voluptuous IP address validation

ip_validation.py

import ipaddress
from voluptuous.schema_builder import message
from voluptuous import All, Invalid, Required, Schema
from voluptuous.error import Invalid

class IPInvalid(Invalid):
    """The value is not valid IP."""


@message('expected an IP address', cls=IPInvalid)
def IPAddr(v):
    """Verify that the value is an IP or not.
    Support validate IPv4 or IPv6
    >>> s = Schema(validIP())
    >>> with raises(MultipleInvalid, 'expected an IP address'):
    ...   s("127.0.0.1")
    >>> with raises(MultipleInvalid, 'expected an IP address'):
    ...   s("192.168.0.1")
    >>> with raises(MultipleInvalid, 'expected an IP address'):
    ...   s("0.0.0.0")
    >>> s('1.1.1.1')
    '1.1.1.1'
    """
    try:
        if not v:
            raise IPInvalid("expected an IP address")

        # this function only available in python 3
        ipaddress.ip_address(v)
        return v
    except:
        raise ValueError


# Run example

from voluptuous import ALLOW_EXTRA, All, Required, Schema, Optional, MultipleInvalid


schema = Schema({
    Required('ip'): All(IPAddr()),
    Required('name'): str,
    Optional('description'): str
}, extra=ALLOW_EXTRA)

print(schema({
    "ip": "127.3.0.1.1",
    "name": "sdf",
    "description": "sdf",
}))