Python 名称错误:全局名称';QContextMenuEvent';没有定义
我想添加一个右键单击菜单Python 名称错误:全局名称';QContextMenuEvent';没有定义,python,menu,pyqt5,Python,Menu,Pyqt5,我想添加一个右键单击菜单 def contextMenuEvent(self,event): global posX global posY global selections,scan_widget if event.reason() == QContextMenuEvent.Mouse: menu = QMenu(self) clear = menu.addAction('Clear') for i in s
def contextMenuEvent(self,event):
global posX
global posY
global selections,scan_widget
if event.reason() == QContextMenuEvent.Mouse:
menu = QMenu(self)
clear = menu.addAction('Clear')
for i in selections:
self.buttonLabels.append(menu.addAction(i))
deleteBox = menu.addAction('Delete Box')
changeId = menu.addAction('Change Id')
cancel = menu.addAction('Cancel')
action = menu.exec_(self.mapToGlobal(event.pos()))
for i,key in enumerate(self.buttonLabels):
if action == key:
self.annotClass = selections[i]
self.annotEnabled = True
if action == deleteBox:
self.deleteEnabled = True
elif action == changeId:
#Call the textbox
self.newBoxId = textBox()
self.newBoxId.setGeometry(QRect(500, 100, 300, 100))
self.newBoxId.show()
elif action == cancel:
pass
elif action == clear:
self.annotClass = 'Clear'
self.annotEnabled = True
self.posX_annot = event.pos().x()
self.posY_annot = event.pos().y()
posX = event.pos().x()
posY = event.pos().y()
self.repaint()
self.buttonLabels = []
self.annotEnabled = False
但请告诉我这个错误:
NameError:未定义全局名称“QContextMenuEvent”
然后,我添加了QContextMenuEvent作为导入:
from PyQt5.QtWidgets import (QApplication, QComboBox, QHBoxLayout, QPushButton,QSizePolicy, QVBoxLayout, QWidget,QLineEdit, QInputDialog, QMenu,QContextMenuEvent)
但是,
ImportError:无法导入名称QContextMenuEvent
我做错了什么?从我搜索的内容来看,
QContextMenuEvent
类驻留在QtGui
模块中,可以从PyQt5
from PyQt5.QtGui import QContextMenuEvent
我在谷歌上搜索到,
QContextMenuEvent
类驻留在QtGui
模块中,可以从PyQt5
from PyQt5.QtGui import QContextMenuEvent
我换了
if event.reason()==QContextMenuEvent.Mouse:
与
如果event.button==Qt.RightButton:
我被替换
if event.reason()==QContextMenuEvent.Mouse:
与
如果event.button==Qt.RightButton:
您能在终端中执行“pip冻结”吗?看起来您缺少程序包当前未安装程序“pip”。您可以通过键入:sudo apt install python来安装它。您是如何安装PyQt5的?这就是该库所需的python模块。您可以在终端中执行“pip冻结”吗?看起来您缺少程序包当前未安装程序“pip”。您可以通过键入:sudo apt install python来安装它。您是如何安装PyQt5的?这就是LibraryImporter所需的python模块错误:没有安装并检查名为qtgui的模块PyQt5
。模块PyQt5
具有QtGui
模块。请再次检查。导入错误:未安装并检查名为QtGuiI的模块。模块PyQt5
具有QtGui
模块。请再查一下。