An organization for backporting Python's new features
Python keeps evolving — and not everyone can upgrade. We bridge that gap, reimplementing new features so they run smoothly on older interpreters.
Reimplement newly introduced standard library modules, classes and functions so they can be used on older CPython versions without changes.
We aim for drop-in compatibility: same signatures, same semantics, same edge cases — so your code works identically across versions.
From pure-Python helpers to C extensions backed by CPython private APIs, we choose the right tool to deliver real performance.
Open discussions, transparent roadmaps, public issue triage — every contribution shapes the direction of the organization.
Libraries that reimplement or backport features of modern CPython.
Discussion hubs and meta-repositories.
Whether you're here to ship code, file an issue, suggest a PEP, or just lurk — you're welcome. Every contribution helps bring tomorrow's Python to yesterday's interpreters.