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https://github.com/python-telegram-bot/python-telegram-bot.git
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119 lines
3.6 KiB
Python
119 lines
3.6 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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"""Base class for Telegram Objects."""
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try:
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import ujson as json
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except ImportError:
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import json # type: ignore[no-redef]
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import warnings
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from typing import TYPE_CHECKING, Any, List, Optional, Tuple, Type, TypeVar
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from telegram.utils.types import JSONDict
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if TYPE_CHECKING:
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from telegram import Bot
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TO = TypeVar('TO', bound='TelegramObject', covariant=True)
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class TelegramObject:
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"""Base class for most telegram objects."""
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# def __init__(self, *args: Any, **_kwargs: Any):
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# pass
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_id_attrs: Tuple[Any, ...] = ()
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def __str__(self) -> str:
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return str(self.to_dict())
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def __getitem__(self, item: str) -> Any:
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return self.__dict__[item]
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@staticmethod
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def parse_data(data: Optional[JSONDict]) -> Optional[JSONDict]:
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if not data:
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return None
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return data.copy()
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@classmethod
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def de_json(cls: Type[TO], data: Optional[JSONDict], bot: 'Bot') -> Optional[TO]:
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data = cls.parse_data(data)
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if not data:
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return None
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if cls == TelegramObject:
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return cls()
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return cls(bot=bot, **data) # type: ignore[call-arg]
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@classmethod
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def de_list(cls: Type[TO], data: Optional[List[JSONDict]], bot: 'Bot') -> List[Optional[TO]]:
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if not data:
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return []
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return [cls.de_json(d, bot) for d in data]
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def to_json(self) -> str:
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"""
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Returns:
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:obj:`str`
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"""
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return json.dumps(self.to_dict())
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def to_dict(self) -> JSONDict:
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data = dict()
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for key in iter(self.__dict__):
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if key == 'bot' or key.startswith('_'):
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continue
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value = self.__dict__[key]
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if value is not None:
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if hasattr(value, 'to_dict'):
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data[key] = value.to_dict()
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else:
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data[key] = value
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if data.get('from_user'):
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data['from'] = data.pop('from_user', None)
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return data
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def __eq__(self, other: object) -> bool:
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if isinstance(other, self.__class__):
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if self._id_attrs == ():
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warnings.warn(
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f"Objects of type {self.__class__.__name__} can not be meaningfully tested for"
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" equivalence."
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)
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if other._id_attrs == ():
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warnings.warn(
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f"Objects of type {other.__class__.__name__} can not be meaningfully tested"
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" for equivalence."
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)
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return self._id_attrs == other._id_attrs
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return super().__eq__(other) # pylint: disable=no-member
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def __hash__(self) -> int:
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if self._id_attrs:
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return hash((self.__class__, self._id_attrs)) # pylint: disable=no-member
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return super().__hash__()
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