2007 python multiprocessing

forkeval

import os

def evalexit(code):
   eval(code)
   raise SystemExit

def forkexpr(s):
   code = compile(s, "<string>", "eval")
   os.fork() or evalexit(code)

def forkstmt(s):
   code = compile(s, "<string>", "exec")
   os.fork() or evalexit(code)

if __name__ == "__main__":
   import time
   forkstmt("for x in xrange(10): print 'child:', str(x); time.sleep(0.02)")

   for x in xrange(10):
      print 'parent:', x
      time.sleep(0.03)

   os.wait()