util.py 文件源码

def isIPv(version, ip):
    """Check if **ip** is a certain **version** (IPv4 or IPv6).

    .. warning: Do *not* put any calls to the logging module in this function,
        or else an infinite recursion will occur when the call is made, due
        the the log :class:`~logging.Filter`s in :mod:`~bridgedb.safelog`
        using this function to validate matches from the regular expression
        for IP addresses.

    :param integer version: The IPv[4|6] version to check; must be either
        ``4`` or ``6``. Any other value will be silently changed to ``4``.
    :param ip: The IP address to check. May be an any type which
        :class:`ipaddr.IPAddress` will accept.
    :rtype: boolean
    :returns: ``True``, if the address is an IPv4 address.
    """
    try:
        ipaddr.IPAddress(ip, version=version)
    except (ipaddr.AddressValueError, Exception):
        return False
    else:
        return True
    return False