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Every update that hadn't been acknowledged on the main connection yet would be resent on any new connection. These new connections are made temporary when invoking anything from any thread that's not the main thread. It would also process all the updates, hence, Telegram would be resending these not-acknowledged updates to the temporary connection, and the updates would be processed again, then the update handler would react to the duplicated updates over and over. To fix this, simply don't process updates on the temporary thread at all. With this reasoning, if we don't acknowledge updates on the temporary connections, Telegram will resend them on the main connection, so we should not lose any.
Telethon
========
.. epigraph::
⭐️ Thanks **everyone** who has starred the project, it means a lot!
**Telethon** is Telegram client implementation in **Python 3** which uses
the latest available API of Telegram. Remember to use **pip3** to install!
Installing
----------
.. code:: sh
pip install telethon
Creating a client
-----------------
.. code:: python
from telethon import TelegramClient
# These example values won't work. You must get your own api_id and
# api_hash from https://my.telegram.org, under API Development.
api_id = 12345
api_hash = '0123456789abcdef0123456789abcdef'
phone = '+34600000000'
client = TelegramClient('session_name', api_id, api_hash)
client.connect()
# If you already have a previous 'session_name.session' file, skip this.
client.sign_in(phone=phone)
me = client.sign_in(code=77777) # Put whatever code you received here.
Doing stuff
-----------
.. code:: python
print(me.stringify())
client.send_message('username', 'Hello! Talking to you from Telethon')
client.send_file('username', '/home/myself/Pictures/holidays.jpg')
client.download_profile_photo(me)
total, messages, senders = client.get_message_history('username')
client.download_media(messages[0])
Next steps
----------
Do you like how Telethon looks? Check the
`wiki over GitHub <https://github.com/LonamiWebs/Telethon/wiki>`_ for a
more in-depth explanation, with examples, troubleshooting issues, and more
useful information.