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224 lines
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..
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Make sure to apply any changes to this file to README_RAW.rst as well!
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.. image:: https://raw.githubusercontent.com/python-telegram-bot/logos/master/logo-text/png/ptb-logo-text_768.png
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:align: center
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:target: https://python-telegram-bot.org
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:alt: python-telegram-bot Logo
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.. image:: https://img.shields.io/pypi/v/python-telegram-bot.svg
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:target: https://pypi.org/project/python-telegram-bot/
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:alt: PyPi Package Version
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.. image:: https://img.shields.io/pypi/pyversions/python-telegram-bot.svg
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:target: https://pypi.org/project/python-telegram-bot/
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:alt: Supported Python versions
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.. image:: https://img.shields.io/badge/Bot%20API-6.4-blue?logo=telegram
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:target: https://core.telegram.org/bots/api-changelog
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:alt: Supported Bot API versions
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.. image:: https://img.shields.io/pypi/dm/python-telegram-bot
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:target: https://pypistats.org/packages/python-telegram-bot
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:alt: PyPi Package Monthly Download
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.. image:: https://readthedocs.org/projects/python-telegram-bot/badge/?version=stable
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:target: https://docs.python-telegram-bot.org/en/stable/
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:alt: Documentation Status
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.. image:: https://img.shields.io/pypi/l/python-telegram-bot.svg
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:target: https://www.gnu.org/licenses/lgpl-3.0.html
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:alt: LGPLv3 License
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.. image:: https://github.com/python-telegram-bot/python-telegram-bot/workflows/GitHub%20Actions/badge.svg
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:target: https://github.com/python-telegram-bot/python-telegram-bot/
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:alt: Github Actions workflow
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.. image:: https://codecov.io/gh/python-telegram-bot/python-telegram-bot/branch/master/graph/badge.svg
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:target: https://app.codecov.io/gh/python-telegram-bot/python-telegram-bot
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:alt: Code coverage
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.. image:: https://isitmaintained.com/badge/resolution/python-telegram-bot/python-telegram-bot.svg
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:target: https://isitmaintained.com/project/python-telegram-bot/python-telegram-bot
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:alt: Median time to resolve an issue
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.. image:: https://api.codacy.com/project/badge/Grade/99d901eaa09b44b4819aec05c330c968
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:target: https://app.codacy.com/gh/python-telegram-bot/python-telegram-bot/dashboard
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:alt: Code quality: Codacy
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.. image:: https://deepsource.io/gh/python-telegram-bot/python-telegram-bot.svg/?label=active+issues
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:target: https://deepsource.io/gh/python-telegram-bot/python-telegram-bot/?ref=repository-badge
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:alt: Code quality: DeepSource
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.. image:: https://results.pre-commit.ci/badge/github/python-telegram-bot/python-telegram-bot/master.svg
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:target: https://results.pre-commit.ci/latest/github/python-telegram-bot/python-telegram-bot/master
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:alt: pre-commit.ci status
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.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
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:target: https://github.com/psf/black
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:alt: Code Style: Black
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.. image:: https://img.shields.io/badge/Telegram-Channel-blue.svg?logo=telegram
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:target: https://t.me/pythontelegrambotchannel
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:alt: Telegram Channel
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.. image:: https://img.shields.io/badge/Telegram-Group-blue.svg?logo=telegram
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:target: https://telegram.me/pythontelegrambotgroup
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:alt: Telegram Group
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We have made you a wrapper you can't refuse
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We have a vibrant community of developers helping each other in our `Telegram group <https://telegram.me/pythontelegrambotgroup>`_. Join us!
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*Stay tuned for library updates and new releases on our* `Telegram Channel <https://telegram.me/pythontelegrambotchannel>`_.
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Introduction
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============
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This library provides a pure Python, asynchronous interface for the
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`Telegram Bot API <https://core.telegram.org/bots/api>`_.
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It's compatible with Python versions **3.7+**.
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In addition to the pure API implementation, this library features a number of high-level classes to
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make the development of bots easy and straightforward. These classes are contained in the
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``telegram.ext`` submodule.
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A pure API implementation *without* ``telegram.ext`` is available as the standalone package ``python-telegram-bot-raw``. `See here for details. <https://github.com/python-telegram-bot/python-telegram-bot/blob/master/README_RAW.rst>`_
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Note
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----
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Installing both ``python-telegram-bot`` and ``python-telegram-bot-raw`` in conjunction will result in undesired side-effects, so only install *one* of both.
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Telegram API support
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====================
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All types and methods of the Telegram Bot API **6.4** are supported.
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Installing
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==========
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You can install or upgrade ``python-telegram-bot`` via
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.. code:: shell
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$ pip install python-telegram-bot --upgrade
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To install a pre-release, use the ``--pre`` `flag <https://pip.pypa.io/en/stable/cli/pip_install/#cmdoption-pre>`_ in addition.
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You can also install ``python-telegram-bot`` from source, though this is usually not necessary.
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.. code:: shell
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$ git clone https://github.com/python-telegram-bot/python-telegram-bot
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$ cd python-telegram-bot
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$ python setup.py install
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Verifying Releases
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------------------
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We sign all the releases with a GPG key.
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The signatures are uploaded to both the `GitHub releases page <https://github.com/python-telegram-bot/python-telegram-bot/releases>`_ and the `PyPI project <https://pypi.org/project/python-telegram-bot/>`_ and end with a suffix ``.asc``.
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Please find the public keys `here <https://github.com/python-telegram-bot/python-telegram-bot/tree/master/public_keys>`_.
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The keys are named in the format ``<first_version>-<last_version>.gpg`` or ``<first_version>-current.gpg`` if the key is currently being used for new releases.
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In addition, the GitHub release page also contains the sha1 hashes of the release files in the files with the suffix ``.sha1``.
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This allows you to verify that a release file that you downloaded was indeed provided by the ``python-telegram-bot`` team.
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Dependencies & Their Versions
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-----------------------------
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``python-telegram-bot`` tries to use as few 3rd party dependencies as possible.
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However, for some features using a 3rd party library is more sane than implementing the functionality again.
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As these features are *optional*, the corresponding 3rd party dependencies are not installed by default.
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Instead, they are listed as optional dependencies.
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This allows to avoid unnecessary dependency conflicts for users who don't need the optional features.
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The only required dependency is `httpx[http2] ~= 0.23.3 <https://www.python-httpx.org>`_ for
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``telegram.request.HTTPXRequest``, the default networking backend. By default, HTTP/2 is used, as it
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provides greater performance and stability, specially for concurrent requests.
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``python-telegram-bot`` is most useful when used along with additional libraries.
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To minimize dependency conflicts, we try to be liberal in terms of version requirements on the (optional) dependencies.
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On the other hand, we have to ensure stability of ``python-telegram-bot``, which is why we do apply version bounds.
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If you encounter dependency conflicts due to these bounds, feel free to reach out.
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Optional Dependencies
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#####################
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PTB can be installed with optional dependencies:
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* ``pip install python-telegram-bot[passport]`` installs the `cryptography>=3.0 <https://cryptography.io/en/stable>`_ library. Use this, if you want to use Telegram Passport related functionality.
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* ``pip install python-telegram-bot[socks]`` installs `httpx[socks] <https://www.python-httpx.org/#dependencies>`_. Use this, if you want to work behind a Socks5 server.
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* ``pip install python-telegram-bot[rate-limiter]`` installs `aiolimiter~=1.0.0 <https://aiolimiter.readthedocs.io/en/stable/>`_. Use this, if you want to use ``telegram.ext.AIORateLimiter``.
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* ``pip install python-telegram-bot[webhooks]`` installs the `tornado~=6.2 <https://www.tornadoweb.org/en/stable/>`_ library. Use this, if you want to use ``telegram.ext.Updater.start_webhook``/``telegram.ext.Application.run_webhook``.
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* ``pip install python-telegram-bot[callback-data]`` installs the `cachetools~=5.3.0 <https://cachetools.readthedocs.io/en/latest/>`_ library. Use this, if you want to use `arbitrary callback_data <https://github.com/python-telegram-bot/python-telegram-bot/wiki/Arbitrary-callback_data>`_.
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* ``pip install python-telegram-bot[job-queue]`` installs the `APScheduler~=3.9.1 <https://apscheduler.readthedocs.io/en/3.x/>`_ library and enforces `pytz>=2018.6 <https://pypi.org/project/pytz/>`_, where ``pytz`` is a dependency of ``APScheduler``. Use this, if you want to use the ``telegram.ext.JobQueue``.
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To install multiple optional dependencies, separate them by commas, e.g. ``pip install python-telegram-bot[socks,webhooks]``.
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Additionally, two shortcuts are provided:
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* ``pip install python-telegram-bot[all]`` installs all optional dependencies.
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* ``pip install python-telegram-bot[ext]`` installs all optional dependencies that are related to ``telegram.ext``, i.e. ``[rate-limiter, webhooks, callback-data, job-queue]``.
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Quick Start
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===========
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Our Wiki contains an `Introduction to the API <https://github.com/python-telegram-bot/python-telegram-bot/wiki/Introduction-to-the-API>`_ explaining how the pure Bot API can be accessed via ``python-telegram-bot``.
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Moreover, the `Tutorial: Your first Bot <https://github.com/python-telegram-bot/python-telegram-bot/wiki/Extensions-%E2%80%93-Your-first-Bot>`_ gives an introduction on how chatbots can be easily programmed with the help of the ``telegram.ext`` module.
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Resources
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=========
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- The `package documentation <https://docs.python-telegram-bot.org/>`_ is the technical reference for ``python-telegram-bot``.
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It contains descriptions of all available classes, modules, methods and arguments as well as the `changelog <https://docs.python-telegram-bot.org/changelog.html>`_.
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- The `wiki <https://github.com/python-telegram-bot/python-telegram-bot/wiki/>`_ is home to number of more elaborate introductions of the different features of ``python-telegram-bot`` and other useful resources that go beyond the technical documentation.
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- Our `examples section <https://docs.python-telegram-bot.org/examples.html>`_ contains several examples that showcase the different features of both the Bot API and ``python-telegram-bot``.
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Even if it is not your approach for learning, please take a look at ``echobot.py``. It is the de facto base for most of the bots out there.
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The code for these examples is released to the public domain, so you can start by grabbing the code and building on top of it.
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- The `official Telegram Bot API documentation <https://core.telegram.org/bots/api>`_ is of course always worth a read.
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Getting help
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============
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If the resources mentioned above don't answer your questions or simply overwhelm you, there are several ways of getting help.
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1. We have a vibrant community of developers helping each other in our `Telegram group <https://telegram.me/pythontelegrambotgroup>`_. Join us! Asking a question here is often the quickest way to get a pointer in the right direction.
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2. Ask questions by opening `a discussion <https://github.com/python-telegram-bot/python-telegram-bot/discussions/new>`_.
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3. You can even ask for help on Stack Overflow using the `python-telegram-bot tag <https://stackoverflow.com/questions/tagged/python-telegram-bot>`_.
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Concurrency
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===========
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Since v20.0, ``python-telegram-bot`` is built on top of Pythons ``asyncio`` module.
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Because ``asyncio`` is in general single-threaded, ``python-telegram-bot`` does currently not aim to be thread-safe.
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Noteworthy parts of ``python-telegram-bots`` API that are likely to cause issues (e.g. race conditions) when used in a multi-threaded setting include:
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* ``telegram.ext.Application/Updater.update_queue``
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* ``telegram.ext.ConversationHandler.check/handle_update``
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* ``telegram.ext.CallbackDataCache``
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* ``telegram.ext.BasePersistence``
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* all classes in the ``telegram.ext.filters`` module that allow to add/remove allowed users/chats at runtime
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Contributing
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============
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Contributions of all sizes are welcome.
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Please review our `contribution guidelines <https://github.com/python-telegram-bot/python-telegram-bot/blob/master/.github/CONTRIBUTING.rst>`_ to get started.
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You can also help by `reporting bugs or feature requests <https://github.com/python-telegram-bot/python-telegram-bot/issues/new>`_.
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Donating
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========
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Occasionally we are asked if we accept donations to support the development.
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While we appreciate the thought, maintaining PTB is our hobby, and we have almost no running costs for it. We therefore have nothing set up to accept donations.
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If you still want to donate, we kindly ask you to donate to another open source project/initiative of your choice instead.
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License
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=======
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You may copy, distribute and modify the software provided that modifications are described and licensed for free under `LGPL-3 <https://www.gnu.org/licenses/lgpl-3.0.html>`_.
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Derivatives works (including modifications or anything statically linked to the library) can only be redistributed under LGPL-3, but applications that use the library don't have to be.
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