How to create a .pyd file?

Question

I\'m creating a project that uses Python OpenCV. My image processing is a bit slow, so I thought I can made the code faster by creating a .pyd file (I read that

Answer 1

Use cythonize with respective dependencies:

from setuptools.extension import Extension
extensions.append(Extension("write the file names.pyx"))
from Cython.Build import cythonize
ext_modules = cythonize(extensions)

then,

setup(ext_modules=ext_modules, **setup_kwargs)

Answer 2

You have to run a setup.py file in a terminal. This one is an example that uses numpy

try:
    from setuptools import setup
    from setuptools import Extension
except ImportError:
    from distutils.core import setup
    from distutils.extension import Extension

from Cython.Distutils import build_ext
import numpy as np

ext_modules = [Extension("my_code_cython",["my_code_cython.pyx"]),
               Extension("another_code_cython",["another_code_cython.pyx"])]

setup(
    name= 'Generic model class',
    cmdclass = {'build_ext': build_ext},
    include_dirs = [np.get_include()],
    ext_modules = ext_modules)

In the terminal (cmd in Windows) you have to execute the command

python setup.py build_ext --inplace

It is important that I suppose you have installed the compiler (Microsoft Visual C++ Compiler Package for Python 2.7 for example). You can find more information in https://github.com/cython/cython/wiki/CythonExtensionsOnWindows