Based on Python Programming Language web.py is a framework that makes web applications development easy.

web.py was originally published while Aaron Swartz worked at reddit.com, where the site used it as it grew to become one of the top 1000 sites according to Alexa and served millions of daily page views. "It's the anti-framework framework. web.py doesn't get in your way," explained founder Steve Huffman. (The site was rewritten using other tools after being acquired by Condé Nast.)