Decimal seperator: QtGui.QDoubleValidator

RE Using “QDoubleValidator(double bottom , double top , int decimals , QObject * parent = nullptr)”

Source code: self.InputLineEdit.setValidator(QtGui.QDoubleValidator(0.1,99.9.0,2))

I get a comma allowed for the decimal separator where I need a point in the QLineEdit widget. Any advice how to force a point decimal separator?