{ pkgs ? (import <nixpkgs>) {}}:

let
  pypiDataRev = "2505eb53d85cd727c87611ee4aa35152821a12b2";
  pypiDataSha256 = "0nhl0rzlp4fgzxb15pmnq14d0rzcwhvwn40vx7fnk41z9gwxcp4c";

  pypiData = builtins.fetchTarball {
    name = "pypi-deps-db-src";
    url = "https://github.com/DavHau/pypi-deps-db/tarball/${pypiDataRev}";
    sha256 = "${pypiDataSha256}";
  };

  mach-nix = import
    (builtins.fetchGit {
      url = "https://github.com/DavHau/mach-nix";
      ref = "refs/tags/3.5.0";
    })
    {
      inherit pypiData;

      python = "python39";
    };

  requirements = builtins.readFile ./requirements.txt;

  requirements-dev = ''
    django-debug-toolbar
    ipython
    black==22.3.0
    isort
    flake8
  '';
in

mach-nix.mkPythonShell {
  requirements = requirements + requirements-dev;
}