How do I get the telegram bot object using python-telegram-bot

Question

I need to send telegram notifications to users. So I am using python-telegram-bot library for the same.

Now to send notifcations to the user I have created following method :

def send_notification(chat_id,text) :
    try :
        if chat_id is None or text is None :
            raise Exception("Invalid parameters")
        print(BOT)
        BOT.send_message(chat_id=chat_id, text=text,parse_mode="HTML")
    except Exception :
        logger.exception("AN exception occurred while sending telegram notification")


# Define a few command handlers. These usually take the two arguments bot and
# update. Error handlers also receive the raised TelegramError object in error.
def start(bot, update):
    """Send a message when the command /start is issued."""
    get_chat_id(update.message)
    BOT = bot
    bot.send_message(chat_id=update.message.chat_id, text="Subscribed successfully to  Bot")

Now the problem is I am not able to get the bot object. If I try to initialize one again by creating an object of class telegram.Bot I get the following exception :

[2019-07-18 10:52:56,517: ERROR/ForkPoolWorker-7] Error while getting Updates: Conflict: terminated by other getUpdates request; make sure that only one bot instance is running (409)

My bot is running using worker queues in celery. All I need is to get the instance of bot so that I can send message, I already have the chat id of the user saved in the database when start command is issued by the user. Can someone help me with this?

My initial questiion is that how do I get an instance of bot class. The error ocurred when I forecfully created another. — Paras

Batichico Batichico · Accepted Answer · 2019-07-23T09:24:18

You should have users in txt or json file and then use this:

def send_notification(text) :
  with open(file_path, "r") as jsonFile:
    data = json.load(jsonFile)
    for user in data:
      user_id = data[user]['id']
      try:
        bot.send_message(user_id,text)
      except:
        pass

How do I get the telegram bot object using python-telegram-bot

1 Answers