bot.py

import telegram
from telegram.ext import Updater, CallbackQueryHandler, MessageHandler, Filters, ConversationHandler, PrefixHandler
import logging

logging.basicConfig(
	format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
	level=logging.DEBUG
)
TOKEN = ""
MAIN = "MAIN"
INLINE = "INLINE"
MIDDLE = "MIDDLE"


def start_callback(update, context):
	m = telegram.InlineKeyboardMarkup([
		[telegram.InlineKeyboardButton(text='variant 1', callback_data='1')],
		[telegram.InlineKeyboardButton(text='variant 1', callback_data='2')]
	])
	context.bot.send_message(
		update.message.from_user.id,
		text='Start',
		reply_markup=m
	)
	return INLINE


def inline_callback(update, context):
	context.bot.send_message(
		update.message.from_user.id,
		text='message will not be sent'
	)
	return ConversationHandler.END


conv = ConversationHandler(
	entry_points=[PrefixHandler('/', 'start', start_callback)],
	states={
		INLINE: [CallbackQueryHandler('[0-9]', inline_callback)]
	},
	fallbacks=[]
)


def main():
	updater = Updater(token=TOKEN, use_context=True)
	dispatcher = updater.dispatcher
	dispatcher.add_handler(conv)
	updater.start_polling()
	updater.idle()


if __name__ == "__main__":
	main()