | main() |
@@ -1,295 +1,298 b'' | |||||
1 | """An Application for launching a kernel |
|
1 | """An Application for launching a kernel | |
2 |
|
2 | |||
3 | Authors |
|
3 | Authors | |
4 | ------- |
|
4 | ------- | |
5 | * MinRK |
|
5 | * MinRK | |
6 | """ |
|
6 | """ | |
7 | #----------------------------------------------------------------------------- |
|
7 | #----------------------------------------------------------------------------- | |
8 | # Copyright (C) 2011 The IPython Development Team |
|
8 | # Copyright (C) 2011 The IPython Development Team | |
9 | # |
|
9 | # | |
10 | # Distributed under the terms of the BSD License. The full license is in |
|
10 | # Distributed under the terms of the BSD License. The full license is in | |
11 | # the file COPYING.txt, distributed as part of this software. |
|
11 | # the file COPYING.txt, distributed as part of this software. | |
12 | #----------------------------------------------------------------------------- |
|
12 | #----------------------------------------------------------------------------- | |
13 |
|
13 | |||
14 | #----------------------------------------------------------------------------- |
|
14 | #----------------------------------------------------------------------------- | |
15 | # Imports |
|
15 | # Imports | |
16 | #----------------------------------------------------------------------------- |
|
16 | #----------------------------------------------------------------------------- | |
17 |
|
17 | |||
18 | # Standard library imports. |
|
18 | # Standard library imports. | |
|
19 | import json | |||
19 | import os |
|
20 | import os | |
20 | import sys |
|
21 | import sys | |
21 |
|
22 | |||
22 | # System library imports. |
|
23 | # System library imports. | |
23 | import zmq |
|
24 | import zmq | |
24 | from zmq.utils import jsonapi as json |
|
|||
25 |
|
25 | |||
26 | # IPython imports. |
|
26 | # IPython imports. | |
27 | from IPython.core.ultratb import FormattedTB |
|
27 | from IPython.core.ultratb import FormattedTB | |
28 | from IPython.core.application import ( |
|
28 | from IPython.core.application import ( | |
29 | BaseIPythonApplication, base_flags, base_aliases |
|
29 | BaseIPythonApplication, base_flags, base_aliases | |
30 | ) |
|
30 | ) | |
31 | from IPython.utils import io |
|
31 | from IPython.utils import io | |
32 | from IPython.utils.localinterfaces import LOCALHOST |
|
32 | from IPython.utils.localinterfaces import LOCALHOST | |
33 | from IPython.utils.path import filefind |
|
33 | from IPython.utils.path import filefind | |
34 | from IPython.utils.py3compat import str_to_bytes |
|
34 | from IPython.utils.py3compat import str_to_bytes | |
35 | from IPython.utils.traitlets import (Any, Instance, Dict, Unicode, Int, Bool, |
|
35 | from IPython.utils.traitlets import (Any, Instance, Dict, Unicode, Int, Bool, | |
36 | DottedObjectName) |
|
36 | DottedObjectName) | |
37 | from IPython.utils.importstring import import_item |
|
37 | from IPython.utils.importstring import import_item | |
38 | # local imports |
|
38 | # local imports | |
39 | from IPython.zmq.entry_point import write_connection_file |
|
39 | from IPython.zmq.entry_point import write_connection_file | |
40 | from IPython.zmq.heartbeat import Heartbeat |
|
40 | from IPython.zmq.heartbeat import Heartbeat | |
41 | from IPython.zmq.parentpoller import ParentPollerUnix, ParentPollerWindows |
|
41 | from IPython.zmq.parentpoller import ParentPollerUnix, ParentPollerWindows | |
42 | from IPython.zmq.session import ( |
|
42 | from IPython.zmq.session import ( | |
43 | Session, session_flags, session_aliases, default_secure, |
|
43 | Session, session_flags, session_aliases, default_secure, | |
44 | ) |
|
44 | ) | |
45 |
|
45 | |||
46 |
|
46 | |||
47 | #----------------------------------------------------------------------------- |
|
47 | #----------------------------------------------------------------------------- | |
48 | # Flags and Aliases |
|
48 | # Flags and Aliases | |
49 | #----------------------------------------------------------------------------- |
|
49 | #----------------------------------------------------------------------------- | |
50 |
|
50 | |||
51 | kernel_aliases = dict(base_aliases) |
|
51 | kernel_aliases = dict(base_aliases) | |
52 | kernel_aliases.update({ |
|
52 | kernel_aliases.update({ | |
53 | 'ip' : 'KernelApp.ip', |
|
53 | 'ip' : 'KernelApp.ip', | |
54 | 'hb' : 'KernelApp.hb_port', |
|
54 | 'hb' : 'KernelApp.hb_port', | |
55 | 'shell' : 'KernelApp.shell_port', |
|
55 | 'shell' : 'KernelApp.shell_port', | |
56 | 'iopub' : 'KernelApp.iopub_port', |
|
56 | 'iopub' : 'KernelApp.iopub_port', | |
57 | 'stdin' : 'KernelApp.stdin_port', |
|
57 | 'stdin' : 'KernelApp.stdin_port', | |
58 | 'f' : 'KernelApp.connection_file', |
|
58 | 'f' : 'KernelApp.connection_file', | |
59 | 'parent': 'KernelApp.parent', |
|
59 | 'parent': 'KernelApp.parent', | |
60 | }) |
|
60 | }) | |
61 | if sys.platform.startswith('win'): |
|
61 | if sys.platform.startswith('win'): | |
62 | kernel_aliases['interrupt'] = 'KernelApp.interrupt' |
|
62 | kernel_aliases['interrupt'] = 'KernelApp.interrupt' | |
63 |
|
63 | |||
64 | kernel_flags = dict(base_flags) |
|
64 | kernel_flags = dict(base_flags) | |
65 | kernel_flags.update({ |
|
65 | kernel_flags.update({ | |
66 | 'no-stdout' : ( |
|
66 | 'no-stdout' : ( | |
67 | {'KernelApp' : {'no_stdout' : True}}, |
|
67 | {'KernelApp' : {'no_stdout' : True}}, | |
68 | "redirect stdout to the null device"), |
|
68 | "redirect stdout to the null device"), | |
69 | 'no-stderr' : ( |
|
69 | 'no-stderr' : ( | |
70 | {'KernelApp' : {'no_stderr' : True}}, |
|
70 | {'KernelApp' : {'no_stderr' : True}}, | |
71 | "redirect stderr to the null device"), |
|
71 | "redirect stderr to the null device"), | |
72 | }) |
|
72 | }) | |
73 |
|
73 | |||
74 | # inherit flags&aliases for Sessions |
|
74 | # inherit flags&aliases for Sessions | |
75 | kernel_aliases.update(session_aliases) |
|
75 | kernel_aliases.update(session_aliases) | |
76 | kernel_flags.update(session_flags) |
|
76 | kernel_flags.update(session_flags) | |
77 |
|
77 | |||
78 |
|
78 | |||
79 |
|
79 | |||
80 | #----------------------------------------------------------------------------- |
|
80 | #----------------------------------------------------------------------------- | |
81 | # Application class for starting a Kernel |
|
81 | # Application class for starting a Kernel | |
82 | #----------------------------------------------------------------------------- |
|
82 | #----------------------------------------------------------------------------- | |
83 |
|
83 | |||
84 | class KernelApp(BaseIPythonApplication): |
|
84 | class KernelApp(BaseIPythonApplication): | |
85 | name='pykernel' |
|
85 | name='pykernel' | |
86 | aliases = Dict(kernel_aliases) |
|
86 | aliases = Dict(kernel_aliases) | |
87 | flags = Dict(kernel_flags) |
|
87 | flags = Dict(kernel_flags) | |
88 | classes = [Session] |
|
88 | classes = [Session] | |
89 | # the kernel class, as an importstring |
|
89 | # the kernel class, as an importstring | |
90 | kernel_class = DottedObjectName('IPython.zmq.pykernel.Kernel') |
|
90 | kernel_class = DottedObjectName('IPython.zmq.pykernel.Kernel') | |
91 | kernel = Any() |
|
91 | kernel = Any() | |
92 | poller = Any() # don't restrict this even though current pollers are all Threads |
|
92 | poller = Any() # don't restrict this even though current pollers are all Threads | |
93 | heartbeat = Instance(Heartbeat) |
|
93 | heartbeat = Instance(Heartbeat) | |
94 | session = Instance('IPython.zmq.session.Session') |
|
94 | session = Instance('IPython.zmq.session.Session') | |
95 | ports = Dict() |
|
95 | ports = Dict() | |
96 |
|
96 | |||
97 | # inherit config file name from parent: |
|
97 | # inherit config file name from parent: | |
98 | parent_appname = Unicode(config=True) |
|
98 | parent_appname = Unicode(config=True) | |
99 | def _parent_appname_changed(self, name, old, new): |
|
99 | def _parent_appname_changed(self, name, old, new): | |
100 | if self.config_file_specified: |
|
100 | if self.config_file_specified: | |
101 | # it was manually specified, ignore |
|
101 | # it was manually specified, ignore | |
102 | return |
|
102 | return | |
103 | self.config_file_name = new.replace('-','_') + u'_config.py' |
|
103 | self.config_file_name = new.replace('-','_') + u'_config.py' | |
104 | # don't let this count as specifying the config file |
|
104 | # don't let this count as specifying the config file | |
105 | self.config_file_specified = False |
|
105 | self.config_file_specified = False | |
106 |
|
106 | |||
107 | # connection info: |
|
107 | # connection info: | |
108 | ip = Unicode(LOCALHOST, config=True, |
|
108 | ip = Unicode(LOCALHOST, config=True, | |
109 | help="Set the IP or interface on which the kernel will listen.") |
|
109 | help="Set the IP or interface on which the kernel will listen.") | |
110 | hb_port = Int(0, config=True, help="set the heartbeat port [default: random]") |
|
110 | hb_port = Int(0, config=True, help="set the heartbeat port [default: random]") | |
111 | shell_port = Int(0, config=True, help="set the shell (XREP) port [default: random]") |
|
111 | shell_port = Int(0, config=True, help="set the shell (XREP) port [default: random]") | |
112 | iopub_port = Int(0, config=True, help="set the iopub (PUB) port [default: random]") |
|
112 | iopub_port = Int(0, config=True, help="set the iopub (PUB) port [default: random]") | |
113 | stdin_port = Int(0, config=True, help="set the stdin (XREQ) port [default: random]") |
|
113 | stdin_port = Int(0, config=True, help="set the stdin (XREQ) port [default: random]") | |
114 | connection_file = Unicode('', config=True, |
|
114 | connection_file = Unicode('', config=True, | |
115 | help="""JSON file in which to store connection info [default: kernel-<pid>.json] |
|
115 | help="""JSON file in which to store connection info [default: kernel-<pid>.json] | |
116 |
|
116 | |||
117 | This file will contain the IP, ports, and authentication key needed to connect |
|
117 | This file will contain the IP, ports, and authentication key needed to connect | |
118 | clients to this kernel. By default, this file will be created in the security-dir |
|
118 | clients to this kernel. By default, this file will be created in the security-dir | |
119 | of the current profile, but can be specified by absolute path. |
|
119 | of the current profile, but can be specified by absolute path. | |
120 | """) |
|
120 | """) | |
121 |
|
121 | |||
122 | # streams, etc. |
|
122 | # streams, etc. | |
123 | no_stdout = Bool(False, config=True, help="redirect stdout to the null device") |
|
123 | no_stdout = Bool(False, config=True, help="redirect stdout to the null device") | |
124 | no_stderr = Bool(False, config=True, help="redirect stderr to the null device") |
|
124 | no_stderr = Bool(False, config=True, help="redirect stderr to the null device") | |
125 | outstream_class = DottedObjectName('IPython.zmq.iostream.OutStream', |
|
125 | outstream_class = DottedObjectName('IPython.zmq.iostream.OutStream', | |
126 | config=True, help="The importstring for the OutStream factory") |
|
126 | config=True, help="The importstring for the OutStream factory") | |
127 | displayhook_class = DottedObjectName('IPython.zmq.displayhook.ZMQDisplayHook', |
|
127 | displayhook_class = DottedObjectName('IPython.zmq.displayhook.ZMQDisplayHook', | |
128 | config=True, help="The importstring for the DisplayHook factory") |
|
128 | config=True, help="The importstring for the DisplayHook factory") | |
129 |
|
129 | |||
130 | # polling |
|
130 | # polling | |
131 | parent = Int(0, config=True, |
|
131 | parent = Int(0, config=True, | |
132 | help="""kill this process if its parent dies. On Windows, the argument |
|
132 | help="""kill this process if its parent dies. On Windows, the argument | |
133 | specifies the HANDLE of the parent process, otherwise it is simply boolean. |
|
133 | specifies the HANDLE of the parent process, otherwise it is simply boolean. | |
134 | """) |
|
134 | """) | |
135 | interrupt = Int(0, config=True, |
|
135 | interrupt = Int(0, config=True, | |
136 | help="""ONLY USED ON WINDOWS |
|
136 | help="""ONLY USED ON WINDOWS | |
137 | Interrupt this process when the parent is signalled. |
|
137 | Interrupt this process when the parent is signalled. | |
138 | """) |
|
138 | """) | |
139 |
|
139 | |||
140 | def init_crash_handler(self): |
|
140 | def init_crash_handler(self): | |
141 | # Install minimal exception handling |
|
141 | # Install minimal exception handling | |
142 | sys.excepthook = FormattedTB(mode='Verbose', color_scheme='NoColor', |
|
142 | sys.excepthook = FormattedTB(mode='Verbose', color_scheme='NoColor', | |
143 | ostream=sys.__stdout__) |
|
143 | ostream=sys.__stdout__) | |
144 |
|
144 | |||
145 | def init_poller(self): |
|
145 | def init_poller(self): | |
146 | if sys.platform == 'win32': |
|
146 | if sys.platform == 'win32': | |
147 | if self.interrupt or self.parent: |
|
147 | if self.interrupt or self.parent: | |
148 | self.poller = ParentPollerWindows(self.interrupt, self.parent) |
|
148 | self.poller = ParentPollerWindows(self.interrupt, self.parent) | |
149 | elif self.parent: |
|
149 | elif self.parent: | |
150 | self.poller = ParentPollerUnix() |
|
150 | self.poller = ParentPollerUnix() | |
151 |
|
151 | |||
152 | def _bind_socket(self, s, port): |
|
152 | def _bind_socket(self, s, port): | |
153 | iface = 'tcp://%s' % self.ip |
|
153 | iface = 'tcp://%s' % self.ip | |
154 | if port <= 0: |
|
154 | if port <= 0: | |
155 | port = s.bind_to_random_port(iface) |
|
155 | port = s.bind_to_random_port(iface) | |
156 | else: |
|
156 | else: | |
157 | s.bind(iface + ':%i'%port) |
|
157 | s.bind(iface + ':%i'%port) | |
158 | return port |
|
158 | return port | |
159 |
|
159 | |||
160 | def load_connection_file(self): |
|
160 | def load_connection_file(self): | |
161 | """load ip/port/hmac config from JSON connection file""" |
|
161 | """load ip/port/hmac config from JSON connection file""" | |
162 | try: |
|
162 | try: | |
163 | fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir]) |
|
163 | fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir]) | |
164 | except IOError: |
|
164 | except IOError: | |
165 | self.log.debug("Connection file not found: %s", self.connection_file) |
|
165 | self.log.debug("Connection file not found: %s", self.connection_file) | |
166 | return |
|
166 | return | |
167 | self.log.debug(u"Loading connection file %s", fname) |
|
167 | self.log.debug(u"Loading connection file %s", fname) | |
168 | with open(fname) as f: |
|
168 | with open(fname) as f: | |
169 | s = f.read() |
|
169 | s = f.read() | |
170 | cfg = json.loads(s) |
|
170 | cfg = json.loads(s) | |
171 | if self.ip == LOCALHOST and 'ip' in cfg: |
|
171 | if self.ip == LOCALHOST and 'ip' in cfg: | |
172 | # not overridden by config or cl_args |
|
172 | # not overridden by config or cl_args | |
173 | self.ip = cfg['ip'] |
|
173 | self.ip = cfg['ip'] | |
174 | for channel in ('hb', 'shell', 'iopub', 'stdin'): |
|
174 | for channel in ('hb', 'shell', 'iopub', 'stdin'): | |
175 | name = channel + '_port' |
|
175 | name = channel + '_port' | |
176 | if getattr(self, name) == 0 and name in cfg: |
|
176 | if getattr(self, name) == 0 and name in cfg: | |
177 | # not overridden by config or cl_args |
|
177 | # not overridden by config or cl_args | |
178 | setattr(self, name, cfg[name]) |
|
178 | setattr(self, name, cfg[name]) | |
179 | if 'key' in cfg: |
|
179 | if 'key' in cfg: | |
180 | self.config.Session.key = str_to_bytes(cfg['key']) |
|
180 | self.config.Session.key = str_to_bytes(cfg['key']) | |
181 |
|
181 | |||
182 | def write_connection_file(self): |
|
182 | def write_connection_file(self): | |
183 | """write connection info to JSON file""" |
|
183 | """write connection info to JSON file""" | |
184 | if os.path.basename(self.connection_file) == self.connection_file: |
|
184 | if os.path.basename(self.connection_file) == self.connection_file: | |
185 | cf = os.path.join(self.profile_dir.security_dir, self.connection_file) |
|
185 | cf = os.path.join(self.profile_dir.security_dir, self.connection_file) | |
186 | else: |
|
186 | else: | |
187 | cf = self.connection_file |
|
187 | cf = self.connection_file | |
188 | write_connection_file(cf, ip=self.ip, key=self.session.key, |
|
188 | write_connection_file(cf, ip=self.ip, key=self.session.key, | |
189 | shell_port=self.shell_port, stdin_port=self.stdin_port, hb_port=self.hb_port, |
|
189 | shell_port=self.shell_port, stdin_port=self.stdin_port, hb_port=self.hb_port, | |
190 | iopub_port=self.iopub_port) |
|
190 | iopub_port=self.iopub_port) | |
191 |
|
191 | |||
192 | def init_connection_file(self): |
|
192 | def init_connection_file(self): | |
193 | if not self.connection_file: |
|
193 | if not self.connection_file: | |
194 | self.connection_file = "kernel-%s.json"%os.getpid() |
|
194 | self.connection_file = "kernel-%s.json"%os.getpid() | |
195 |
|
195 | try: | ||
196 | self.load_connection_file() |
|
196 | self.load_connection_file() | |
|
197 | except Exception: | |||
|
198 | self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True) | |||
|
199 | self.exit(1) | |||
197 |
|
200 | |||
198 | def init_sockets(self): |
|
201 | def init_sockets(self): | |
199 | # Create a context, a session, and the kernel sockets. |
|
202 | # Create a context, a session, and the kernel sockets. | |
200 | self.log.info("Starting the kernel at pid: %i", os.getpid()) |
|
203 | self.log.info("Starting the kernel at pid: %i", os.getpid()) | |
201 | context = zmq.Context.instance() |
|
204 | context = zmq.Context.instance() | |
202 | # Uncomment this to try closing the context. |
|
205 | # Uncomment this to try closing the context. | |
203 | # atexit.register(context.term) |
|
206 | # atexit.register(context.term) | |
204 |
|
207 | |||
205 | self.shell_socket = context.socket(zmq.ROUTER) |
|
208 | self.shell_socket = context.socket(zmq.ROUTER) | |
206 | self.shell_port = self._bind_socket(self.shell_socket, self.shell_port) |
|
209 | self.shell_port = self._bind_socket(self.shell_socket, self.shell_port) | |
207 | self.log.debug("shell ROUTER Channel on port: %i"%self.shell_port) |
|
210 | self.log.debug("shell ROUTER Channel on port: %i"%self.shell_port) | |
208 |
|
211 | |||
209 | self.iopub_socket = context.socket(zmq.PUB) |
|
212 | self.iopub_socket = context.socket(zmq.PUB) | |
210 | self.iopub_port = self._bind_socket(self.iopub_socket, self.iopub_port) |
|
213 | self.iopub_port = self._bind_socket(self.iopub_socket, self.iopub_port) | |
211 | self.log.debug("iopub PUB Channel on port: %i"%self.iopub_port) |
|
214 | self.log.debug("iopub PUB Channel on port: %i"%self.iopub_port) | |
212 |
|
215 | |||
213 | self.stdin_socket = context.socket(zmq.ROUTER) |
|
216 | self.stdin_socket = context.socket(zmq.ROUTER) | |
214 | self.stdin_port = self._bind_socket(self.stdin_socket, self.stdin_port) |
|
217 | self.stdin_port = self._bind_socket(self.stdin_socket, self.stdin_port) | |
215 | self.log.debug("stdin ROUTER Channel on port: %i"%self.stdin_port) |
|
218 | self.log.debug("stdin ROUTER Channel on port: %i"%self.stdin_port) | |
216 |
|
219 | |||
217 | self.heartbeat = Heartbeat(context, (self.ip, self.hb_port)) |
|
220 | self.heartbeat = Heartbeat(context, (self.ip, self.hb_port)) | |
218 | self.hb_port = self.heartbeat.port |
|
221 | self.hb_port = self.heartbeat.port | |
219 | self.log.debug("Heartbeat REP Channel on port: %i"%self.hb_port) |
|
222 | self.log.debug("Heartbeat REP Channel on port: %i"%self.hb_port) | |
220 |
|
223 | |||
221 | # Helper to make it easier to connect to an existing kernel. |
|
224 | # Helper to make it easier to connect to an existing kernel. | |
222 | # set log-level to critical, to make sure it is output |
|
225 | # set log-level to critical, to make sure it is output | |
223 | self.log.critical("To connect another client to this kernel, use:") |
|
226 | self.log.critical("To connect another client to this kernel, use:") | |
224 |
|
227 | |||
225 | basename = os.path.basename(self.connection_file) |
|
228 | basename = os.path.basename(self.connection_file) | |
226 | if basename == self.connection_file or \ |
|
229 | if basename == self.connection_file or \ | |
227 | os.path.dirname(self.connection_file) == self.profile_dir.security_dir: |
|
230 | os.path.dirname(self.connection_file) == self.profile_dir.security_dir: | |
228 | # use shortname |
|
231 | # use shortname | |
229 | tail = basename |
|
232 | tail = basename | |
230 | if self.profile != 'default': |
|
233 | if self.profile != 'default': | |
231 | tail += " --profile %s" % self.profile |
|
234 | tail += " --profile %s" % self.profile | |
232 | else: |
|
235 | else: | |
233 | tail = self.connection_file |
|
236 | tail = self.connection_file | |
234 | self.log.critical("--existing %s", tail) |
|
237 | self.log.critical("--existing %s", tail) | |
235 |
|
238 | |||
236 |
|
239 | |||
237 | self.ports = dict(shell=self.shell_port, iopub=self.iopub_port, |
|
240 | self.ports = dict(shell=self.shell_port, iopub=self.iopub_port, | |
238 | stdin=self.stdin_port, hb=self.hb_port) |
|
241 | stdin=self.stdin_port, hb=self.hb_port) | |
239 |
|
242 | |||
240 | def init_session(self): |
|
243 | def init_session(self): | |
241 | """create our session object""" |
|
244 | """create our session object""" | |
242 | default_secure(self.config) |
|
245 | default_secure(self.config) | |
243 | self.session = Session(config=self.config, username=u'kernel') |
|
246 | self.session = Session(config=self.config, username=u'kernel') | |
244 |
|
247 | |||
245 | def init_blackhole(self): |
|
248 | def init_blackhole(self): | |
246 | """redirects stdout/stderr to devnull if necessary""" |
|
249 | """redirects stdout/stderr to devnull if necessary""" | |
247 | if self.no_stdout or self.no_stderr: |
|
250 | if self.no_stdout or self.no_stderr: | |
248 | blackhole = file(os.devnull, 'w') |
|
251 | blackhole = file(os.devnull, 'w') | |
249 | if self.no_stdout: |
|
252 | if self.no_stdout: | |
250 | sys.stdout = sys.__stdout__ = blackhole |
|
253 | sys.stdout = sys.__stdout__ = blackhole | |
251 | if self.no_stderr: |
|
254 | if self.no_stderr: | |
252 | sys.stderr = sys.__stderr__ = blackhole |
|
255 | sys.stderr = sys.__stderr__ = blackhole | |
253 |
|
256 | |||
254 | def init_io(self): |
|
257 | def init_io(self): | |
255 | """Redirect input streams and set a display hook.""" |
|
258 | """Redirect input streams and set a display hook.""" | |
256 | if self.outstream_class: |
|
259 | if self.outstream_class: | |
257 | outstream_factory = import_item(str(self.outstream_class)) |
|
260 | outstream_factory = import_item(str(self.outstream_class)) | |
258 | sys.stdout = outstream_factory(self.session, self.iopub_socket, u'stdout') |
|
261 | sys.stdout = outstream_factory(self.session, self.iopub_socket, u'stdout') | |
259 | sys.stderr = outstream_factory(self.session, self.iopub_socket, u'stderr') |
|
262 | sys.stderr = outstream_factory(self.session, self.iopub_socket, u'stderr') | |
260 | if self.displayhook_class: |
|
263 | if self.displayhook_class: | |
261 | displayhook_factory = import_item(str(self.displayhook_class)) |
|
264 | displayhook_factory = import_item(str(self.displayhook_class)) | |
262 | sys.displayhook = displayhook_factory(self.session, self.iopub_socket) |
|
265 | sys.displayhook = displayhook_factory(self.session, self.iopub_socket) | |
263 |
|
266 | |||
264 | def init_kernel(self): |
|
267 | def init_kernel(self): | |
265 | """Create the Kernel object itself""" |
|
268 | """Create the Kernel object itself""" | |
266 | kernel_factory = import_item(str(self.kernel_class)) |
|
269 | kernel_factory = import_item(str(self.kernel_class)) | |
267 | self.kernel = kernel_factory(config=self.config, session=self.session, |
|
270 | self.kernel = kernel_factory(config=self.config, session=self.session, | |
268 | shell_socket=self.shell_socket, |
|
271 | shell_socket=self.shell_socket, | |
269 | iopub_socket=self.iopub_socket, |
|
272 | iopub_socket=self.iopub_socket, | |
270 | stdin_socket=self.stdin_socket, |
|
273 | stdin_socket=self.stdin_socket, | |
271 | log=self.log |
|
274 | log=self.log | |
272 | ) |
|
275 | ) | |
273 | self.kernel.record_ports(self.ports) |
|
276 | self.kernel.record_ports(self.ports) | |
274 |
|
277 | |||
275 | def initialize(self, argv=None): |
|
278 | def initialize(self, argv=None): | |
276 | super(KernelApp, self).initialize(argv) |
|
279 | super(KernelApp, self).initialize(argv) | |
277 | self.init_blackhole() |
|
280 | self.init_blackhole() | |
278 | self.init_connection_file() |
|
281 | self.init_connection_file() | |
279 | self.init_session() |
|
282 | self.init_session() | |
280 | self.init_poller() |
|
283 | self.init_poller() | |
281 | self.init_sockets() |
|
284 | self.init_sockets() | |
282 | # writing connection file must be *after* init_sockets |
|
285 | # writing connection file must be *after* init_sockets | |
283 | self.write_connection_file() |
|
286 | self.write_connection_file() | |
284 | self.init_io() |
|
287 | self.init_io() | |
285 | self.init_kernel() |
|
288 | self.init_kernel() | |
286 |
|
289 | |||
287 | def start(self): |
|
290 | def start(self): | |
288 | self.heartbeat.start() |
|
291 | self.heartbeat.start() | |
289 | if self.poller is not None: |
|
292 | if self.poller is not None: | |
290 | self.poller.start() |
|
293 | self.poller.start() | |
291 | try: |
|
294 | try: | |
292 | self.kernel.start() |
|
295 | self.kernel.start() | |
293 | except KeyboardInterrupt: |
|
296 | except KeyboardInterrupt: | |
294 | pass |
|
297 | pass | |
295 |
|
298 |
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