config.py 文件源码

def validate_group(val):
    if val is None:
        return os.getegid()

    if isinstance(val, int):
        return val
    elif val.isdigit():
        return int(val)
    else:
        try:
            return grp.getgrnam(val).gr_gid
        except KeyError:
            raise ConfigError("No such group: '%s'" % val)