utils.py 文件源码

def flopen(*args, **kwargs):
    '''
    Shortcut for fopen with lock and context manager
    '''
    with fopen(*args, **kwargs) as fhandle:
        try:
            if is_fcntl_available(check_sunos=True):
                fcntl.flock(fhandle.fileno(), fcntl.LOCK_SH)
            yield fhandle
        finally:
            if is_fcntl_available(check_sunos=True):
                fcntl.flock(fhandle.fileno(), fcntl.LOCK_UN)