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74 lines
2.1 KiB
ReStructuredText
74 lines
2.1 KiB
ReStructuredText
.. _update-modes:
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============
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Update Modes
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============
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With ``asyncio``, the library has several tasks running in the background.
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One task is used for sending requests, another task is used to receive them,
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and a third one is used to handle updates.
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To handle updates, you must keep your script running. You can do this in
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several ways. For instance, if you are *not* running ``asyncio``'s event
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loop, you should use `client.run_until_disconnected
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<telethon.client.updates.UpdateMethods.run_until_disconnected>`:
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.. code-block:: python
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import asyncio
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from telethon import TelegramClient
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client = TelegramClient(...)
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...
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client.run_until_disconnected()
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Behind the scenes, this method is ``await``'ing on the `client.disconnected
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<telethon.client.telegrambaseclient.TelegramBaseClient.disconnected>` property,
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so the code above and the following are equivalent:
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.. code-block:: python
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import asyncio
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from telethon import TelegramClient
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client = TelegramClient(...)
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async def main():
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await client.disconnected
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loop = asyncio.get_event_loop()
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loop.run_until_complete(main())
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You could also run `client.disconnected
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<telethon.client.telegrambaseclient.TelegramBaseClient.disconnected>`
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until it completed.
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But if you don't want to ``await``, then you should know what you want
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to be doing instead! What matters is that you shouldn't let your script
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die. If you don't care about updates, you don't need any of this.
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Notice that unlike `client.disconnected
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<telethon.client.telegrambaseclient.TelegramBaseClient.disconnected>`,
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`client.run_until_disconnected
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<telethon.client.updates.UpdateMethods.run_until_disconnected>` will
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handle ``KeyboardInterrupt`` with you. This method is special and can
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also be ran while the loop is running, so you can do this:
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.. code-block:: python
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async def main():
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await client.run_until_disconnected()
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loop.run_until_complete(main())
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If you need to process updates sequentially (i.e. not in parallel),
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you should set ``sequential_updates=True`` when creating the client:
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.. code-block:: python
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with TelegramClient(..., sequential_updates=True) as client:
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...
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