Preface

Many tutorials teach how to write Python code or build machine‑learning models, yet few explain how to distribute your work. This guide walks through creating a simple library and packaging it for others to install.

Preparation

Create the Project Folder

1

mkdir build_your_package_demo

Required Files

A minimal package needs:

• setup.py – metadata and build settings
• LICENSE – licensing terms
• README.md – project description

Writing the Library

Place your code under a package directory such as demo_pkg/__init__.py. You can also add modules like demo.py with functions to export.

Packaging with setuptools

setuptools turns the project into an installable distribution:

1
2
3
4
5
6
7
8

from setuptools import setup, find_packages

setup(
    name="demo-pkg",
    version="0.1.0",
    packages=find_packages(),
    install_requires=[],
)

Run python setup.py sdist bdist_wheel to produce source and wheel archives under dist/.

Uploading to PyPI

Install twine and upload the generated files:

1
2

pip install twine
python -m twine upload dist/*

After publishing, others can install your package with pip install demo-pkg.

Conclusion

Packaging code is straightforward once the folder structure is in place. Share your utilities with the community and iterate based on feedback.