here is my problem: I want to fork a process an exec python inside I have tried if os.fork() == 0: os.execlp('python', 'myfile.py', 'myoption1', 'myoption2', 'myoption2value') else: os.wait() but i obtain Unknown option: -- from the python interpreter (and not from myfile.py) anybody have an idea? TIA -- Sylvain Thenault LOGILAB