anchor.diff:        colorama
         docutils
         rsa
  -      pyasn1
         pkgs.groff
         pkgs.less
       ];
  
positive.code:       sha256 = "03f3d9bebad06681771016b8752a40b12f615ff32363c7aa19b3798e73ccd615";
      };
  
      buildInputs = with self; [ pyasn1 unittest2 ];
  
      checkPhase = ''
        ${python.interpreter} run_tests.py
  
negative.code:     doCheck = false; # requires redis server
      propagatedBuildInputs = with self; [
        setuptools docker_registry_core blinker flask gevent gunicorn pyyaml
        requests2 rsa sqlalchemy9 setuptools backports_lzma m2crypto
      ];
  
      patchPhase = "> requirements/main.txt";
  