Cython Python

Use Cython to speed up python code

Posted by K.WANG on November 14, 2017

Cython is able to speed up python code.

It can automatically convert python function to C language, and compile to a lib which could be imported directly by python.

Let’s knock the door!

1 Installation

conda install cython

2 Hello World

  • write one-line python code to “helloworld.pyx”:

    print “Hello World”

  • create a python code to compile this pyx file. Generally, we named it as “setup.py”, which is similar to setuptools:

      from distutils.core import setup
  from Cython.Build import cythonize
	
  setup(
      ext_modules = cythonize("helloworld.pyx")
  )

  • use terminal to compile:

    python setup.py build_ext –inplace

  • We can include this function like python lib:

      import helloworld

    It will print out “Hello World”.

3 Details

See: http://docs.cython.org/en/latest/