anchor.diff:  
   buildPythonPackage rec {
     pname = "pikepdf";
  -  version = "5.1.1";
  +  version = "5.1.2";
     format = "setuptools";
   
     disabled = pythonOlder "3.7";
  
positive.code:     extraPostFetch = ''
        rm "$out/.git_archival.txt"
      '';
      hash = "sha256-LgF46DGVWNuUN2KGdfOGSokf4reDx55ay3gP2LO+4dY=";
    };
  
    patches = [
  
negative.code:     setuptools
    ];
  
    pythonImportsCheck = [ "pikepdf" ];
  
    meta = with lib; {
  