PyPy alternatives and similar packages

Based on the "High Performance" category.
Alternatively, view PyPy alternatives based on common mentions on social networks and blogs.

Cython

8.8 9.7 L2 PyPy VS Cython

The most widely used Python to C compiler
Pyston

6.0 9.6 L2 PyPy VS Pyston

A faster and highly-compatible implementation of the Python programming language.

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PeachPy

5.8 0.8 L2 PyPy VS PeachPy

x86-64 assembler embedded in Python
Pyjion

5.8 4.0 L1 PyPy VS Pyjion

A JIT for Python based upon CoreCLR
Stackless Python

0.5 - PyPy VS Stackless Python

An enhanced version of the Python.