def get_plugin_module(self, plugin_name):
        """Returns the module containing the plugin of the given name."""
        try:
            return self.plugin_modules[plugin_name]
        except KeyError:
            raise RezPluginError("Unrecognised %s plugin: '%s'"
                                 % (self.pretty_type_name, plugin_name))
Returns the module containing the plugin of the given name.