anchor.diff:  , buildPythonPackage
   , fetchPypi
   , ddt
  +, installShellFiles
  +, openstackdocstheme
   , osc-lib
   , pbr
   , python-cinderclient
   , python-keystoneclient
   , python-novaclient
   , requests-mock
  +, sphinx
   , stestr
   }:
   
  
positive.code:     python-keystoneclient
      python-novaclient
    ];
  
    checkInputs = [
      ddt
  
negative.code:     sha256 = "c65e3d51018f193cce2daf3d0fd69daa36003bdb2b85df6b07b973e4c39e2f92";
    };
  
    nativeBuildInputs = [
      installShellFiles
      openstackdocstheme
      sphinx
    ];
  
    propagatedBuildInputs = [
      osc-lib
      pbr
  