wxPython - wxPython is a GUI toolkit for the Python programming language.
QT for Python - Design GUI with Python: Python Bindings for Qt
PyQt - Riverbank | Software | PyQt | What is PyQt?
Pyforms - Pyforms is a Python 3 framework to develop applications capable of executing in 3 diferent environments, Desktop GUI, Terminal and Web.
PySimpleGUI - A simple to use GUI that can create custom GUIs
Tkinter - Tkinter is a Python wrapper for Tcl/Tk that offers classes to create various graphical user interfaces.