{ pkgs ? (import <nixpkgs> {}).pkgs
}:
let
  mypython = pkgs.python3Full.withPackages (python-packages: with python-packages; [
    lxml virtualenvwrapper
    ]);
#  uiEnv = (import ./symphonic-ui-angular) {};
in with pkgs;
  pkgs.stdenv.mkDerivation {
    name = "play";
    buildInputs = [ mypython
                    libxml2
                  ];
    shellHook = ''
      virtualenv --no-setuptools venv
      export PATH=$PWD/venv/bin:$PATH
      pip install -r requirements.txt
    '';
  }