anchor.diff: -{ lib, fetchPypi, buildPythonPackage, isPy3k, boost, numpy, pytestCheckHook, pytest-benchmark }:
  +{ lib, fetchPypi, buildPythonPackage, isPy3k, boost, numpy, pytestCheckHook, pytest-benchmark, setuptools-scm }:
   
   buildPythonPackage rec {
     pname = "boost-histogram";
  
positive.code:     description = "Python bindings for the C++14 Boost::Histogram library";
      homepage = "https://github.com/scikit-hep/boost-histogram";
      license = licenses.bsd3;
      platforms = platforms.unix;
      maintainers = with maintainers; [ veprbl ];
    };
  }
  
negative.code:     sha256 = "a27842b2f1cfecc509382da2b25b03056354696482b38ec3c0220af0fc9b7579";
    };
  
    nativeBuildInputs = [ setuptools-scm ];
  
    buildInputs = [ boost ];
  
    propagatedBuildInputs = [ numpy ];
  
    checkInputs = [ pytestCheckHook pytest-benchmark ];
  