Building and installing the extension module
Once we have written the functions successfully, the next thing to do is build the module and use it in our Python modules. The setup.py
file looks like the following code snippet:
from distutils.core import setup, Extension import numpy # define the extension module demo_module = Extension('numpy_api_demo', sources=['numpy_api.c'], include_dirs=[numpy.get_include()]) # run the setup setup(ext_modules=[demo_module])
As we are using NumPy-specific headers, we need to have the numpy.get_include
function in the include_dirs
variable. To run this setup file, we will use a familiar command:
python setup.py build_ext -inplace
The preceding command will create a numpy_api_demo.pyd
file in the directory for us ...
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