202 lines
9.2 KiB
ReStructuredText
202 lines
9.2 KiB
ReStructuredText
Pyrogram FAQ
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============
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This FAQ page provides answers to common questions about Pyrogram and, to some extent, Telegram in general.
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.. tip::
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If you think something interesting could be added here, feel free to propose it by opening a `Feature Request`_.
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.. contents:: Contents
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:backlinks: none
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:local:
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:depth: 1
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What is Pyrogram?
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-----------------
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**Pyrogram** is an elegant, easy-to-use Telegram_ client library and framework written from the ground up in Python and
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C. It enables you to easily create custom applications for both user and bot identities (bot API alternative) via the
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`MTProto API`_ with the Python programming language.
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.. _Telegram: https://telegram.org
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.. _MTProto API: topics/mtproto-vs-botapi#what-is-the-mtproto-api
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Where does the name come from?
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------------------------------
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The name "Pyrogram" is composed by **pyro**, which comes from the Greek word *πῦρ (pyr)*, meaning fire, and **gram**,
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from *Telegram*. The word *pyro* itself is built from *Python*, **py** for short, and the suffix **ro** to come up with
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the word *fire*, which also inspired the project logo.
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How old is Pyrogram?
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--------------------
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Pyrogram was first released on December 12, 2017. The actual work on the framework began roughly three months prior the
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initial public release on `GitHub`_.
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.. _GitHub: https://github.com/pyrogram/pyrogram
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Why Pyrogram?
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-------------
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- **Easy**: You can install Pyrogram with pip and start building your applications right away.
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- **Elegant**: Low-level details are abstracted and re-presented in a much nicer and easier way.
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- **Fast**: Crypto parts are boosted up by TgCrypto_, a high-performance library written in pure C.
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- **Documented**: Pyrogram API methods, types and public interfaces are well documented.
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- **Type-hinted**: Exposed Pyrogram types and method parameters are all type-hinted.
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- **Updated**, to make use of the latest Telegram API version and features.
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- **Bot API-like**: Similar to the Bot API in its simplicity, but much more powerful and detailed.
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- **Pluggable**: The `Smart Plugin`_ system allows to write components with minimal boilerplate code.
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- **Comprehensive**: Execute any `advanced action`_ an official client is able to do, and even more.
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.. _TgCrypto: https://github.com/pyrogram/tgcrypto
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.. _Smart Plugin: topics/smart-plugins
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.. _advanced action: topics/advanced-usage
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What can MTProto do more than the Bot API?
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------------------------------------------
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For a detailed answer, please refer to the `MTProto vs. Bot API`_ page.
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.. _MTProto vs. Bot API: topics/mtproto-vs-botapi
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Why do I need an API key for bots?
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----------------------------------
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Requests against the official bot API endpoint are made via JSON/HTTP, but are handled by an intermediate server
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application that implements the MTProto protocol -- just like Pyrogram -- and uses its own API key, which is always
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required, but hidden to the public.
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.. figure:: https://i.imgur.com/C108qkX.png
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:align: center
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Using MTProto is the only way to communicate with the actual Telegram servers, and the main API requires developers to
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identify applications by means of a unique key; the bot token identifies a bot as a user and replaces the user's phone
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number only.
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Can I use the same file_id across different accounts?
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-----------------------------------------------------
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No, Telegram doesn't allow this.
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File ids are personal and bound to a specific user/bot -- and an attempt in using a foreign file id will result in
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errors such as ``[400 MEDIA_EMPTY]``.
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The only exception are stickers' file ids; you can use them across different accounts without any problem, like this
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one: ``CAADBAADyg4AAvLQYAEYD4F7vcZ43AI``.
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Can I use Bot API's file_ids in Pyrogram?
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-----------------------------------------
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Definitely! All file ids you might have taken from the Bot API are 100% compatible and re-usable in Pyrogram...
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...at least for now.
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Telegram is slowly changing some server's internals and it's doing it in such a way that file ids are going to break
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inevitably. Not only this, but it seems that the new, hypothetical, file ids could also possibly expire at anytime, thus
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losing the *persistence* feature.
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This change will most likely affect the official `Bot API <topics/mtproto-vs-botapi#what-is-the-bot-api>`_ too
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(unless Telegram implements some workarounds server-side to keep backwards compatibility, which Pyrogram could in turn
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make use of) and we can expect a proper notice from Telegram.
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Can I use multiple clients at once on the same account?
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-------------------------------------------------------
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Yes, you can. Both user and bot accounts are able to run multiple sessions in parallel (up to 10 per account). However,
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you must pay attention and not use the *same* exact session in more than one client at the same time. In other words:
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- Avoid copying your session file: even if you rename the file, the copied sessions will still point to a specific one
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stored in the server.
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- Make sure that only one instance of your script runs, using your session file.
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If you -- even accidentally -- fail to do so, all the previous session copies will immediately stop receiving updates
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and eventually the server will start throwing the error ``[406 AUTH_KEY_DUPLICATED]``, inviting you to login again.
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Why is that so? Because the server has recognized two identical sessions are running in two different locations, and
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concludes it could possibly be due to a cloned/stolen device. Having the session ended in such occasions will protect
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the user's privacy.
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So, the only correct way to run multiple clients on the same account is authorizing your account (either user or bot)
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from the beginning every time, and use one separate session for each parallel client you are going to use.
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I started a client and nothing happens!
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---------------------------------------
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If you are connecting from Russia, China or Iran `you need a proxy`_, because Telegram could be partially or
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totally blocked in those countries.
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Another possible cause might be network issues, either yours or Telegram's. To confirm this, add the following code on
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the top of your script and run it again. You should see some error mentioning a socket timeout or an unreachable network
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in a bunch of seconds:
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.. code-block:: python
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import logging
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logging.basicConfig(level=logging.INFO)
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Another way to confirm you aren't able to connect to Telegram is by pinging these IP addresses and see whether ping
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fails or not:
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- DC1: ``149.154.175.50``
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- DC2: ``149.154.167.51``
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- DC3: ``149.154.175.100``
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- DC4: ``149.154.167.91``
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- DC5: ``91.108.56.149``
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.. _you need a proxy: topics/proxy
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I keep getting PEER_ID_INVALID error!
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-------------------------------------------
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The error in question is ``[400 PEER_ID_INVALID]``, and could mean several
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things:
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- The chat id you tried to use is simply wrong, double check it.
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- The chat id refers to a group or channel you are not a member of.
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- The chat id refers to a user you have't seen yet (from contacts, groups in common, forwarded messages or private
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chats).
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- The chat id argument you passed is in form of a string; you have to convert it into an integer with ``int(chat_id)``.
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My account has been deactivated/limited!
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----------------------------------------
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First of all, you should understand that Telegram wants to be a safe place for people to stay in, and to pursue this
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goal there are automatic protection systems running to prevent flood and spam, as well as a moderation team of humans
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who review reports.
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.. centered:: Pyrogram is a tool at your commands; it only does what you tell it to do, the rest is up to you.
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Having said that, here's a list of what Telegram definitely doesn't like:
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- Flood, abusing the API.
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- Spam, sending unsolicited messages or adding people to unwanted groups and channels.
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- Virtual/VoIP and cheap real numbers, because they are relatively easy to get and likely used for spam/flood.
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However, you might be right, and your account was deactivated/limited without any reason. This could happen because of
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mistakes by either the automatic systems or a moderator. In such cases you can kindly email Telegram at
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recover@telegram.org, contact `@smstelegram`_ on Twitter or use `this form`_.
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.. _@smstelegram: https://twitter.com/smstelegram
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.. _this form: https://telegram.org/support
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About the License
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-----------------
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.. image:: https://www.gnu.org/graphics/lgplv3-with-text-154x68.png
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:align: left
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Pyrogram is free software and is currently licensed under the terms of the
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`GNU Lesser General Public License v3 or later (LGPLv3+)`_. In short: you may use, redistribute and/or modify it
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provided that modifications are described and licensed for free under LGPLv3+.
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In other words: you can use and integrate Pyrogram into your own code --- either open source, under the same or
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different license, or even proprietary --- without being required to release the source code of your own applications.
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However, any modifications to the library itself are required to be published for free under the same LGPLv3+ license.
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.. _GNU Lesser General Public License v3 or later (LGPLv3+): https://github.com/pyrogram/pyrogram/blob/develop/COPYING.lesser
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.. _Bug Report: https://github.com/pyrogram/pyrogram/issues/new?labels=bug&template=bug_report.md
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.. _Feature Request: https://github.com/pyrogram/pyrogram/issues/new?labels=enhancement&template=feature_request.md
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