anchor.diff:  
     src = python3Packages.fetchPypi {
       inherit pname version;
  -    sha256 = "0cqil2cmnbw0jvb14v6kbr7l9yarfgy253cbb8v9znp0l4qfs7ra";
  +    sha256 = "0bfx7fw6jnkqxa82xvd10yx1w2wbmrrqxwbh4anp5x9wnl91a9lp";
     };
   
     propagatedBuildInputs = with python3Packages; [
  
positive.code: 
  python3Packages.buildPythonApplication rec {
    pname = "litecli";
    version = "1.1.0";
  
    # 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
  
negative.code:   preCheck = ''
      export XDG_CONFIG_HOME=$TMP
      # add missing file
      mkdir -p tests/data
      echo -e "t1,11\nt2,22\n" > tests/data/import_data.csv
    '';
  
    meta = with lib; {
  