anchor.diff:  
   buildPythonPackage rec {
     pname = "pipx";
  -  version = "0.15.5.1";
  +  version = "0.15.6.0";
   
     disabled = pythonOlder "3.6";
   
  
positive.code:     "internet"
      "runpip"
      "upgrade"
    ];
  
    meta = with lib; {
  
negative.code:     owner = "pipxproject";
      repo = pname;
      rev = version;
      sha256 = "1yffswayjfkmq86ygisja0mkg55pqj9pdml5nc0z05222sfnvn1a";
    };
  
    propagatedBuildInputs = [ userpath argcomplete packaging ];
  