Also changes the default value for `bootstrap_retries` on polling

		self.__polling_task = asyncio.create_task(
		self._network_loop_retry(
		network_retry_loop(
		is_running=lambda: self.running,

as long as the delay between them is large enough to eliminate intermittent connectivity problems as the source of potential problems

So far I have implemented the initial retry-interval to 0 seconds for Application.initialize

interval=0,

but I see that the bootstrapping within Updater uses an initial interval of 1 second - I can use that for Application as well:

bootstrap_interval: float = 1,

Note that the retry-loop retries immediately on timeout errors. On other errors, the interval is increased step by step up to 30 seconds:

	try:
	if not await do_action():
	break
	except RetryAfter as exc:
	slack_time = 0.5
	_LOGGER.info(
	"%s %s. Adding %s seconds to the specified time.", log_prefix, exc, slack_time
	)
	cur_interval = slack_time + exc.retry_after
	except TimedOut as toe:
	_LOGGER.debug("%s Timed out: %s. Retrying immediately.", log_prefix, toe)
	# If failure is due to timeout, we should retry asap.
	cur_interval = 0
	except InvalidToken:
	_LOGGER.exception("%s Invalid token. Aborting retry loop.", log_prefix)
	raise
	except TelegramError as telegram_exc:
	if on_err_cb:
	on_err_cb(telegram_exc)

	if max_retries < 0 or retries < max_retries:
	_LOGGER.debug(
	"%s Failed run number %s of %s. Retrying.", log_prefix, retries, max_retries
	)
	else:
	_LOGGER.exception(
	"%s Failed run number %s of %s. Aborting.", log_prefix, retries, max_retries
	)
	raise

	# increase waiting times on subsequent errors up to 30secs
	cur_interval = 1 if cur_interval == 0 else min(30, 1.5 * cur_interval)

Specifying the retry-interval is currently not exposed to the user in the Updater.start_* methods and for starters that would seem like a bit of overkill, TBH.

@septatrix would this + (customizable) finite number of retries be enough for you?

❌ 2 Tests Failed:

Tests completed	Failed	Passed	Skipped
6531	2	6529	746

View the top 2 failed test(s) by shortest run time

tests.test_bot.TestBotWithRequest::test_send_close_date_default_tz[Europe/Berlin-ZoneInfo]

Stack Traces | 7.35s run time

self = <tests.test_bot.TestBotWithRequest object at 0x000001CE6EFE70D0>
tz_bot = PytestExtBot[token=690091347:AAFLmR5pAB5Ycpe_mOh7zM4JFBOh0z3T0To]
super_group_id = '-1001279600026'
    async def test_send_close_date_default_tz(self, tz_bot, super_group_id):
        question = "Is this a test?"
        answers = ["Yes", "No", "Maybe"]
        reply_markup = InlineKeyboardMarkup.from_button(
            InlineKeyboardButton(text="text", callback_data="data")
        )
        aware_close_date = dtm.datetime.now(tz=tz_bot.defaults.tzinfo) + dtm.timedelta(seconds=5)
        close_date = aware_close_date.replace(tzinfo=None)
        msg = await tz_bot.send_poll(  # The timezone returned from this is always converted to UTC
            chat_id=super_group_id,
            question=question,
            options=answers,
            close_date=close_date,
            read_timeout=60,
        )
        msg.poll._unfreeze()
        # Sometimes there can be a few seconds delay, so don't let the test fail due to that-
>       msg.poll.close_date = msg.poll.close_date.astimezone(aware_close_date.tzinfo)
E       AttributeError: 'NoneType' object has no attribute 'astimezone'
tests\test_bot.py:2843: AttributeError

tests.test_bot.TestBotWithRequest::test_send_close_date_default_tz[Asia/Singapore-timezone]

Stack Traces | 7.37s run time

self = <tests.test_bot.TestBotWithRequest object at 0x00000223F0A048D0>
tz_bot = PytestExtBot[token=690091347:AAFLmR5pAB5Ycpe_mOh7zM4JFBOh0z3T0To]
super_group_id = '-1001279600026'
    async def test_send_close_date_default_tz(self, tz_bot, super_group_id):
        question = "Is this a test?"
        answers = ["Yes", "No", "Maybe"]
        reply_markup = InlineKeyboardMarkup.from_button(
            InlineKeyboardButton(text="text", callback_data="data")
        )
        aware_close_date = dtm.datetime.now(tz=tz_bot.defaults.tzinfo) + dtm.timedelta(seconds=5)
        close_date = aware_close_date.replace(tzinfo=None)
        msg = await tz_bot.send_poll(  # The timezone returned from this is always converted to UTC
            chat_id=super_group_id,
            question=question,
            options=answers,
            close_date=close_date,
            read_timeout=60,
        )
        msg.poll._unfreeze()
        # Sometimes there can be a few seconds delay, so don't let the test fail due to that-
>       msg.poll.close_date = msg.poll.close_date.astimezone(aware_close_date.tzinfo)
E       AttributeError: 'NoneType' object has no attribute 'astimezone'
tests\test_bot.py:2843: AttributeError

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