面临pyqt6问题。尝试用它创建一个基本的记事本

这是我的view.py文件的代码，我现在正面临问题。

from PyQt6.QtWidgets import QMainWindow, QTextEdit, QFileDialog, QApplication, QScrollArea, QPlainTextEdit
from PyQt6.QtGui import QTextCursor, QAction, QKeySequence


class TextView:
    def __init__(self, parent=None):
        self.editor = QPlainTextEdit()
        self.window = QMainWindow()
        self.text_edit = QTextEdit()
        self.text_edit.textChanged.connect(self.text_changed)
        self.editor.setLineWrapMode(self.editor.WidgetWidth)
        self.window.setCentralWidget(self.text_edit)

        self.exit_action = QAction("Exit", self.window)
        self.exit_action.setShortcut(QKeySequence.Quit)
        self.exit_action.triggered.connect(self.window.close)
        self.window.addAction(self.exit_action)

        self.text_changed = False

    def text_changed(self):
        self.textChanged = True

    def load_text(self, file_path):
        with open(file_path, 'rt') as file:
            text = file.read()
            self.text_edit.setPlainText(text)

    def save_text(self, file_path):
        with open(file_path, 'wt') as file:
            text = self.text_edit.toPlainText()
            file.write(text)

我的设备是m1 macbook air，IDE是pycharm

我当前面临的错误是AttributeError: 'QPlainTextEdit' object has no attribute 'WidgetWidth'

尽快需要帮助

我试图查看文档，但我发现QPlainTextEdit确实具有该属性，但对我来说，它不起作用。