Simple Python & Nix project

This repo is here to demonstrate how to setup a simple python project & control it using nix

Why use nix ?

Nix is a language that act as declarative package manager. By using nix you more easely control the reproducibility of your package.

Useful command

Here are some useful command

Developpment

When developping your package you can enter the dev shell using:

nix develop

The dev shell is shell that contains everything you defined inside of your flaxe.nix.

user@host:~/Documents/basic_python$ python3 --version 
Python 3.10.12
user@host:~/Documents/basic_python$ nix develop
warning: Git tree '/home/user/Documents/basic_python' is dirty
user@host:~/Documents/basic_python$ python3 --version
Python 3.11.12
user@host:~/Documents/basic_python$ exit
exit
user@host:~/Documents/basic_python$ python3 --version
Python 3.10.12

Therefore you can use any python version you want and switch between versions easly

Building

To build your package you can use the nix command

nix build

As a resultat you will obtain a symlink named result

.
├── basic_python_app
│   ├── __init__.py
│   └── __main__.py
├── flake.lock
├── flake.nix
├── pyproject.toml
├── README.md
└── result -> /nix/store/azf1c256zvqmd3x185yya8mvsah386al-python3.11-basic_python_app-0.1.0

Run

You can run your package using the nix command

nix run