upstream/ipython Files · docs/examples/lib/gui-qt.py

cleanup connection files on notebook shutdown...

cleanup connection files on notebook shutdown Kernels would not linger, but the KernelManagers are not garbage-collected on shutdown. This means that connection files for kernels still running at notebook shutdown would not be removed. Also disable the unnecessary (and actively unhelpful) SIGINT handler inherited from the original copy/paste from the qt app.

Fernando Perez - - Load All Authors

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             gui-qt.py
        
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      #!/usr/bin/env python

      """Simple Qt4 example to manually test event loop integration.

      This is meant to run tests manually in ipython as:

      In [5]: %gui qt

      In [6]: %run gui-qt.py

      Ref: Modified from http://zetcode.com/tutorials/pyqt4/firstprograms/

      """

      import sys

      from PyQt4 import QtGui, QtCore

      class SimpleWindow(QtGui.QWidget):

          def __init__(self, parent=None):

              QtGui.QWidget.__init__(self, parent)

              self.setGeometry(300, 300, 200, 80)

              self.setWindowTitle('Hello World')

              quit = QtGui.QPushButton('Close', self)

              quit.setGeometry(10, 10, 60, 35)

              self.connect(quit, QtCore.SIGNAL('clicked()'),

                           self, QtCore.SLOT('close()'))

      if __name__ == '__main__':

          app = QtCore.QCoreApplication.instance()

          if app is None:

              app = QtGui.QApplication([])

          sw = SimpleWindow()

          sw.show()

          try:

              from IPython.lib.guisupport import start_event_loop_qt4

              start_event_loop_qt4(app)

          except ImportError:

              app.exec_()

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				#!/usr/bin/env python
				"""Simple Qt4 example to manually test event loop integration.

				This is meant to run tests manually in ipython as:

				In [5]: %gui qt

				In [6]: %run gui-qt.py

				Ref: Modified from http://zetcode.com/tutorials/pyqt4/firstprograms/
				"""

				import sys
				from PyQt4 import QtGui, QtCore

				class SimpleWindow(QtGui.QWidget):
				def __init__(self, parent=None):
				QtGui.QWidget.__init__(self, parent)

				self.setGeometry(300, 300, 200, 80)
				self.setWindowTitle('Hello World')

				quit = QtGui.QPushButton('Close', self)
				quit.setGeometry(10, 10, 60, 35)

				self.connect(quit, QtCore.SIGNAL('clicked()'),
				self, QtCore.SLOT('close()'))

				if __name__ == '__main__':
				app = QtCore.QCoreApplication.instance()
				if app is None:
				app = QtGui.QApplication([])

				sw = SimpleWindow()
				sw.show()

				try:
				from IPython.lib.guisupport import start_event_loop_qt4
				start_event_loop_qt4(app)
				except ImportError:
				app.exec_()