在下面給出的最小示例中，上下文菜單(右鍵單擊gui的白色部分)僅短暫顯示，然后消失。如果應(yīng)用程序是從IPython(0.13.1)控制臺(tái)啟動(dòng)的，則會(huì)出現(xiàn)這種情況。當(dāng)從shell正常啟動(dòng)時(shí)，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)

總結(jié)

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