setup.py

from setuptools import setup, Extension
import os 

SRC_DIR = "stl_tools"

ext_1 = Extension(SRC_DIR + ".cwrapped",
                  [SRC_DIR + "/cwrapped.c"],
                  libraries=[],
                  include_dirs=[os.path.join(SRC_DIR, 'numpy_include')])
EXTENSIONS = [ext_1]

setup(name='stl_tools',
      version='0.4.2',
      install_requires=[
        'numpy>=1.18.1',
        'scipy',
        'matplotlib'],
      description="Generate STL files from numpy arrays and text",
      author='Tristan Hearn',
      author_email='tristanhearn@gmail.com',
      url='https://github.com/thearn/stl_tools',
      license='Apache 2.0',
      packages=['stl_tools'],
      ext_modules=EXTENSIONS,
      entry_points={
          'console_scripts':
          ['image2stl=stl_tools.image2stl:image2stl']
      }
      )