Add example script to print out all updates

telethon_examples/print_updates.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+# A simple script to print all updates received
+
+from telethon import TelegramClient
+from getpass import getpass
+from os import environ
+# environ is used to get API information from environment variables
+# You could also use a config file, pass them as arguments, 
+# or even hardcode them (not recommended)
+
+def main():
+    session_name = environ.get('TG_SESSION','session')
+    user_phone = environ['TG_PHONE'],
+    client = TelegramClient(session_name,
+            int(environ['TG_API_ID']), 
+                environ['TG_API_HASH'],
+                proxy=None,
+                update_workers=4)
+
+    print('INFO: Connecting to Telegram Servers...', end='', flush=True)
+    client.connect()
+    print('Done!')
+
+    if not client.is_user_authorized():
+        print('INFO: Unauthorized user')
+        client.send_code_request(user_phone)
+        code_ok = False
+        while not code_ok:
+            code = input('Enter the auth code: ')
+            try:
+                code_ok = client.sign_in(user_phone, code)
+            except SessionPasswordNeededError:
+                pw = getpass('Two step verification enabled. Please enter your password: ')
+                code_ok = client.sign_in(password=pw)
+    print('INFO: Client initialized succesfully!')
+
+    client.add_update_handler(update_handler)
+    input('Press Enter to stop this!\n')
+
+def update_handler(update):
+    print(update) 
+    print('Press Enter to stop this!')
+
+if __name__ == '__main__':
+    main()