with (import (builtins.fetchGit {
  name = "nixpkgs-20.03";
  url = "git@github.com:nixos/nixpkgs.git";
  rev = "5272327b81ed355bbed5659b8d303cf2979b6953";
  ref = "refs/tags/20.03";
}) {});

mkShell {

  buildInputs = [
    qt5.full
    sqlite
  ];

  propagatedBuildInputs = [
    python38Packages.pyqt5
    python38Packages.pytest
  ];

}