whatstyle.py 文件源码

def per_process_init():
    # type: () -> None
    try:
        os.nice(19)
    except AttributeError:
        # nice is not available everywhere.
        pass
    except OSError:
        # When this program is already running on the nicest level (20) on OS X
        # it is not permitted to change the priority.
        pass
    # A keyboard interrupt disrupts the communication between a
    # Python script and its subprocesses when using multiprocessing.
    # The child can ignore SIGINT and is properly shut down
    # by a pool.terminate() call in case of a keyboard interrupt
    # or an early generator exit.
    signal.signal(signal.SIGINT, signal.SIG_IGN)