import threading

def func(frame, event, arg):
    try:
        threading.currentThread()
    except:
        print 'Ok, I have no clues why there could be an error here...'
    return func

import sys
sys.settrace(func)



import tokenize
def next(token, string, start, end, line):
   raise tokenize.StopTokenizing()
def getEmptyString():
   return ''
tokenize.tokenize(getEmptyString, next)