gettext.bindtextdomain('main','некий_каталог')
gettext.textdomain('main')
lang_tr = {}
for lang in ['ru','en','es']:
lang_tr[lang] = gettext.translation('domain', 'каталог', [lang])
lang_tr['ru'].gettext('Message')
lang_tr['en'].gettext('Message')
lang_tr['es'].gettext('Message')
lang_tr['ru'].install()
_('Message')