anchor.diff:  , buildPythonPackage
   , fetchPypi
   , twisted
  +, passlib
   , pycrypto
   , pyopenssl
   , pyparsing
  +, service-identity
   , zope_interface
   , isPy3k
   }:
  
positive.code:   };
  
    propagatedBuildInputs = [
      twisted pycrypto pyopenssl pyparsing zope_interface
    ];
  
    disabled = isPy3k;
  
negative.code:     homepage = https://github.com/twisted/ldaptor;
      license = lib.licenses.mit;
    };
  }
  