PYTHON setup.py build_ext --inplace

######## setup.py ###########

from distutils.core import setup

from Cython.Build import cythonize

import Cython.Compiler.Scanning

Cython.Compiler.Scanning.trace_scanner = 1

setup(

    ext_modules = cythonize("*.pyx")

)

import simple

assert simple.test() == 123

######## simple.pyx ###########

def test():

    return 123