所以我正在尝试使用 PyQt5 制作一个应用程序。试图给按钮一些功能，抛出错误

Question

def openFileNameDialog(self):
        options = QFileDialog.Options()
        options |= QFileDialog.DontUseNativeDialog
        fileName, _ = QFileDialog.getOpenFileName(self,"QFileDialog.getOpenFileName()", "","All Files (*);;Python Files (*.py)", options=options)
        if fileName:
            print(fileName)

对于这段代码，这是我的输出，

fileName, _ = QFileDialog.getOpenFileName(self,"QFileDialog.getOpenFileName()", "","All Files ();;Python Files (.py)", options=options) TypeError: getOpenFileName(parent: QWidget = None, caption: str = '', directory: str = '', filter: str = '', initialFilter: str = '', options: Union[QFileDialog.Options, QFileDialog.Option] = 0): 参数 1 具有意外类型 'Ui_MainWindow'

我该如何解决这个问题？

(Post 编辑) : 这是我的 GUI 代码：

def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(443, 427)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(350, 100, 75, 23))
        self.pushButton.setObjectName("pushButton")
        **self.pushButton.clicked.connect(self.openFileNameDialog)**
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QtCore.QRect(40, 100, 281, 21))
        self.lineEdit.setObjectName("lineEdit")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 443, 21))
        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"))
        self.pushButton.setText(_translate("MainWindow", "Browse"))

当我运行 python 脚本时抛出错误。

Answer 1

感谢您提供 GUI 代码。我相信这个错误很可能是由继承并发症引起的。我不确定为什么要将单独的 MainWindow 对象传递给各种函数。相反，尝试从 QMainWindow() 继承并将所有 UI 元素分配给 self.

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *

class MainWindow(QMainWindow):

    def __init__(self):
        super().__init__()
        self.setObjectName("MainWindow")
        self.resize(443, 427)
        self.centralwidget = QWidget(self)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QRect(350, 100, 75, 23))
        self.pushButton.setObjectName("pushButton")
        self.pushButton.clicked.connect(self.openFileNameDialog)
        self.lineEdit = QLineEdit(self.centralwidget)
        self.lineEdit.setGeometry(QRect(40, 100, 281, 21))
        self.lineEdit.setObjectName("lineEdit")
        self.setCentralWidget(self.centralwidget)
        self.menubar = QMenuBar(self)
        self.menubar.setGeometry(QRect(0, 0, 443, 21))
        self.menubar.setObjectName("menubar")
        self.setMenuBar(self.menubar)
        self.statusbar = QStatusBar(self)
        self.statusbar.setObjectName("statusbar")
        self.setStatusBar(self.statusbar)

        self.retranslateUi()
        QMetaObject.connectSlotsByName(self)

    def retranslateUi(self):
        _translate = QCoreApplication.translate
        self.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "Browse"))

    def openFileNameDialog(self):
        options = QFileDialog.Options()
        options |= QFileDialog.DontUseNativeDialog
        fileName, _ = QFileDialog.getOpenFileName(self,"QFileDialog.getOpenFileName()", "","All Files (*);;Python Files (*.py)", options=options)
        if fileName:
            print(fileName)


if __name__ == '__main__':
    app = QApplication(sys.argv)
    MW = MainWindow()
    MW.show()
    sys.exit(app.exec_())

所以我正在尝试使用 PyQt5 制作一个应用程序。试图给按钮一些功能，抛出错误

So I'm trying to make an app using PyQt5. Tried to give some functionality to a button, throws an error

file

pyqt

file-browser

python-3.x