64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
# Pyrogram - Telegram MTProto API Client Library for Python
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# Copyright (C) 2017-2020 Dan <https://github.com/delivrance>
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#
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# This file is part of Pyrogram.
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#
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# Pyrogram is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by 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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# Pyrogram 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 General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with Pyrogram. If not, see <http://www.gnu.org/licenses/>.
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from typing import Union
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from pyrogram.api import functions, types
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from ...ext import BaseClient
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class GetChatMembersCount(BaseClient):
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def get_chat_members_count(
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self,
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chat_id: Union[int, str]
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) -> int:
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"""Get the number of members in a chat.
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Parameters:
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chat_id (``int`` | ``str``):
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Unique identifier (int) or username (str) of the target chat.
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Returns:
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``int``: On success, the chat members count is returned.
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Raises:
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ValueError: In case a chat id belongs to user.
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Example:
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.. code-block:: python
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count = app.get_chat_members_count("pyrogramchat")
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print(count)
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"""
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peer = self.resolve_peer(chat_id)
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if isinstance(peer, types.InputPeerChat):
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return self.send(
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functions.messages.GetChats(
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id=[peer.chat_id]
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)
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).chats[0].participants_count
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elif isinstance(peer, types.InputPeerChannel):
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return self.send(
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functions.channels.GetFullChannel(
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channel=peer
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)
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).full_chat.participants_count
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else:
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raise ValueError("The chat_id \"{}\" belongs to a user".format(chat_id))
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