old_contents: # See http://peak.telecommunity.com/DevCenter/setuptools#namespace-packages
  try:
      __import__('pkg_resources').declare_namespace(__name__)
  except ImportError:
      from pkgutil import extend_path
      __path__ = extend_path(__path__, __name__)
  
  from interfaces import IDescribed
  from interfaces import IEntity
  from interfaces import IIdentified
  from interfaces import INamed
  
new_contents: from interfaces import IDescribed
  from interfaces import IEntity
  from interfaces import IIdentified
  from interfaces import INamed
  
subject: remove namespace initializer from sparc.entity package