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@@ -1,157 +1,157 b'' | |||
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1 | 1 | """ A minimal application using the Qt console-style IPython frontend. |
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2 | 2 | """ |
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3 | 3 | |
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4 | 4 | #----------------------------------------------------------------------------- |
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5 | 5 | # Imports |
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6 | 6 | #----------------------------------------------------------------------------- |
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7 | 7 | |
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8 | 8 | # Systemm library imports |
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9 | 9 | from PyQt4 import QtGui |
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10 | 10 | |
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11 | 11 | # Local imports |
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12 | 12 | from IPython.external.argparse import ArgumentParser |
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13 | 13 | from IPython.frontend.qt.console.frontend_widget import FrontendWidget |
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14 | 14 | from IPython.frontend.qt.console.ipython_widget import IPythonWidget |
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15 | 15 | from IPython.frontend.qt.console.rich_ipython_widget import RichIPythonWidget |
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16 | 16 | from IPython.frontend.qt.kernelmanager import QtKernelManager |
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17 | 17 | |
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18 | 18 | #----------------------------------------------------------------------------- |
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19 | 19 | # Constants |
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20 | 20 | #----------------------------------------------------------------------------- |
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21 | 21 | |
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22 | 22 | LOCALHOST = '127.0.0.1' |
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23 | 23 | |
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24 | 24 | #----------------------------------------------------------------------------- |
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25 | 25 | # Classes |
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26 | 26 | #----------------------------------------------------------------------------- |
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27 | 27 | |
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28 | 28 | class MainWindow(QtGui.QMainWindow): |
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29 | 29 | |
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30 | 30 | #--------------------------------------------------------------------------- |
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31 | 31 | # 'object' interface |
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32 | 32 | #--------------------------------------------------------------------------- |
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33 | 33 | |
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34 | 34 | def __init__(self, frontend, existing=False): |
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35 | 35 | """ Create a MainWindow for the specified FrontendWidget. |
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36 | 36 | """ |
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37 | 37 | super(MainWindow, self).__init__() |
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38 | 38 | self._frontend = frontend |
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39 | 39 | self._existing = existing |
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40 | 40 | self._frontend.exit_requested.connect(self.close) |
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41 | 41 | self.setCentralWidget(frontend) |
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42 | 42 | |
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43 | 43 | #--------------------------------------------------------------------------- |
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44 | 44 | # QWidget interface |
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45 | 45 | #--------------------------------------------------------------------------- |
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46 | 46 | |
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47 | 47 | def closeEvent(self, event): |
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48 | 48 | """ Reimplemented to prompt the user and close the kernel cleanly. |
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49 | 49 | """ |
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50 | 50 | kernel_manager = self._frontend.kernel_manager |
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51 | 51 | # closeall = |
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52 | 52 | if kernel_manager and kernel_manager.channels_running: |
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53 | 53 | title = self.window().windowTitle() |
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54 | 54 | reply = QtGui.QMessageBox.question(self, title, |
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55 | 55 | "Close just this console, or shutdown the kernel and close "+ |
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56 |
"all windows attached to it?", |
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57 | 'Close Console', 'Close All') | |
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56 | "all windows attached to it?", | |
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57 | 'Cancel', 'Close Console', 'Close All') | |
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58 | 58 | print reply |
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59 | 59 | if reply == 2: |
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60 | 60 | kernel_manager.shutdown_kernel() |
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61 | 61 | #kernel_manager.stop_channels() |
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62 | 62 | event.accept() |
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63 | 63 | elif reply == 1: |
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64 | 64 | if self._existing: |
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65 | 65 | # I don't have the Kernel, I can shutdown |
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66 | 66 | event.accept() |
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67 | 67 | else: |
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68 | 68 | # only destroy the Window, save the Kernel |
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69 | 69 | self.destroy() |
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70 | 70 | event.ignore() |
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71 | 71 | else: |
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72 | 72 | event.ignore() |
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73 | 73 | |
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74 | 74 | #----------------------------------------------------------------------------- |
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75 | 75 | # Main entry point |
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76 | 76 | #----------------------------------------------------------------------------- |
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77 | 77 | |
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78 | 78 | def main(): |
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79 | 79 | """ Entry point for application. |
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80 | 80 | """ |
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81 | 81 | # Parse command line arguments. |
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82 | 82 | parser = ArgumentParser() |
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83 | 83 | kgroup = parser.add_argument_group('kernel options') |
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84 | 84 | kgroup.add_argument('-e', '--existing', action='store_true', |
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85 | 85 | help='connect to an existing kernel') |
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86 | 86 | kgroup.add_argument('--ip', type=str, default=LOCALHOST, |
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87 | 87 | help='set the kernel\'s IP address [default localhost]') |
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88 | 88 | kgroup.add_argument('--xreq', type=int, metavar='PORT', default=0, |
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89 | 89 | help='set the XREQ channel port [default random]') |
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90 | 90 | kgroup.add_argument('--sub', type=int, metavar='PORT', default=0, |
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91 | 91 | help='set the SUB channel port [default random]') |
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92 | 92 | kgroup.add_argument('--rep', type=int, metavar='PORT', default=0, |
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93 | 93 | help='set the REP channel port [default random]') |
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94 | 94 | kgroup.add_argument('--hb', type=int, metavar='PORT', default=0, |
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95 | 95 | help='set the heartbeat port [default: random]') |
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96 | 96 | |
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97 | 97 | egroup = kgroup.add_mutually_exclusive_group() |
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98 | 98 | egroup.add_argument('--pure', action='store_true', help = \ |
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99 | 99 | 'use a pure Python kernel instead of an IPython kernel') |
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100 | 100 | egroup.add_argument('--pylab', type=str, metavar='GUI', nargs='?', |
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101 | 101 | const='auto', help = \ |
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102 | 102 | "Pre-load matplotlib and numpy for interactive use. If GUI is not \ |
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103 | 103 | given, the GUI backend is matplotlib's, otherwise use one of: \ |
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104 | 104 | ['tk', 'gtk', 'qt', 'wx', 'inline'].") |
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105 | 105 | |
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106 | 106 | wgroup = parser.add_argument_group('widget options') |
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107 | 107 | wgroup.add_argument('--paging', type=str, default='inside', |
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108 | 108 | choices = ['inside', 'hsplit', 'vsplit', 'none'], |
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109 | 109 | help='set the paging style [default inside]') |
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110 | 110 | wgroup.add_argument('--rich', action='store_true', |
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111 | 111 | help='enable rich text support') |
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112 | 112 | wgroup.add_argument('--gui-completion', action='store_true', |
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113 | 113 | help='use a GUI widget for tab completion') |
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114 | 114 | |
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115 | 115 | args = parser.parse_args() |
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116 | 116 | |
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117 | 117 | # Don't let Qt or ZMQ swallow KeyboardInterupts. |
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118 | 118 | import signal |
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119 | 119 | signal.signal(signal.SIGINT, signal.SIG_DFL) |
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120 | 120 | |
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121 | 121 | # Create a KernelManager and start a kernel. |
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122 | 122 | kernel_manager = QtKernelManager(xreq_address=(args.ip, args.xreq), |
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123 | 123 | sub_address=(args.ip, args.sub), |
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124 | 124 | rep_address=(args.ip, args.rep), |
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125 | 125 | hb_address=(args.ip, args.hb)) |
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126 | 126 | if args.ip == LOCALHOST and not args.existing: |
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127 | 127 | if args.pure: |
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128 | 128 | kernel_manager.start_kernel(ipython=False) |
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129 | 129 | elif args.pylab: |
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130 | 130 | kernel_manager.start_kernel(pylab=args.pylab) |
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131 | 131 | else: |
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132 | 132 | kernel_manager.start_kernel() |
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133 | 133 | kernel_manager.start_channels() |
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134 | 134 | |
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135 | 135 | # Create the widget. |
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136 | 136 | app = QtGui.QApplication([]) |
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137 | 137 | if args.pure: |
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138 | 138 | kind = 'rich' if args.rich else 'plain' |
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139 | 139 | widget = FrontendWidget(kind=kind, paging=args.paging) |
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140 | 140 | elif args.rich or args.pylab: |
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141 | 141 | widget = RichIPythonWidget(paging=args.paging) |
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142 | 142 | else: |
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143 | 143 | widget = IPythonWidget(paging=args.paging) |
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144 | 144 | widget.gui_completion = args.gui_completion |
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145 | 145 | widget.kernel_manager = kernel_manager |
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146 | 146 | |
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147 | 147 | # Create the main window. |
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148 | 148 | window = MainWindow(widget, args.existing) |
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149 | 149 | window.setWindowTitle('Python' if args.pure else 'IPython') |
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150 | 150 | window.show() |
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151 | 151 | |
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152 | 152 | # Start the application main loop. |
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153 | 153 | app.exec_() |
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154 | 154 | |
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155 | 155 | |
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156 | 156 | if __name__ == '__main__': |
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157 | 157 | main() |
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