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https://github.com/python-telegram-bot/python-telegram-bot.git
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49 lines
1.7 KiB
Python
49 lines
1.7 KiB
Python
#!/usr/bin/env python
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#
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# A library that provides a Python interface to the Telegram Bot API
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# Copyright (C) 2015-2021
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# Leandro Toledo de Souza <devs@python-telegram-bot.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser Public License for more details.
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#
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# You should have received a copy of the GNU Lesser Public License
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# along with this program. If not, see [http://www.gnu.org/licenses/].
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"""This module facilitates the deprecation of functions."""
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import warnings
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from typing import Callable, TypeVar
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RT = TypeVar('RT')
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# We use our own DeprecationWarning since they are muted by default and "UserWarning" makes it
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# seem like it's the user that issued the warning
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# We name it something else so that you don't get confused when you attempt to suppress it
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class TelegramDeprecationWarning(Warning):
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pass
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def warn_deprecate_obj(old: str, new: str, stacklevel: int = 3) -> None:
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warnings.warn(
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f'{old} is being deprecated, please use {new} from now on.',
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category=TelegramDeprecationWarning,
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stacklevel=stacklevel,
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)
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def deprecate(func: Callable[..., RT], old: str, new: str) -> Callable[..., RT]:
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"""Warn users invoking old to switch to the new function."""
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def wrapped(*args: object, **kwargs: object) -> RT:
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warn_deprecate_obj(old, new)
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return func(*args, **kwargs)
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return wrapped
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