How to find out which user blocked the bot?

Question

Python

There is a script for sending letters, I can prodynamize the user who blocked the bot, but how to find out which user with the user_id from the file blocked it?

try:
            text = message.text
            handle = open("Users/chatid_list.txt", "r")
            for line in handle:
                bot.send_message(line, text)
            handle.close()
        except:
            bot.send_message(message.chat.id, 'Заблокировали бота - ')

Answer 1

Well, an exception happens when sending a specific id - so display this id.
By the way, in except it is better to specify a specific type of exception. Because a ConnectionError may happen due to a downed network or a Telegram failure - and the bot will decide that everyone has blocked it.