anchor.diff:  { stdenv
   , buildPythonPackage
   , fetchPyPi
  +, lib
   
   , docutils
   , mistune
   }:
   
   let
  -  version = "0.1.5";
  +  version = "0.1.6";
   in
   buildPythonPackage {
     name = "m2r-${version}";
  
positive.code:   src = fetchPyPi {
      package = "m2r";
      inherit version;
      sha256 = "3448f770aed05ca10390d0917cd51836cbf82a2f095bc91507e6291cfab03223";
    };
  
    buildInputs = [
  
negative.code:     mistune
    ];
  
    meta = with lib; {
      maintainers = with maintainers; [
        wkennington
      ];
  