anchor.diff:  
   python3Packages.buildPythonApplication rec {
     pname = "litecli";
  -  version = "1.1.0";
  +  version = "1.3.2";
   
     # Python 2 won't have prompt_toolkit 2.x.x
     # See: https://github.com/NixOS/nixpkgs/blob/f49e2ad3657dede09dc998a4a98fd5033fb52243/pkgs/top-level/python-packages.nix#L3408
  
positive.code:   preCheck = ''
      export XDG_CONFIG_HOME=$TMP
      # add missing file
      echo "litecli is awesome!" > tests/test.txt
    '';
  
    meta = with lib; {
  
negative.code: 
    src = python3Packages.fetchPypi {
      inherit pname version;
      sha256 = "0bfx7fw6jnkqxa82xvd10yx1w2wbmrrqxwbh4anp5x9wnl91a9lp";
    };
  
    propagatedBuildInputs = with python3Packages; [
  