What are the most interesting python related projects?

Question

There are many neat projects that extend the usefulness of python inside and outside the main language and standard library. Some of them come to mind:

• pypy
• stackless
• twisted
• empty swallow
• web framework
• numpy
• other interesting ideas

What are some of the projects that excite you, turn this list on and off?

Answer 1

My favorites:

• Fully featured web frameworks like Django simplify basic web development.
• PyQt - binding the full power of the Qt framework to Python
• Pygame - easy and fun game development
• matplotlib - the scientific horizons of publishing quality for any purpose

Answer 2

Sage : "Sage is a free open source software system licensed under the GPL. It combines the power of many existing open source software into a common Python-based interface."

Answer 3

Pajamas (PyJS) is a unified structure of the web interface and GUI with all components running on native python (no more annoying JS).

Answer 4

Reportlab - Programmatically create PDF files.

Secondly, all Eli offers, all really great things, especially PyQt and PySide .

Answer 5

I like zope and plone very much.

Answer 6

PLY - Python Lex-Yacc

It (ab) uses Python docs so that you can embed BNF grammar files directly in your code.