test.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import traceback
import threading
from telegram.ext import Updater, CommandHandler

def start(bot, update):
	s = ""
	for line in traceback.format_stack():
		s = s + line.strip() +"\n"
	s = s +  str(threading.current_thread()) + "\n"
	bot.sendMessage(chat_id=update.message.chat_id, text=s)

def error(bot, update, error):
	print 'Update "%s" caused error "%s"' % (update, error)

updater = Updater(token='*')
dispatcher = updater.dispatcher

start_handler = CommandHandler('start', start)
dispatcher.addHandler(start_handler)
dispatcher.addErrorHandler(error)

updater.start_polling()