Python decorator to detach decorated function by daemonizing it

multiprocess_util.py

def detached(f):
    """Generator for creating a forked process
    from a function"""

    def wrapper(*args, **kwargs):
        """Wrapper function to be returned from generator.
        Executes the function bound to the generator and then
        exits the process"""
        import os

        # Perform double fork
        if os.fork(): # Parent
            os.wait()
            return

        # Perform second fork
        os.setsid()
        if os.fork():
            os._exit(0)

        # Otherwise, we are the child
        f(*args, **kwargs)
        os._exit(0)

    #Try to be decorator-chain-friendly
    wrapper.__name__ = f.__name__
    wrapper.__dict__ = f.__dict__
    wrapper.__doc__ = f.__doc__
    return wrapper

+1
Greate way of doing it.