multithreading - python threading : cannot switch thread to Daemon -

i expect next code executed simultaneously , filenames os.walk iterations , got 0 @ random , in result dictionary. , threads have timeout deamon mode , killed script reaches end. however, script respects timeouts each thread.

why happening? should put threads in backgroung , kill them if not finish , return result before end of script execution? thank you.

import threading import os  import time  import random  def check_file(file_name,timeout):     time.sleep(timeout)         print file_name      result.append(file_name)  result = [] home,dirs,files in os.walk("."):     ifile in files :         filename = '/'.join([home,ifile])         t = threading.thread(target=check_file(filename,random.randint(0,5)))         t.setdaemon(true)         t.start()  print result 

solution: found mistake:

t = threading.thread(target=check_file(filename,random.randint(0,5))) 

has

t = threading.thread(target=check_file, args=(filename,random.randint(0,5))) 

in case, threading spawn thread function object ang give arguments. in initial example, function args has resolved before thread spawns. , fair.

however, example above works me @ 2.7.3 , @ 2.7.2 cannot make working. `m getting got exception

function check_file accepts 1 argument (34 given). 

soulution : in 2.7.2 had put ending coma in args tuple , considering have 1 variable . god knows why not affects 2.7.3 version .

t = threading.thread(target=check_file, args=(filename)) 

and started work

t = threading.thread(target=check_file, args=(filename,)) 

i understand trying do, you're not using right format threading. fixed example...look queue class on how properly.

secondly, never ever string manipulation on file paths. use os.path module; there's lot more adding separators between strings , don't think of time.

good luck!

import threading import os  import time  import random import queue  def check_file():     while true:         item = q.get()         time.sleep(item[1])         print item         q.task_done()  q = queue.queue() result = [] home,dirs,files in os.walk("."):     ifile in files:         filename = os.path.join(home, ifile)         q.put((filename, random.randint(0,5)))  number_of_threads = 25 in range(number_of_threads):     t = threading.thread(target=check_file)     t.daemon = true     t.start()  q.join()   print result