Welcome to PyPy’s documentation!

Welcome to the documentation for PyPy, a fast, compliant alternative implementation of the Python language.

All of the documentation and source code is available under the MIT license, unless otherwise specified. Consult LICENSE.


#pypy on irc.freenode.net

Many of the core developers are hanging out here. You are welcome to join and ask questions (if they are not already answered in the FAQ). You can find logs of the channel here.

Development mailing list

Development and conceptual discussions

Commit mailing list

Updates to code and documentation

Development bug/feature tracker

Filing bugs and feature requests

Meeting PyPy developers

The PyPy developers are organizing sprints and presenting results at conferences all year round. They will be happy to meet in person with anyone interested in the project. Watch out for sprint announcements on the development mailing list.

Indices and tables