GitHub repository: krbarker/PySimpleGUI
Primary language: Python
Description: Super-simple to create custom layout GUI's.  Python 2.7 & 3 Support. 80 Demo programs & Cookbook for rapid start.  Examples for Machine Learning(GUI, OpenCV Integration,  Chatterbot), Floating Desktop Widgets, Matplotlib + Pyplot integration, add GUI to command line scripts, PDF & Image Viewer. Great for beginners as well as advanced GUIs.