[Python] Cython - Building package with source and compiled files

I'm pretty new to Cython. What I'm trying to do, is:

• Create a Python package with some Cython functions
• Use that package in a project (that uses Cython and Python)

The problem that I have is that I want to use the Cython functions (.pxd and .pyx) in the project, but when I install the package, I only have the .so files inside (already compiled).

Is it possible to combine all three file types (pxy, pxd and so) when downloading the package?

Thanks!

So far, I have already:

• Built functions (with no compilation errors)
• Created setup.py (with correct cythonize)
• Imported the package into the project, via pip install -r requirements.txt, using SSH and the link of the repo in Github.

setup.py:

from setuptools import setup, Extension, find_packages
from Cython.Build import cythonize
from setuptools.command.build_ext import build_ext
import os
import glob

extensions = [
Extension(
name=os.path.splitext(os.path.relpath(source, "."))[0].replace(
os.path.sep, "."
),
sources=[source],
language="c",
include_dirs=["test_package"],
)
for source in glob.glob("test_package/**/*.pyx", recursive=True)
if os.path.basename(source) != "__init__.py"
]


setup(
name="test_package",
version="1.0.0",
packages=find_packages(),
package_data={"test_package": ["**/*.pxd", "**/*.pxy"]},
include_package_data=True,
url="https://github.com/package/test_package",
install_requires=[
"Cython==3.0.12"
],
setup_requires=["Cython==3.0.12"],
ext_modules=cythonize(extensions, language_level="3"),
cmdclass={"build_ext": build_ext},
python_requires="==3.10",
)


project organization:

.
├── MANIFEST.in
├── README.md
├── test_package
│ ├── mappings
│ │ ├── __init__.py
│ │ ├── mappings.pxd
│ │ └── mappings.pyx
│ └── utils
│ ├── __init__.py
│ ├── utils.pxd
│ ├── utils.pyx
├── compile.sh
├── pyproject.toml
├── setup.py

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