1.0.0.b4

Added support for baseinstance to QtCompat.loadUi().

QtCompat.loadUi(uifile="my.ui", baseinstance=QtWidgets.QWidget)

This feature mimics the functionality (warts and all) of PyQt5.uic.loadUi found here.

• Documentation
• See #196 for more details.

Thanks to @dgovil for this feature!