anchor.diff:  
   buildPythonPackage rec {
     pname = "diff_cover";
  -  version = "2.6.0";
  +  version = "2.6.1";
   
     preCheck = ''
       export LC_ALL=en_US.UTF-8;
  
positive.code: 
    src = fetchPypi {
      inherit pname version;
      sha256 = "1bsxc9x3yx5dy2r3b3lzi97wz0ma3ncd14jr27n6lbqvl20w92mm";
    };
  
    propagatedBuildInputs = [ jinja2 jinja2_pluralize pygments six inflect ];
  
negative.code: 
    meta = with stdenv.lib; {
      description = "Automatically find diff lines that need test coverage";
      homepage = "https://github.com/Bachmann1234/diff-cover";
      license = licenses.asl20;
      maintainers = with maintainers; [ dzabraev ];
    };
  