Cython - Programming language

Cython is an open source programming language created in 2007.

#164on PLDB

17Years Old

698Repos

Cython is a superset of the Python programming language, designed to give C-like performance with code which is mostly written in Python. Cython is a compiled language that generates CPython extension modules. These extension modules can then be loaded and used by regular Python code using the import statement. Read more on Wikipedia...

Tags: programming language
There are at least 698 Cython repos on GitHub
Cython is a superset of Python
Early development of Cython happened in https://github.com/sagemath
The Google BigQuery Public Dataset GitHub snapshot shows 528 users using Cython in 580 repos on GitHub
Pygments supports syntax highlighting for Cython
GitHub supports syntax highlighting for Cython
See also: (9 related languages) Python, C, Linux, Pyrex, Sage, XML, SciPy, Pandas, Scikit-learn
13 PLDB concepts link to Cython: Apache Arrow, atomspace, edgedb, Fardlang, HHVM, Horse64, Impala, Pandas, Scikit-learn, SciPy, Sqlalchemy, TensorFlow, tornado

Example from Wikipedia:

In [1]: %load_ext Cython

In [2]: %%cython
   ...: def f(n):
   ...:     a = 0
   ...:     for i in range(n):
   ...:         a += i
   ...:     return a
   ...:
   ...: cpdef g(int n):
   ...:     cdef int a = 0, i
   ...:     for i in range(n):
   ...:         a += i
   ...:     return a
   ...:

In [3]: %timeit f(1000000)
42.7 ms ± 783 µs per loop (mean ± std. dev. of 7 runs, 10 loops each)

In [4]: %timeit g(1000000)
74 µs ± 16.6 ns per loop (mean ± std. dev. of 7 runs, 10000 loops each)

Language features

Feature	Supported	Example	Token
Integers	✓
Floats	✓
Hexadecimals	✓
Octals	✓