Add get_chat_members2.py

examples/get_chat_members2.py

@@ -0,0 +1,68 @@
+# Pyrogram - Telegram MTProto API Client Library for Python
+# Copyright (C) 2017-2018 Dan Tès <https://github.com/delivrance>
+#
+# This file is part of Pyrogram.
+#
+# Pyrogram is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Pyrogram 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 General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with Pyrogram.  If not, see <http://www.gnu.org/licenses/>.
+
+import time
+from string import ascii_lowercase
+
+from pyrogram import Client
+from pyrogram.api.errors import FloodWait
+
+"""This is an improved version of get_chat_members.py
+
+Since Telegram will return at most 10.000 members for a single query, this script
+repeats the search using numbers ("0" to "9") and all the available ascii letters ("a" to "z").
+
+This can be further improved by also searching for non-ascii characters (e.g.: Japanese script),
+as some user names may not contain ascii letters at all.
+"""
+
+app = Client("my_account")
+
+target = "pyrogramchat"  # Target channel/supergroup
+members = {}  # List that will contain all the members of the target chat
+limit = 200  # Amount of users to retrieve for each API call (max 200)
+
+# "" + "0123456789" + "abcdefghijklmnopqrstuvwxyz" (as list)
+queries = [""] + [str(i) for i in range(10)] + list(ascii_lowercase)
+
+with app:
+    for q in queries:
+        print('Searching for "{}"'.format(q))
+        offset = 0  # For each query, offset restarts from 0
+
+        while True:
+            try:
+                chunk = app.get_chat_members(target, offset, query=q)
+            except FloodWait as e:  # Very large chats could trigger FloodWait
+                print("Flood wait: {} seconds".format(e.x))
+                time.sleep(e.x)  # When it happens, wait X seconds and try again
+                continue
+
+            if not chunk.chat_members:
+                print('Done searching for "{}"'.format(q))
+                print()
+                break  # No more members left
+
+            members.update({i.user.id: i for i in chunk.chat_members})
+            offset += len(chunk.chat_members)
+
+            print("Total members: {}".format(len(members)))
+
+    print("Grand total: {}".format(len(members)))
+
+# Now the "members" list contains all the members of the target chat