PySide6 读取文件路径包含中文在 Qfilesystemmodel 中失败

Question

我用PySide6定义了一个文件系统管理器，主要代码是：

    self.model = FileSystemModelImpl()
    self.root_parent = self.model.setRootPath(img_dir)
  
    self.sort_proxy_model =MySortFilterProxyModel()
    self.sort_proxy_model.setSourceModel(self.model)
    source_index = self.model.index(img_dir)
    proxy_index = self.sort_proxy_model.mapFromSource(source_index)

    self.tree_view = QTreeViewImpl()
    self.tree_view.setSortingEnabled(True)
    self.tree_view.setModel(self.sort_proxy_model)
    self.tree_view.setRootIndex(proxy_index)
    self.tree_view.selectionModel().selectionChanged.connect(self.tree_response)

当我选择一个文件时，它会调用tree_response函数，其中的一部分

    def tree_response(self, selected: QtCore.QItemSelection, deselected: QtCore.QItemSelection):
        self.file_path = self.get_current_path()

其中包含 get_current_path() 函数：

def get_current_path(self):
    index = self.tree_view.currentIndex()
    #file_path = self.model.filePath(self.sort_proxy_model.mapToSource(index))
    file_path = self.model.fileInfo(self.sort_proxy_model.mapToSource(index)).absoluteFilePath()

    return file_path

文件路径包含中文。当我在 Mac 中运行这段代码时，一切正常。我可以使用 file_path 做一些后处理，比如通过 opencv 读取图像。 但是，当我在 Window 中运行它时，它失败了。 file_path 错误如：

 C:/panda_eye/panda_eye_val/img/黑人@160-黑-女-2248_left_crop.jpg

我在 python 3.10 中都使用 python 3.10。我使用 sys.getfilesystemencoding 来获取系统编码类型，它们都是 utf-8。

=====================更新问题========================== ====

这是最小的例子 在 main.py 中，代码是：

from argparse import ArgumentParser, RawTextHelpFormatter
import sys
import os
sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '.')))

from PySide6.QtWidgets import (QApplication)
from simple_imageviewer import ImageViewer
from PySide6.QtWidgets import QApplication

import multiprocessing
if __name__ == '__main__':
    multiprocessing.freeze_support()
    arg_parser = ArgumentParser(description="Image Viewer",
                                formatter_class=RawTextHelpFormatter)
    arg_parser.add_argument('file', type=str, nargs='?', help='Image file')
    args = arg_parser.parse_args()

    app = QApplication(sys.argv)
    image_viewer = ImageViewer()

    if args.file and not image_viewer.load_file(args.file):
        sys.exit(-1)

    image_viewer.show()
    sys.exit(app.exec())

simple_imageviewer.py 是

# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from PySide6.QtWidgets import (QMainWindow, QGridLayout, QFileSystemModel, QTableView, QWidget)
from PySide6.QtGui import QGuiApplication
import PySide6.QtCore as QtCore
from PySide6.QtCore import  Slot, QSortFilterProxyModel

import os
import cv2



img_dir = "C:\\Users\\Moon\\OneDrive\\文档\\工作\\code\\python\\test\\"
    
class ImageViewer(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)

        # 自适应屏幕大小
        primary_size = QGuiApplication.primaryScreen().availableSize()
        screen_height = primary_size.height()
        screen_width = primary_size.width()
        self.move(screen_width * 0.1, screen_height * 0.1)

        self.tree_view_layout = QGridLayout()
        self.grid_layout = QGridLayout()
    
        self.model = QFileSystemModel()
        self.root_parent = self.model.setRootPath(img_dir)
      
        self.sort_proxy_model =QSortFilterProxyModel()
        self.sort_proxy_model.setSourceModel(self.model)
        source_index = self.model.index(img_dir)
        proxy_index = self.sort_proxy_model.mapFromSource(source_index)


        self.tree_view = QTableView()
        header = self.tree_view.verticalHeader()
        header.setSectionHidden(0, True)

        self.tree_view.setSortingEnabled(True)
        self.tree_view.setModel(self.sort_proxy_model)
        self.tree_view.setRootIndex(proxy_index)
        
        #self.tree_view.setRootIndex(self.model.index(img_dir))
        self.tree_view.selectionModel().selectionChanged.connect(self.tree_response)
        self.tree_view_layout.addWidget(self.tree_view, 0, 0)
        self.grid_layout.addLayout(self.tree_view_layout, 0, 0, 0, 1)
      
        main_widget = QWidget()
        main_widget.setLayout(self.grid_layout)
        self.setCentralWidget(main_widget)


    def get_current_path(self):
        index = self.tree_view.currentIndex()
        source_index = self.sort_proxy_model.mapToSource(index)
        file_info = QtCore.QFileInfo(self.model.filePath(source_index))
        file_path = file_info.absoluteFilePath()
        return file_path

        
    @Slot()
    def tree_response(self, selected: QtCore.QItemSelection, deselected: QtCore.QItemSelection):
        file_path = self.get_current_path()
        img = cv2.imread(file_path)
        print(img.shape)
        print(file_path)

和“C:\Users\Moon\OneDrive\文档\工”的文件结构。