QProgressDialog.setCancelButton() Is documented to accept 0, but does not.

TypeError: 'PySide2.QtWidgets.QProgressDialog.setCancelButton' called with wrong argument types:
PySide2.QtWidgets.QProgressDialog.setCancelButton(int)
Supported signatures:
PySide2.QtWidgets.QProgressDialog.setCancelButton(PySide2.QtWidgets.QPushButton)

Workaround:

Using None as Argument appears to give the expected result.

Either Update the Documentation to say None instead of 0, or allow 0.