python-telegram-bot/telegram/ext/_utils/_update_parsing.py
Pablo Martínez 5ab82a9c2b
Drop Support for Python 3.8 (#4398)
Co-authored-by: poolitzer <github@poolitzer.eu>
Co-authored-by: Hinrich Mahler <22366557+Bibo-Joshi@users.noreply.github.com>
2024-10-24 20:48:49 +02:00

50 lines
1.9 KiB
Python

#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2024
# Leandro Toledo de Souza <devs@python-telegram-bot.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser Public License for more details.
#
# You should have received a copy of the GNU Lesser Public License
# along with this program. If not, see [http://www.gnu.org/licenses/].
"""This module contains helper functions related to parsing updates and their contents.
.. versionadded:: 20.8
Warning:
Contents of this module are intended to be used internally by the library and *not* by the
user. Changes to this module are not considered breaking changes and may not be documented in
the changelog.
"""
from typing import Optional
from telegram._utils.types import SCT
def parse_chat_id(chat_id: Optional[SCT[int]]) -> frozenset[int]:
"""Accepts a chat id or collection of chat ids and returns a frozenset of chat ids."""
if chat_id is None:
return frozenset()
if isinstance(chat_id, int):
return frozenset({chat_id})
return frozenset(chat_id)
def parse_username(username: Optional[SCT[str]]) -> frozenset[str]:
"""Accepts a username or collection of usernames and returns a frozenset of usernames.
Strips the leading ``@`` if present.
"""
if username is None:
return frozenset()
if isinstance(username, str):
return frozenset({username.removeprefix("@")})
return frozenset(usr.removeprefix("@") for usr in username)