178         for fullname in fullnames:
179             self.known_modules[self.name + "." + fullname] = mod
181     def _get_module(self, fullname):  argument
182         return self.known_modules[self.name + "." + fullname]
184     def find_module(self, fullname, path=None):  argument
185         if fullname in self.known_modules:
189     def __get_module(self, fullname):  argument
191             return self.known_modules[fullname]
193             raise ImportError("This loader does not know module " + fullname)
195     def load_module(self, fullname):  argument
198             return sys.modules[fullname]
201         mod = self.__get_module(fullname)
206         sys.modules[fullname] = mod
209     def is_package(self, fullname):  argument
216         return hasattr(self.__get_module(fullname), "__path__")
218     def get_code(self, fullname):  argument
222         self.__get_module(fullname)  # eventually raises ImportError