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pythoncythoncythonize
M.Atiq
M.Atiq

Reputation: 1

I am a beginner in python and I have just got familiar with cython as well. I am using python3.7 on Windows 64-bit

1- I build a file test_cy.pyx

def test(x)
    y=0
    for i in range(x):
        y+=1
    return y

from Cython.Build import cythonize

setup(ext_modules=cythonize("test_cy.pyx"),)

I want to convert python to cyth but it shows an error 

'test_cy.pyx' doesn't match any files

Could you please tell me what should I do now? Where should I save these two files?

Upvotes: 0

Views: 372

Answers (1)

PydPiper
PydPiper

Reputation: 498

There are 4 steps to converting a python script to Cython:

1) write the script in python and create bridges to statically type C (ie. declare your variables like so:

x = 0 # python version
cdef int x = 0 # cython declare

You don't have to but this is one way to speed up a python script with cython. Then save your file with .pyx extension (in your ex test_cy.pyx).

2) write a setup file (ex: mysetup.py) that has the following in it:

from distutils.core import setup
from Cython.Build import cythonize
setup(name='Test One', ext_modules=cythonize("test_cp.pyx"),)

3) compile in you cmd:

python mysetup.py build_ext --inplace

4) create a separate python module (ex: run_code.py) and import your .pyx code:

from test_cy import test
# now use the function that was in your .pyx code

Upvotes: 1

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