anchor.diff:      requests_toolbelt
       tzlocal
       urwid
  -    python.modules.sqlite3
       pkginfo
     ];
   
  
positive.code: { stdenv, fetchurl, pkgs, pythonPackages }:
  
  pythonPackages.buildPythonApplication rec {
    version = "0.7.0";
    name = "khal-${version}";
  
  
negative.code:     sha256 = "00llxj7cv31mjsx0j6zxmyi9s1q20yvfkn025xcy8cv1ylfwic66";
    };
  
    propagatedBuildInputs = with python3Packages; [
      atomicwrites
      click
      configobj
  