PyQt - Riverbank | Software | PyQt | What is PyQt?
Flutter - Build beautiful native apps in record time 🚀
Tkinter - Tkinter is a Python wrapper for Tcl/Tk that offers classes to create various graphical user interfaces.
Quasar Framework - SPA front-end on steroids.
MD Python Designer - A drag and drop GUI Designer that uses a combination of Tkinter and its own code.
wxWidgets - wxWidgets: Cross-Platform GUI Library