How to Create and Publish a Python Package on PyPI 🐍

Publishing a Python package on PyPI is a significant milestone, and this article guides you through the process step by step. The author was working on a custom version of mkdocs-material and wanted to make it easily installable via pip. To achieve this, they learned how to build and publish their own Python package. The first step is to structure the project with a clean layout, including an `__init__.py` file, a `say_hello.py` module, tests, a `README.md` file, a `setup.py` file, a `pyproject.toml` file, and a `LICENSE` file. The `say_hello.py` module contains a simple function that greets users, and the `__init__.py` file makes the function accessible at the package level. The next step is to write tests to ensure the code behaves as expected, and then to add metadata to describe the package. The metadata is configured in the `setup.py` file, which includes information such as the package name, version, author, and description. After building the package using the `build` tool, you can install it locally and test it out. Finally, you can publish the package to PyPI using Twine, and it will be available for others to install and use.