config_validation.py 文件源码

def socket_timeout(value):
    """Validate timeout float > 0.0.

    None coerced to socket._GLOBAL_DEFAULT_TIMEOUT bare object.
    """
    if value is None:
        return _GLOBAL_DEFAULT_TIMEOUT
    else:
        try:
            float_value = float(value)
            if float_value > 0.0:
                return float_value
            raise vol.Invalid('Invalid socket timeout value.'
                              ' float > 0.0 required.')
        except Exception as _:
            raise vol.Invalid('Invalid socket timeout: {err}'.format(err=_))


# pylint: disable=no-value-for-parameter