code: def load_object(target, namespace=None):
      
      if namespace and ':' not in target:
          allowable = dict((i.name,  i) for i in pkg_resources.iter_entry_points(namespace))
          if target not in allowable:
              raise ValueError('Unknown plugin "' + target + '"; found: ' + ', '.join(allowable))
          return allowable[target].load()
  
      parts, target = target.split(':') if ':' in target else (target, None)
      module = __import__(parts)
  
      for part in parts.split('.')[1:] + ([target] if target else []):
          module = getattr(module, part)
  
      return module
docs: This helper function loads an object identified by a dotted-notation string.
  
      For example:
  
          # Load class Foo from example.objects
          load_object('example.objects:Foo')
  
      If a plugin namespace is provided simple name references are allowed.  For example:
  
          # Load the plugin named 'routing' from the 'web.dispatch' namespace
          load_object('routing', 'web.dispatch')
  
      Providing a namespace does not prevent full object lookup (dot-colon notation) from working.