import os, subprocess, multiprocessing, shutil, os, sys, tempfile, atexit

DIR = tempfile.mkdtemp(prefix='temp_')
print 'CREATED TEMP DIRECTORY ' + DIR
def clean_temp():
  print 'ATEXIT: REMOVING TEMP DIRECTORY ' + DIR
  shutil.rmtree(DIR, ignore_errors=True)
atexit.register(clean_temp)

def task(msg):
  print msg

def run_commands(commands):
  pool = multiprocessing.Pool(processes=2)
  pool.map(task, commands, chunksize=1)

if __name__ == '__main__':
  run_commands(['task1', 'task2'])