I18n example¶
Internalize your bot Step 1: extract texts # pybabel extract i18n_example.py -o locales/mybot.pot Step 2: create *.po files. For e.g. create en, ru, uk locales. # echo {en,ru,uk} | xargs -n1 pybabel init -i locales/mybot.pot -d locales -D mybot -l Step 3: translate texts Step 4: compile translations # pybabel compile -d locales -D mybot Step 5: When you change the code of your bot you need to update po & mo files. Step 5.1: regenerate pot file: command from step 1 Step 5.2: update po files # pybabel update -d locales -D mybot -i locales/mybot.pot Step 5.3: update your translations Step 5.4: compile mo files command from step 4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | from pathlib import Path
from aiogram import Bot, Dispatcher, executor, types
from aiogram.contrib.middlewares.i18n import I18nMiddleware
TOKEN = 'BOT TOKEN HERE'
I18N_DOMAIN = 'mybot'
BASE_DIR = Path(__file__).parent
LOCALES_DIR = BASE_DIR / 'locales'
bot = Bot(TOKEN, parse_mode=types.ParseMode.HTML)
dp = Dispatcher(bot)
# Setup i18n middleware
i18n = I18nMiddleware(I18N_DOMAIN, LOCALES_DIR)
dp.middleware.setup(i18n)
# Alias for gettext method
_ = i18n.gettext
@dp.message_handler(commands=['start'])
async def cmd_start(message: types.Message):
# Simply use `_('message')` instead of `'message'` and never use f-strings for translatable texts.
await message.reply(_('Hello, <b>{user}</b>!').format(user=message.from_user.full_name))
@dp.message_handler(commands=['lang'])
async def cmd_lang(message: types.Message, locale):
await message.reply(_('Your current language: <i>{language}</i>').format(language=locale))
if __name__ == '__main__':
executor.start_polling(dp, skip_updates=True)
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