QTabWidget insert a QSplitter can't switch when the splitter disabled

I insert a QFrame and QTabWidget in the QSplitter. And I wanna forbidden to adjust the size of elements in QSplitter. So I call method of 'setDisabled' in QSplitter. It's useful for disabling resizing the elements. But I also can't switch tab of QTabWidget. Who can give me some suggestions? Thanks very much......

import sys
from PyQt5.QtWidgets import QApplication, QWidget, QSplitter, QHBoxLayout, QFrame, QTabWidget
from PyQt5.QtCore import Qt
class Example1(QWidget):
    def __init__(self):
        super().__init__()
        self.setGeometry(0, 0, 600, 600)
        self.setWindowTitle("Demo")
        self.layout = QHBoxLayout()

        top_frame = QFrame()
        top_frame.setFrameShape(QFrame.StyledPanel)

        bottom_frame = QTabWidget(self)
        tab1 = QWidget()
        tab2 = QWidget()
        bottom_frame.setTabText(0, "Generic")
        bottom_frame.setTabText(1, "Other")
        bottom_frame.addTab(tab1, "Tab 1")
        bottom_frame.addTab(tab2, "Tab 2")

        splitter = QSplitter()
        splitter.setOrientation(Qt.Vertical)
        splitter.addWidget(top_frame)
        splitter.addWidget(bottom_frame)
        splitter.setSizes([300, 300])
        **splitter.setDisabled(True)**

        self.layout.addWidget(splitter)
        self.setLayout(self.layout)
        self.show()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example1()
    sys.exit(app.exec_())

the running result of the program

When you disable a widget you also disable its children, so disabling the QSplitter also disables the QTabWidget.

A possible solution is enable or disable the handles:

import sys
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import (
    QApplication,
    QFrame,
    QHBoxLayout,
    QSplitter,
    QSplitterHandle,
    QTabWidget,
    QWidget,
)


class CustomSplitter(QSplitter):
    @property
    def enabled(self):
        if not hasattr(self, "_enabled"):
            self._enabled = True
        return self._enabled

    @enabled.setter
    def enabled(self, d):
        self._enabled = d
        for i in range(self.count()):
            self.handle(i).setEnabled(self.enabled)

    def createHandle(self):
        handle = super().createHandle()
        handle.setEnabled(self.enabled)
        return handle


class Example1(QWidget):
    def __init__(self):
        super().__init__()
        self.setGeometry(0, 0, 600, 600)
        self.setWindowTitle("Demo")
        self.layout = QHBoxLayout()

        top_frame = QFrame()
        top_frame.setFrameShape(QFrame.StyledPanel)

        bottom_frame = QTabWidget(self)
        tab1 = QWidget()
        tab2 = QWidget()
        bottom_frame.setTabText(0, "Generic")
        bottom_frame.setTabText(1, "Other")
        bottom_frame.addTab(tab1, "Tab 1")
        bottom_frame.addTab(tab2, "Tab 2")

        splitter = CustomSplitter()
        splitter.setOrientation(Qt.Vertical)
        splitter.addWidget(top_frame)
        splitter.addWidget(bottom_frame)
        splitter.setSizes([300, 300])

        splitter.enabled = False

        self.layout.addWidget(splitter)
        self.setLayout(self.layout)
        self.show()


if __name__ == "__main__":
    app = QApplication(sys.argv)
    ex = Example1()
    sys.exit(app.exec_())