尝试在 PyQT5 中打开文件时出现无效文件错误

Question

我正在尝试制作一个基本的文本编辑器，并且我正在使用 PYQT5 来这样做，但是当我尝试打开或保存文件时出现错误，对于打开我得到：

File "D:\NicKLz\Documents\GitHub\MiscProjects\TextEditor\txtEditor.py", line 81, in open
    with open(self.filename, "r") as file:
TypeError: invalid file: ('D:/NicKLz/Documents/GitHub/MiscProjects/TextEditor/Hello.writer', 'Files (*.*)')

保存后我得到：

File "D:\NicKLz\Documents\GitHub\MiscProjects\TextEditor\txtEditor.py", line 89, in save
    if not self.filename.endswith(".writer"):
AttributeError: 'tuple' object has no attribute 'endswith'

以下是我对这些功能的了解：

def open(self):
    #Get filename and show only .txt files
    self.filename = QtWidgets.QFileDialog.getOpenFileName(self, 'Open File', ".", "Files (*.*)")

    if self.filename:
        with open(self.filename, "r") as file:
            self.text.setText(file.read())

def save(self):
    #Only Open this dialog if there is no filename yet
    if not self.filename:
        self.filename = QtWidgets.QFileDialog.getSaveFileName(self, "Save File")
    #Add the appropriate extension if not currently in place
    if not self.filename.endswith(".writer"):
        self.filename += ".writer"

    #Store Contents and format in html format which QT does a nice job of implementing for us already
    with open(self.filename,"w") as file:
        file.write(self.text.toHtml())

非常感谢任何帮助。

Answer 1

self.filename 是一个元组，所以显然你不能把它当作一个字符串，方法返回了两个元素，你想要第一个所以解压：

self.filename, _ = QtWidgets.QFileDialog.getOpenFileName(self, 'Open File', ".", "Files (*.*)")

或索引：

self.filename = QtWidgets.QFileDialog.getOpenFileName(self, 'Open File', ".", "Files (*.*)")[0]

尝试在 PyQT5 中打开文件时出现无效文件错误

Invalid file error when trying to open file in PyQT5

python

pyqt

python-3.x

qt5

pyqt5