code: def load_plugin(self, name):
          
          if '.' in name:
              raise ImportError('Plugin names cannot contain dots.')
          with self:
              return __import__(self.base.package + '.' + name,
                                globals(), {}, ['__name__'])
docs: This automatically loads a plugin by the given name from the
          current source and returns the module.  This is a convenient
          alternative to the import statement and saves you from invoking
          ``__import__`` or a similar function yourself.
  
          :param name: the name of the plugin to load.