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pythonexceptiontelegramhandle

Error handling Telegram bot

I am trying to avoid a telegram error. This error occurs when a message is not modified:

telegram.error.BadRequest: Message is not modified

I would like to make a function to print a message when this error occurs instead the original error message telegram prints. I have tried something like this but does not work:

def error_callback(bot, update, error):
    try:
        raise error
    except BadRequest:
        # handle malformed requests - read more below!
        print('Same message')
Solution

  • First of all, if there are no evident bugs, this error could be happen if a user if clicking too fast on a button. In this case it can be easily ignored.

    Assuming you are using python-telegram-bot library looking at your code, you can follow 2 approaches:

    1. Ignore the error globally:

    def error(bot, update, error): if not (error.message == "Message is not modified"): logger.warning('Update "%s" caused error "%s"' % (update, error))

    but you will still receive on the console:

    2017-11-03 17:16:41,405 - telegram.ext.dispatcher - WARNING - A TelegramError was raised while processing the Update

    the only thing you can do is to disable that string for any error of any type doing this:

    updater.dispatcher.logger.addFilter((lambda s: not s.msg.endswith('A TelegramError was raised while processing the Update'))) in your main(). credits

    2. Ignore the error in the method you are calling:

    You can ignore the error in the method you are calling doing:

    try: # the method causing the error except TelegramError as e: if str(e) != "Message is not modified": print(e)

    This second approach will ignore the error completely on the console without modifying the error callback function, but you have to use it in every single method causing that exception.

    Printing 'text' instead of ignoring:

    i suggest you to ignore the error, but if you want to print a string as you said: you can very easily modify those 2 approaches to print the string.

    Example for the first approach:

    def error(bot, update, error): if error.message == "Message is not modified": # print your string return logger.warning('Update "%s" caused error "%s"' % (update, error))

    Example of the second approach:

    try: # the method causing the error except TelegramError as e: if str(e) == "Message is not modified": print(your_string)