telegram_bot.py

import logging

from telegram.ext import Updater, CommandHandler

logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
                    level=logging.INFO)

TOKEN = '' # your token here

updater = Updater(token=TOKEN, use_context=True)
dispatcher = updater.dispatcher

def start(update, context):
    context.bot.send_sticker(chat_id=update.effective_chat.id, sticker='CAACAgIAAxkBAAPqX2UNj7lpxN5zkwFDXvZy318bHxoAAlgEAALO2OgLbPcZZLyyHAYbBA')
    context.bot.send_message(chat_id=update.effective_chat.id, text="I'm a bot, please talk to me :)")
    logging.info(f'Got /start in chat_id {update.effective_chat.id}')

def echo(update, context):
    context.bot.send_message(chat_id=update.effective_chat.id, text=update.message.text)

from telegram.ext import MessageHandler, Filters
echo_handler = MessageHandler(Filters.sticker & (~Filters.command), echo)
dispatcher.add_handler(echo_handler)


start_handler = CommandHandler('start', start)
dispatcher.add_handler(start_handler)

updater.start_polling()