PyQt5 QFileDialog: 获取文件夹路径错误

PyQt5 QFileDialog: 获取文件夹路径错误

错误的代码:

def get_file_path(self):
        file_name = QtWidgets.QFileDialog.getExistingDirectory(self, "Select File Directory to Save File", "")
        print(file_name)

引起的错误:

file_name = QtWidgets.QFileDialog.getExistingDirectory(self, "Select File Directory to Save File", "") 
 
TypeError: getExistingDirectory(parent: QWidget = None, caption: str = '', directory: str = '', options: Union[QFileDialog.Options, QFileDialog.Option] = QFileDialog.ShowDirsOnly): argument 1 has unexpected type 'Ui_Filepath'  

原因:
getExistingDirectory()中的第一个形参输入self,而这里的self指的是我所创建的类Ui_Filepath,并不是这个方法中需要的QWidget类型的对象。

解决方法:
第一个形参输入为None

def get_file_path(self, Filepath):
        file_name = QtWidgets.QFileDialog.getExistingDirectory(None, "Select File Directory to Save File", "")
        print(file_name)
        self.file_name = file_name

这里的self.file_name就是所获得的所选文件路径了!!!

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