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pyqt5 'QWidget' object has no attribute 'setCentralWidget'

作者:互联网

在我刚使用PyQt5的时候,我运行的时候出现以下报错:

pyqt5 'QWidget' object has no attribute 'setCentralWidget'

这种错误我用了一种方法来解决:

在运行的主函数里面,原本是这样的

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    widgets = QtWidgets.QWidget()
    ui = MainWin()
    ui.main_ui.setupUi(widgets)
    widgets.show()
    ui.run_function()
    sys.exit(app.exec_())

然后修改成这样:

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    widgets = QtWidgets.QMainWindow()
    ui = MainWin()
    ui.main_ui.setupUi(widgets)
    widgets.show()
    ui.run_function()
    sys.exit(app.exec_())

除了这种方法,Stack Overflow上还有几种不知道可不可行:
1:

class MainWindow(QtWidgets.QMainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent=parent)
        ui = Ui_MainWindow()
        ui.setupUi(self)
 
 
import sys
 
if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())
class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent=parent)
        self.setupUi(self)
 
 
 
import sys
 
if __name__ == "__main__":
    app = QtWidgets.QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

标签:__,no,attribute,app,object,QtWidgets,sys,ui,MainWindow
来源: https://www.cnblogs.com/sggggr/p/15511814.html