QCodeEditor cannot be placed under self.centralwidget in PYQT5

[shahzaibk23]

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Above ss contains the code for what I'm trying to do, I want to fit QCodeEditor in place of an QTextEdit, which is placed under self.centralwidget, but everytime I run it, QCodeEditor opens in a seperate window

I want to place it inside my window (within the self.centralwidget), Any help in making it possible will be appreciated !!