Wrap C++ lib with Cython

Question

I\'m new to Cython and I\'m trying to use Cython to wrap a C/C++ static library. I made a simple example as follow.

Test.h:

#ifndef          


        

Answer 1

If your C++ code is only used by the wrapper, another option is to let the setup compile your .cpp file, like this:

from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext

ext_modules = [Extension("test",
                     ["test.pyx", "test.cpp"],
                     language='c++',
                     )]

setup(
  name = 'test',
  cmdclass = {'build_ext': build_ext},
  ext_modules = ext_modules
)

For linking to a static library you have to use the extra_objects argument in your Extension:

from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext

ext_modules = [Extension("test",
                     ["test.pyx"],
                     language='c++',
                     extra_objects=["libtest.a"],
                     )]

setup(
  name = 'test',
  cmdclass = {'build_ext': build_ext},
  ext_modules = ext_modules
)