PyQt getOpenFileName默认目录

Question

我正在使用Qt.Gui.QFileDialog.getOpenFileName方法打开一个文件。如果我将默认文件目录设置为"/Users/me/Documents/data/2013/today/"，对话框将打开到"/Users/me/Documents/data/2013/"，并选中"today"文件夹。如何获得要在窗口中打开的正确默认文件夹？

fname = QtGui.QFileDialog.getOpenFileName(self, 'Open file', "/Users/me/Documents/data/2012/20121102/images/",'*.npy')

在/Users/me/Documents/data/2012/20121102中打开一个对话框。我希望在/Users/me/Documents/data/2012/20121102/images/中打开窗口

Answer 1

最可能的原因是在您请求打开该文件时该文件并不存在。要打开文件夹，请使用QtGui.QFileDialog.getExistingDirectory

#!/usr/bin/env python
#-*- coding:utf-8 -*-

from PyQt4 import QtGui, QtCore

class MyWindow(QtGui.QWidget):
    def __init__(self, parent=None):
        super(MyWindow, self).__init__(parent)

        self.pushButtonOpen = QtGui.QPushButton(self)
        self.pushButtonOpen.setText("Open Folder")
        self.pushButtonOpen.clicked.connect(self.on_pushButtonOpen_clicked)

        self.layoutHorizontal = QtGui.QHBoxLayout(self)
        self.layoutHorizontal.addWidget(self.pushButtonOpen)

    @QtCore.pyqtSlot()
    def on_pushButtonOpen_clicked(self):
        folderName = QtGui.QFileDialog.getExistingDirectory(
            self, "Open Directory",
            "/path/to/folder",
            QtGui.QFileDialog.ShowDirsOnly | QtGui.QFileDialog.DontResolveSymlinks,
        )

if __name__ == "__main__":
    import sys

    app = QtGui.QApplication(sys.argv)
    app.setApplicationName('MyWindow')

    main = MyWindow()
    main.show()

    sys.exit(app.exec_())

Answer 2

获取某人的信息(即使8年过去了)

您可以将directory参数传递给PyQt5中默认文件夹的getOpenFileName。