python-telegram-bot/telegram/utils/warnings.py
2022-05-06 18:19:11 +02:00

68 lines
2.2 KiB
Python

#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2021
# 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 classes used for warnings."""
import warnings
from typing import Type
class PTBUserWarning(UserWarning):
"""
Custom user warning class used for warnings in this library.
.. versionadded:: 14.0
"""
__slots__ = ()
class PTBRuntimeWarning(PTBUserWarning, RuntimeWarning):
"""
Custom runtime warning class used for warnings in this library.
.. versionadded:: 14.0
"""
__slots__ = ()
# https://www.python.org/dev/peps/pep-0565/ recommends to use a custom warning class derived from
# DeprecationWarning. We also subclass from TGUserWarning so users can easily 'switch off' warnings
class PTBDeprecationWarning(PTBUserWarning, DeprecationWarning):
"""
Custom warning class for deprecations in this library.
.. versionchanged:: 14.0
Renamed TelegramDeprecationWarning to PTBDeprecationWarning.
"""
__slots__ = ()
def warn(message: str, category: Type[Warning] = PTBUserWarning, stacklevel: int = 0) -> None:
"""
Helper function used as a shortcut for warning with default values.
.. versionadded:: 14.0
Args:
category (:obj:`Type[Warning]`): Specify the Warning class to pass to ``warnings.warn()``.
stacklevel (:obj:`int`): Specify the stacklevel to pass to ``warnings.warn()``. Pass the
same value as you'd pass directly to ``warnings.warn()``.
"""
warnings.warn(message, category=category, stacklevel=stacklevel + 1)