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

Lots of work on exception handling, including tests for traceback printing....

Lots of work on exception handling, including tests for traceback printing. We finally have some tests for various exception mode printing, via doctests that exercise all three modes! Also changed handling of sys.exit(X) to only print the summary message, as SystemExit is most often a 'handled' exception. It can still be 100% silenced via '%run -e', but now it's much less intrusive. Added a new %tb magic to print the last available traceback with the current xmode. One can then re-print the last traceback with more detail if desired, without having to cause it again.

Brian Granger - - Load All Authors

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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 import appstart_qt4; appstart_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 import appstart_qt4; appstart_qt4(app)
				except ImportError:
				app.exec_()