import logging
from telegram.ext import (
 Application,
)
logging.basicConfig(
 level=logging.INFO,
 format="%(asctime)s - %(name)s - %(levelname)s - %(message)s",
)
logger = logging.getLogger(__file__)
logger.setLevel(logging.INFO)
logging.getLogger("httpx").setLevel(logging.WARNING)
def error_handler(update, context) -> None:
 logger.exception(
 msg="Unhanlded Exception while handling an update:", exc_info=context.error
 )
async def post_init(application: Application) -> None:
 await application.bot.send_message(OWNER_USER_ID, "deployed")
def main():
 application = (
 Application.builder()
 .token(TOKEN)
 .post_init(post_init)
 .read_timeout(20)
 .write_timeout(20)
 .connect_timeout(20)
 .pool_timeout(10)
 .get_updates_read_timeout(20)
 .build()
 )
 application.run_polling(
 allowed_updates=["message", "callback_query"], bootstrap_retries=10
 )
if __name__ == "__main__":
 main()

python-telegram-bot 22.5
Bot API 9.2
Python 3.13.9 (main, Oct 21 2025, 02:09:29) [GCC 14.2.0]

/usr/local/lib/python3.13/site-packages/telegram/ext/_application.py:631: RuntimeWarning: coroutine 'Application._update_fetcher' was never awaited
 self._update_fetcher(), name=f"Application:{self.bot.id}:update_fetcher"
RuntimeWarning: Enable tracemalloc to get the object allocation traceback
Traceback (most recent call last):
 File "<frozen runpy>", line 198, in _run_module_as_main
 File "<frozen runpy>", line 88, in _run_code
 File "/app/project/__main__.py", line 4, in <module>
 main()
 ~~~~^^
 File "/app/project/bot/bot_getupdates.py", line 79, in main
 application.run_polling(allowed_updates=["message", "callback_query"], bootstrap_retries=10)
 ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "/usr/local/lib/python3.13/site-packages/telegram/ext/_application.py", line 839, in run_polling
 return self.__run(
 ~~~~~~~~~~^
 updater_coroutine=self.updater.start_polling(
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 ...<9 lines>...
 close_loop=close_loop,
 ^^^^^^^^^^^^^^^^^^^^^^
 )
 ^
 File "/usr/local/lib/python3.13/site-packages/telegram/ext/_application.py", line 1061, in __run
 loop.run_until_complete(self.start())
 ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^
 File "/usr/local/lib/python3.13/asyncio/base_events.py", line 725, in run_until_complete
 return future.result()
 ~~~~~~~~~~~~~^^
 File "/usr/local/lib/python3.13/site-packages/telegram/ext/_application.py", line 631, in start
 self._update_fetcher(), name=f"Application:{self.bot.id}:update_fetcher"
 ^^^^^^^^^^^
 File "/usr/local/lib/python3.13/site-packages/telegram/_bot.py", line 553, in id
 return self.bot.id
 ^^^^^^^^
 File "/usr/local/lib/python3.13/site-packages/telegram/_bot.py", line 542, in bot
 raise RuntimeError(
 ...<2 lines>...
 )
RuntimeError: ExtBot is not properly initialized. Call `ExtBot.initialize` before accessing this property.
Exception ignored in: <function Connection.__del__ at 0x7f954e1c2fc0>
Traceback (most recent call last):
 File "/usr/local/lib/python3.13/site-packages/aiomysql/connection.py", line 1131, in __del__
 File "/usr/local/lib/python3.13/site-packages/aiomysql/connection.py", line 339, in close
 File "/usr/local/lib/python3.13/asyncio/selector_events.py", line 1205, in close
 File "/usr/local/lib/python3.13/asyncio/selector_events.py", line 865, in close
 File "/usr/local/lib/python3.13/asyncio/base_events.py", line 833, in call_soon
 File "/usr/local/lib/python3.13/asyncio/base_events.py", line 556, in _check_closed
RuntimeError: Event loop is close