pyTelegramBotAPI/examples/detect_changes.py

#!/usr/bin/python

# This is a simple echo bot using the decorator mechanism.
# It echoes any incoming text messages.

import telebot

API_TOKEN = '<api_token>'

bot = telebot.TeleBot(API_TOKEN)


# Handle '/start' and '/help'
@bot.message_handler(commands=['help', 'start'])
def send_welcome(message):
    bot.reply_to(message, """\
Hi there, I am EchoBot.
I am here to echo your kind words back to you. Just say anything nice and I'll say the exact same thing to you!\
""")


# Handle all other messages with content_type 'text' (content_types defaults to ['text'])
@bot.message_handler(func=lambda message: True)
def echo_message(message):
    bot.reply_to(message, message.text)

# only for versions 4.7.0+
bot.infinity_polling(restart_on_change=True)