switch languages using pygettext in runtime

There is a small project: [login to view URL] It outputs: 'one, two, three' If the line 13 _ = [login to view URL] is commented, then the output is translated to Russian: 'раз, два, три'. Translation is performed using pygettext. Translations are stored in the locales folder. There is a python module appendix.py. The module contains class Output. Output has a method additional_print(). Task: I need to switch between languages in __main__.py. If i want to get Russian output , then _ = ru.gettext. If i want to use English output, then _ = gettext.gettext. I want to choose the language in __main__ only, and not in appendix.py. No changes to the Output class should be done. The choise of the language should be somehow expanded to the [login to view URL] module. Language should not be passed as argument to the additional_print() funciton. Output class should stay in the module appendix.py. No dependency injection is possible.