Создаю бота, ругается питон

import logging
 
from proxy import ProxyManager
 
from bot_handler import BotHandler
 
# https://api.telegram.org/bot905781067:AAGR8Uf7OBGOlW0kLAUAjUNI-xPxzJ7-cpM/getUpdates
token = '905781067:AAGR8Uf7OBGOlW0kLAUAjUNI-xPxzJ7-cpM'
 
 
def init_logger():
    logger = logging.getLogger('bot')
    logger.setLevel(logging.DEBUG)
    formatter = logging.Formatter('%(asctime)s %(levelname)-8s %(message)s')
 
    console = logging.StreamHandler()
    console.setLevel(logging.DEBUG)
    console.setFormatter(formatter)
 
    filehandler = logging.FileHandler('logger.log')
    filehandler.setLevel(logging.DEBUG)
    filehandler.setFormatter(formatter)
 
    logger.addHandler(console)
    logger.addHandler(filehandler)
 
 
def main():
    init_logger()
 
    logging.getLogger('bot').info('start ' + 15*'=')
 
    pm = ProxyManager(timeout=0.5) # , host_and_port=('142.93.109.250', '3128'))
    bot = BotHandler(token, proxymanager=pm)
    offset = None
 
    while True:
        updates = bot.get_updates(offset)
        if updates:
            logging.getLogger('bot').debug('New messages: ' + str(len(updates)))
            offset = int(updates[-1]['update_id']) + 1
 
            for update in updates:
                update_text = update['message']['text']
                update_chat_id = update['message']['chat']['id']
                update_chat_name = update['message']['chat']
 
                logging.getLogger('bot').debug(
                    str(update_chat_name['username']) + ' | ' +
                    str(update_text)
                )
 
                bot.send_message(update_chat_id, bot.generate_answer(update_text))
 
 
if __name__ == '__main__':
    try:
        main()
    except KeyboardInterrupt:
        logging.getLogger('bot').info('exit: KeyboardInterrupt')
        exit()