telegram.ext.filters Module¶

This module contains the Filters for use with the MessageHandler class.

class telegram.ext.filters.BaseFilter¶

Bases: object

Base class for all Message Filters.

Subclassing from this class filters to be combined using bitwise operators:

And:

>>> (Filters.text & Filters.entity(MENTION))

Or:

>>> (Filters.audio | Filters.video)

Not:

>>> ~ Filters.command

Also works with more than two filters:

>>> (Filters.text & (Filters.entity(URL) | Filters.entity(TEXT_LINK)))
>>> Filters.text & (~ Filters.forwarded)

If you want to create your own filters create a class inheriting from this class and implement a filter method that returns a boolean: True if the message should be handled, False otherwise. Note that the filters work only as class instances, not actual class objects (so remember to initialize your filter classes).

By default the filters name (what will get printed when converted to a string for display) will be the class name. If you want to overwrite this assign a better name to the name class variable.

name¶: str – Name for this filter. Defaults to the type of filter.

filter(message)¶

This method must be overwritten.

Parameters:	message (`telegram.Message`) – The message that is tested.
Returns:	`bool`

class telegram.ext.filters.Filters¶

Bases: object

Predefined filters for use as the filter argument of telegram.ext.MessageHandler.

Examples

Use MessageHandler(Filters.video, callback_method) to filter all video messages. Use MessageHandler(Filters.contact, callback_method) for all contacts. etc.

all = Filters.all¶: Filter – All Messages.

audio = Filters.audio¶: Filter – Messages that contain telegram.Audio.

class chat(chat_id=None, username=None)¶

Bases: telegram.ext.filters.BaseFilter

Filters messages to allow only those which are from specified chat ID.

Examples

MessageHandler(Filters.chat(-1234), callback_method)

Parameters:	chat_id (`int` \| List[`int`], optional) – Which chat ID(s) to allow through. username (`str` \| List[`str`], optional) – Which username(s) to allow through. If username start swith ‘@’ symbol, it will be ignored.
Raises:	`ValueError` – If chat_id and username are both present, or neither is.

command = Filters.command¶: Filter – Messages starting with /.

contact = Filters.contact¶: Filter – Messages that contain telegram.Contact.

document = Filters.document¶: Filter – Messages that contain telegram.Document.

class entity(entity_type)¶

Bases: telegram.ext.filters.BaseFilter

Filters messages to only allow those which have a telegram.MessageEntity where their type matches entity_type.

Examples

Example MessageHandler(Filters.entity("hashtag"), callback_method)

Parameters:	entity_type – Entity type to check for. All types can be found as constants in `telegram.MessageEntity`.

forwarded = Filters.forwarded¶: Filter – Messages that are forwarded.

game = Filters.game¶: Filter – Messages that contain telegram.Game.

group = Filters.group¶: Filter – Messages sent in a group chat.

invoice = Filters.invoice¶: Filter – Messages that contain telegram.Invoice.

class language(lang)¶

Bases: telegram.ext.filters.BaseFilter

Filters messages to only allow those which are from users with a certain language code.

Note: According to telegrams documentation, every single user does not have the language_code attribute.

Examples

MessageHandler(Filters.language("en"), callback_method)

Parameters:	lang (`str` \| List[`str`]) – Which language code(s) to allow through. This will be matched using `.startswith` meaning that ‘en’ will match both ‘en_US’ and ‘en_GB’.

location = Filters.location¶: Filter – Messages that contain telegram.Location.

photo = Filters.photo¶: Filter – Messages that contain telegram.PhotoSize.

private = Filters.private¶: Filter – Messages sent in a private chat.

reply = Filters.reply¶: Filter – Messages that are a reply to another message.

status_update = Filters.status_update¶

Subset for messages containing a status update.

Examples

Use these filters like: Filters.status_update.new_chat_members etc. Or use just Filters.status_update for all status update messages.

chat_created¶: Filter – Messages that contain telegram.Message.group_chat_created, telegram.Message.supergroup_chat_created or telegram.Message.channel_chat_created.

delete_chat_photo¶: Filter – Messages that contain telegram.Message.delete_chat_photo.

left_chat_member¶: Filter – Messages that contain telegram.Message.left_chat_member.

migrate¶: Filter – Messages that contain telegram.Message.migrate_from_chat_id or :attr: telegram.Message.migrate_from_chat_id.

new_chat_members¶: Filter – Messages that contain telegram.Message.new_chat_members.

new_chat_photo¶: Filter – Messages that contain telegram.Message.new_chat_photo.

new_chat_title¶: Filter – Messages that contain telegram.Message.new_chat_title.

pinned_message¶: Filter – Messages that contain telegram.Message.pinned_message.

sticker = Filters.sticker¶: Filter – Messages that contain telegram.Sticker.

successful_payment = Filters.successful_payment¶: Filter – Messages that confirm a telegram.SuccessfulPayment.

text = Filters.text¶: Filter – Text Messages.

class user(user_id=None, username=None)¶

Bases: telegram.ext.filters.BaseFilter

Filters messages to allow only those which are from specified user ID.

Examples

MessageHandler(Filters.user(1234), callback_method)

Parameters:	user_id (`int` \| List[`int`], optional) – Which user ID(s) to allow through. username (`str` \| List[`str`], optional) – Which username(s) to allow through. If username starts with ‘@’ symbol, it will be ignored.
Raises:	`ValueError` – If chat_id and username are both present, or neither is.

venue = Filters.venue¶: Filter – Messages that contain telegram.Venue.

video = Filters.video¶: Filter – Messages that contain telegram.Video.

voice = Filters.voice¶: Filter – Messages that contain telegram.Voice.

class telegram.ext.filters.InvertedFilter(f)¶

Bases: telegram.ext.filters.BaseFilter

Represents a filter that has been inverted.

Parameters:	f – The filter to invert.

class telegram.ext.filters.MergedFilter(base_filter, and_filter=None, or_filter=None)¶

Bases: telegram.ext.filters.BaseFilter

Represents a filter consisting of two other filters.

Parameters:	base_filter – Filter 1 of the merged filter and_filter – Optional filter to “and” with base_filter. Mutually exclusive with or_filter. or_filter – Optional filter to “or” with base_filter. Mutually exclusive with and_filter.