let
  pkgs = import <nixpkgs> {};
in
pkgs.mkShell {
  buildInputs = with pkgs; [
    git
    nixfmt
    pkgs.python3
    pkgs.python3Packages.black
    pkgs.python3Packages.pytest
    pkgs.python3Packages.pytest-black
    pkgs.python3Packages.pytest-flake8
    pkgs.python3Packages.pytest-mypy
    pkgs.python3Packages.pytest-pylint
  ];

  shellHook = ''
    export PYTHONPATH=${./src}:$PYTHONPATH
  '';
}