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61 lines
2.1 KiB
Python
61 lines
2.1 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) 2015-2022
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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 contains helper functions related to inspecting the program stack.
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.. versionadded:: 20.0
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Warning:
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Contents of this module are intended to be used internally by the library and *not* by the
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user. Changes to this module are not considered breaking changes and may not be documented in
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the changelog.
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"""
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from pathlib import Path
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from types import FrameType
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from typing import Optional
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def was_called_by(frame: Optional[FrameType], caller: Path) -> bool:
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"""Checks if the passed frame was called by the specified file.
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Example:
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.. code:: pycon
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>>> was_called_by(inspect.currentframe(), Path(__file__))
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True
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Arguments:
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frame (:obj:`FrameType`): The frame - usually the return value of
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``inspect.currentframe()``. If :obj:`None` is passed, the return value will be
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:obj:`False`.
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caller (:obj:`pathlib.Path`): File that should be the caller.
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Returns:
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:obj:`bool`: Whether the frame was called by the specified file.
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"""
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if frame is None:
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return False
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# https://stackoverflow.com/a/57712700/10606962
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if Path(frame.f_code.co_filename) == caller:
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return True
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while frame.f_back:
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frame = frame.f_back
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if Path(frame.f_code.co_filename) == caller:
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return True
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return False
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