Cython: “fatal error: numpy/arrayobject.h: No such file or directory”
In your setup.py, the Extension should have the argument include_dirs=[numpy.get_include()]. Also, you are missing np.import_array() in your code. — Example setup.py: from distutils.core import setup, Extension from Cython.Build import cythonize import numpy setup( ext_modules=[ Extension(“my_module”, [“my_module.c”], include_dirs=[numpy.get_include()]), ], ) # Or, if you use cythonize() to make the ext_modules list, # include_dirs can be passed … Read more