nixos/templates/python.nix

{ pkgs ? import <nixpkgs> {}, python ? pkgs.python39, ... }:

let
  python-packages = ps: with ps; [
    pip
    setuptools
    wheel
  ];
in
pkgs.mkShell {
  nativeBuildInputs = with pkgs; [
    (python.withPackages python-packages)
    git
    zlib
    libgccjit
  ];

  shellHook = ''
    export LD_LIBRARY_PATH="${pkgs.zlib}/lib:${pkgs.libgccjit}/lib"
    python -m venv .venv
    source .venv/bin/activate
    pip list --outdated | grep -iE "^(pip|wheel)" > /dev/null && python -m pip install --upgrade pip wheel
  '';
}