python-telegram-bot/telegram/base.py
Bibo-Joshi 2d4d48b89d Extend rich comparison of objects (#1724)
* Make most objects comparable

* ID attrs for PollAnswer

* fix test_game

* fix test_userprofilephotos

* update for API 4.7

* Warn on meaningless comparisons

* Update for API 4.8

* Address review

* Get started on docs, update Message._id_attrs

* Change PollOption & InputLocation

* Some more changes

* Even more changes
2020-10-07 20:30:41 +02:00

90 lines
2.6 KiB
Python

#!/usr/bin/env python
#
# A library that provides a Python interface to the Telegram Bot API
# Copyright (C) 2015-2020
# 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/].
"""Base class for Telegram Objects."""
try:
import ujson as json
except ImportError:
import json
import warnings
class TelegramObject:
"""Base class for most telegram objects."""
_id_attrs = ()
def __str__(self):
return str(self.to_dict())
def __getitem__(self, item):
return self.__dict__[item]
@classmethod
def de_json(cls, data, bot):
if not data:
return None
data = data.copy()
return data
def to_json(self):
"""
Returns:
:obj:`str`
"""
return json.dumps(self.to_dict())
def to_dict(self):
data = dict()
for key in iter(self.__dict__):
if key == 'bot' or key.startswith('_'):
continue
value = self.__dict__[key]
if value is not None:
if hasattr(value, 'to_dict'):
data[key] = value.to_dict()
else:
data[key] = value
if data.get('from_user'):
data['from'] = data.pop('from_user', None)
return data
def __eq__(self, other):
if isinstance(other, self.__class__):
if self._id_attrs == ():
warnings.warn("Objects of type {} can not be meaningfully tested for "
"equivalence.".format(self.__class__.__name__))
if other._id_attrs == ():
warnings.warn("Objects of type {} can not be meaningfully tested for "
"equivalence.".format(other.__class__.__name__))
return self._id_attrs == other._id_attrs
return super().__eq__(other) # pylint: disable=no-member
def __hash__(self):
if self._id_attrs:
return hash((self.__class__, self._id_attrs)) # pylint: disable=no-member
return super().__hash__()