anchor.diff:      homepage = "http://pandas.pydata.org/";
       description = "Python Data Analysis Library";
       license = stdenv.lib.licenses.bsd3;
  -    maintainers = with stdenv.lib.maintainers; [ raskin fridh ];
  +    maintainers = with stdenv.lib.maintainers; [ raskin fridh knedlsepp ];
       platforms = stdenv.lib.platforms.unix;
     };
   }
  
positive.code:     openpyxl
      tables
      xlwt
    ] ++ optional isDarwin darwin.locale; # provides the locale command
  
    # For OSX, we need to add a dependency on libcxx, which provides
    # `complex.h` and other libraries that pandas depends on to build.
  
negative.code: , openpyxl
  , tables
  , xlwt
  , libcxx ? null
  }:
  
  