Python  (1051)
PyPy  (2)

PyPy

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PyPy is a JIT implementation of the Python language.

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Adventures in compatibility: emulating CPython's C API in PyPy
The joy of PyPy JIT: abstractions for free


PyPy is a fastcompliant alternative implementation of the Python language (2.7.13 and 3.5.3). It has several advantages and distinct features:

  • Speed: thanks to its Just-in-Time compiler, Python programs often run faster on PyPy. (What is a JIT compiler?)

    “If you want your code to run faster, you should probably just use PyPy.” — Guido van Rossum (creator of Python)

  • Memory usage: memory-hungry Python programs (several hundreds of MBs or more) might end up taking less spacethan they do in CPython.

  • Compatibility: PyPy is highly compatible with existing python code. It supports cffi and can run popular python libraries like twisted and django.

  • Stackless: PyPy comes by default with support for stackless mode, providing micro-threads for massive concurrency.

  • As well as other features.



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