Compatibility: PyPy is highly compatible with existing python code. It supports cffi, cppyy, and can run popular python libraries like twisted, and django. It can also run NumPy, Scikit-learn and …

May 31, 2025 · What is PyPy? Goals and Architecture Overview; Downloading and Installing PyPy; Building PyPy from Source; Translating on Windows; Frequently Asked Questions

May 31, 2025 · What is PyPy?¶ Historically, PyPy has been used to mean two things. The first is the RPython translation toolchain for generating interpreters for dynamic programming …

May 31, 2025 · PyPy is regularly and extensively tested on Linux machines. It works on Mac and Windows: it is tested there, but most of us are running Linux so fixes may depend on 3rd-party …

PyPy is a replacement for CPython. It is built using the RPython language that was co-developed with it. The main reason to use it instead of CPython is speed: it runs generally faster (see …

Visit the more information page for other platforms, information about running PyPy, STM, instructions on building from source and more. Checksums¶ Checksums for the downloads …

May 31, 2025 · Downloading and Installing PyPy¶ Just like CPython, you need a base interpreter environment and then can install extra packages. The choices for installing the base …

May 31, 2025 · PyPy is made of Python source code at two levels: there is on the one hand application-level code that looks like normal Python code, and that implements some …

6 days ago · PyPy v7.3.19: release of python 2.7, 3.10 and 3.11 beta. The PyPy team is proud to release version 7.3.19 of PyPy. This is primarily a bug-fix release fixing JIT-related problems …

Differences between PyPy and CPython¶ This page documents the few differences and incompatibilities between the PyPy Python interpreter and CPython. Some of these differences …