在下面给出的最小示例中，上下文菜单(右键单击gui的白色部分)仅短暂显示，然后消失。如果应用程序是从IPython(0.13.1)控制台启动的，则会出现这种情况。当从shell正常启动时，它可以正常工作。在import sys

from PySide import QtGui, QtCore

from IPython.lib.guisupport import get_app_qt4, start_event_loop_qt4

class ContextTestGui(QtGui.QMainWindow):

def __init__(self):

QtGui.QMainWindow.__init__(self)

self.ui = Ui_ContextTestWindow()

self.ui.setupUi(self)

self.ui.treeView.addAction(self.ui.actionCopy)

self.ui.treeView.addAction(self.ui.actionShow)

class Ui_ContextTestWindow(object):

def setupUi(self, ContextTestWindow):

ContextTestWindow.resize(200, 100)

self.treeView = QtGui.QTreeView(ContextTestWindow)

self.treeView.setContextMenuPolicy(QtCore.Qt.ActionsContextMenu)

self.treeView.setMinimumSize(QtCore.QSize(100, 100))

self.actionCopy = QtGui.QAction("Copy",ContextTestWindow)

self.actionShow = QtGui.QAction("Show",ContextTestWindow)

def create_window(window_class,**kwargs):

app = get_app_qt4(sys.argv)

window = window_class()

window.show()

start_event_loop_qt4(app)

return window

if __name__ == '__main__':

simgui = create_window(ContextTestGui)