当我右键单击QTableWidget时,我要显示“复制并退出”菜单。当我运行以下代码时,出现“ TypeError:customContextMenuRequested(QPoint)和__context_menu()之间的connect()失败”错误。此错误的原因可能是什么?我该如何解决?
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import Qt, QPoint, pyqtSlot
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(800, 600)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.name_table = QtWidgets.QTableWidget(self.centralwidget)
self.name_table.setGeometry(QtCore.QRect(190, 180, 256, 192))
self.name_table.setObjectName("name_table")
self.name_table.setColumnCount(1)
self.name_table.setRowCount(1)
item = QtWidgets.QTableWidgetItem()
self.name_table.setVerticalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.name_table.setHorizontalHeaderItem(0, item)
item = QtWidgets.QTableWidgetItem()
self.name_table.setItem(0, 0, item)
self.name_table.setContextMenuPolicy(Qt.CustomContextMenu)
self.name_table.customContextMenuRequested.connect(self.__context_menu)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 22))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
item = self.name_table.verticalHeaderItem(0)
item.setText(_translate("MainWindow", "First"))
item = self.name_table.horizontalHeaderItem(0)
item.setText(_translate("MainWindow", "Name"))
__sortingEnabled = self.name_table.isSortingEnabled()
self.name_table.setSortingEnabled(False)
item = self.name_table.item(0, 0)
item.setText(_translate("MainWindow", "Book"))
self.name_table.setSortingEnabled(__sortingEnabled)
# @pyqtSlot('QPoint')
@pyqtSlot(QPoint)
def __context_menu(self, position):
menu = QMenu()
copy_action = menu.addAction("Copy")
quit_action = menu.addAction("Quit")
action = menu.exec_(self.table.mapToGlobal(position))
if action == quit_action:
qApp.quit()
elif action == copy_action:
print("copy...")
if __name__ == "__main__":
import sys
app = QtWidgets.QApplication(sys.argv)
MainWindow = QtWidgets.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())