使用python和pyqt gui从另一个类读取字符串或将字符串发送到qtextbrowser的正确方法是什么？

from PyQt5.QtCore import QObject, pyqtSignal

class DataClass(QObject):
    stringUpdated = pyqtSignal(str)

    def __init__(self):
        super().__init__()
        self.string_data = ""

    def updateString(self, new_string):
        self.string_data = new_string
        self.stringUpdated.emit(self.string_data)

from PyQt5.QtWidgets import QApplication, QMainWindow, QTextBrowser
from PyQt5.QtCore import Qt

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.data = DataClass()
        self.data.stringUpdated.connect(self.updateTextBrowser)

        self.text_browser = QTextBrowser(self)
        self.setCentralWidget(self.text_browser)

    def updateTextBrowser(self, new_string):
        self.text_browser.setText(new_string)

class AnotherClass:
    def __init__(self, data):
        self.data = data

    def updateStringData(self, new_string):
        self.data.updateString(new_string)