Delete tools/telemetry.

tools/telemetry/third_party/webpagereplay/third_party/ipaddr/ipaddr.py

Index: tools/telemetry/third_party/webpagereplay/third_party/ipaddr/ipaddr.py
diff --git a/tools/telemetry/third_party/webpagereplay/third_party/ipaddr/ipaddr.py b/tools/telemetry/third_party/webpagereplay/third_party/ipaddr/ipaddr.py
deleted file mode 100644
index ad27ae9d4f8f5635d69df50ed4256bb50405435d..0000000000000000000000000000000000000000
--- a/tools/telemetry/third_party/webpagereplay/third_party/ipaddr/ipaddr.py
+++ /dev/null
@@ -1,1897 +0,0 @@
-#!/usr/bin/python
-#
-# Copyright 2007 Google Inc.
-#  Licensed to PSF under a Contributor Agreement.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
-# implied. See the License for the specific language governing
-# permissions and limitations under the License.
-
-"""A fast, lightweight IPv4/IPv6 manipulation library in Python.
-
-This library is used to create/poke/manipulate IPv4 and IPv6 addresses
-and networks.
-
-"""
-
-__version__ = '2.1.10'
-
-import struct
-
-IPV4LENGTH = 32
-IPV6LENGTH = 128
-
-
-class AddressValueError(ValueError):
-    """A Value Error related to the address."""
-
-
-class NetmaskValueError(ValueError):
-    """A Value Error related to the netmask."""
-
-
-def IPAddress(address, version=None):
-    """Take an IP string/int and return an object of the correct type.
-
-    Args:
-        address: A string or integer, the IP address.  Either IPv4 or
-          IPv6 addresses may be supplied; integers less than 2**32 will
-          be considered to be IPv4 by default.
-        version: An Integer, 4 or 6. If set, don't try to automatically
-          determine what the IP address type is. important for things
-          like IPAddress(1), which could be IPv4, '0.0.0.1',  or IPv6,
-          '::1'.
-
-    Returns:
-        An IPv4Address or IPv6Address object.
-
-    Raises:
-        ValueError: if the string passed isn't either a v4 or a v6
-          address.
-
-    """
-    if version:
-        if version == 4:
-            return IPv4Address(address)
-        elif version == 6:
-            return IPv6Address(address)
-
-    try:
-        return IPv4Address(address)
-    except (AddressValueError, NetmaskValueError):
-        pass
-
-    try:
-        return IPv6Address(address)
-    except (AddressValueError, NetmaskValueError):
-        pass
-
-    raise ValueError('%r does not appear to be an IPv4 or IPv6 address' %
-                     address)
-
-
-def IPNetwork(address, version=None, strict=False):
-    """Take an IP string/int and return an object of the correct type.
-
-    Args:
-        address: A string or integer, the IP address.  Either IPv4 or
-          IPv6 addresses may be supplied; integers less than 2**32 will
-          be considered to be IPv4 by default.
-        version: An Integer, if set, don't try to automatically
-          determine what the IP address type is. important for things
-          like IPNetwork(1), which could be IPv4, '0.0.0.1/32', or IPv6,
-          '::1/128'.
-
-    Returns:
-        An IPv4Network or IPv6Network object.
-
-    Raises:
-        ValueError: if the string passed isn't either a v4 or a v6
-          address. Or if a strict network was requested and a strict
-          network wasn't given.
-
-    """
-    if version:
-        if version == 4:
-            return IPv4Network(address, strict)
-        elif version == 6:
-            return IPv6Network(address, strict)
-
-    try:
-        return IPv4Network(address, strict)
-    except (AddressValueError, NetmaskValueError):
-        pass
-
-    try:
-        return IPv6Network(address, strict)
-    except (AddressValueError, NetmaskValueError):
-        pass
-
-    raise ValueError('%r does not appear to be an IPv4 or IPv6 network' %
-                     address)
-
-
-def v4_int_to_packed(address):
-    """The binary representation of this address.
-
-    Args:
-        address: An integer representation of an IPv4 IP address.
-
-    Returns:
-        The binary representation of this address.
-
-    Raises:
-        ValueError: If the integer is too large to be an IPv4 IP
-          address.
-    """
-    if address > _BaseV4._ALL_ONES:
-        raise ValueError('Address too large for IPv4')
-    return Bytes(struct.pack('!I', address))
-
-
-def v6_int_to_packed(address):
-    """The binary representation of this address.
-
-    Args:
-        address: An integer representation of an IPv4 IP address.
-
-    Returns:
-        The binary representation of this address.
-    """
-    return Bytes(struct.pack('!QQ', address >> 64, address & (2**64 - 1)))
-
-
-def _find_address_range(addresses):
-    """Find a sequence of addresses.
-
-    Args:
-        addresses: a list of IPv4 or IPv6 addresses.
-
-    Returns:
-        A tuple containing the first and last IP addresses in the sequence.
-
-    """
-    first = last = addresses[0]
-    for ip in addresses[1:]:
-        if ip._ip == last._ip + 1:
-            last = ip
-        else:
-            break
-    return (first, last)
-
-def _get_prefix_length(number1, number2, bits):
-    """Get the number of leading bits that are same for two numbers.
-
-    Args:
-        number1: an integer.
-        number2: another integer.
-        bits: the maximum number of bits to compare.
-
-    Returns:
-        The number of leading bits that are the same for two numbers.
-
-    """
-    for i in range(bits):
-        if number1 >> i == number2 >> i:
-            return bits - i
-    return 0
-
-def _count_righthand_zero_bits(number, bits):
-    """Count the number of zero bits on the right hand side.
-
-    Args:
-        number: an integer.
-        bits: maximum number of bits to count.
-
-    Returns:
-        The number of zero bits on the right hand side of the number.
-
-    """
-    if number == 0:
-        return bits
-    for i in range(bits):
-        if (number >> i) % 2:
-            return i
-
-def summarize_address_range(first, last):
-    """Summarize a network range given the first and last IP addresses.
-
-    Example:
-        >>> summarize_address_range(IPv4Address('1.1.1.0'),
-            IPv4Address('1.1.1.130'))
-        [IPv4Network('1.1.1.0/25'), IPv4Network('1.1.1.128/31'),
-        IPv4Network('1.1.1.130/32')]
-
-    Args:
-        first: the first IPv4Address or IPv6Address in the range.
-        last: the last IPv4Address or IPv6Address in the range.
-
-    Returns:
-        The address range collapsed to a list of IPv4Network's or
-        IPv6Network's.
-
-    Raise:
-        TypeError:
-            If the first and last objects are not IP addresses.
-            If the first and last objects are not the same version.
-        ValueError:
-            If the last object is not greater than the first.
-            If the version is not 4 or 6.
-
-    """
-    if not (isinstance(first, _BaseIP) and isinstance(last, _BaseIP)):
-        raise TypeError('first and last must be IP addresses, not networks')
-    if first.version != last.version:
-        raise TypeError("%s and %s are not of the same version" % (
-                str(first), str(last)))
-    if first > last:
-        raise ValueError('last IP address must be greater than first')
-
-    networks = []
-
-    if first.version == 4:
-        ip = IPv4Network
-    elif first.version == 6:
-        ip = IPv6Network
-    else:
-        raise ValueError('unknown IP version')
-
-    ip_bits = first._max_prefixlen
-    first_int = first._ip
-    last_int = last._ip
-    while first_int <= last_int:
-        nbits = _count_righthand_zero_bits(first_int, ip_bits)
-        current = None
-        while nbits >= 0:
-            addend = 2**nbits - 1
-            current = first_int + addend
-            nbits -= 1
-            if current <= last_int:
-                break
-        prefix = _get_prefix_length(first_int, current, ip_bits)
-        net = ip('%s/%d' % (str(first), prefix))
-        networks.append(net)
-        if current == ip._ALL_ONES:
-            break
-        first_int = current + 1
-        first = IPAddress(first_int, version=first._version)
-    return networks
-
-def _collapse_address_list_recursive(addresses):
-    """Loops through the addresses, collapsing concurrent netblocks.
-
-    Example:
-
-        ip1 = IPv4Network('1.1.0.0/24')
-        ip2 = IPv4Network('1.1.1.0/24')
-        ip3 = IPv4Network('1.1.2.0/24')
-        ip4 = IPv4Network('1.1.3.0/24')
-        ip5 = IPv4Network('1.1.4.0/24')
-        ip6 = IPv4Network('1.1.0.1/22')
-
-        _collapse_address_list_recursive([ip1, ip2, ip3, ip4, ip5, ip6]) ->
-          [IPv4Network('1.1.0.0/22'), IPv4Network('1.1.4.0/24')]
-
-        This shouldn't be called directly; it is called via
-          collapse_address_list([]).
-
-    Args:
-        addresses: A list of IPv4Network's or IPv6Network's
-
-    Returns:
-        A list of IPv4Network's or IPv6Network's depending on what we were
-        passed.
-
-    """
-    ret_array = []
-    optimized = False
-
-    for cur_addr in addresses:
-        if not ret_array:
-            ret_array.append(cur_addr)
-            continue
-        if cur_addr in ret_array[-1]:
-            optimized = True
-        elif cur_addr == ret_array[-1].supernet().subnet()[1]:
-            ret_array.append(ret_array.pop().supernet())
-            optimized = True
-        else:
-            ret_array.append(cur_addr)
-
-    if optimized:
-        return _collapse_address_list_recursive(ret_array)
-
-    return ret_array
-
-
-def collapse_address_list(addresses):
-    """Collapse a list of IP objects.
-
-    Example:
-        collapse_address_list([IPv4('1.1.0.0/24'), IPv4('1.1.1.0/24')]) ->
-          [IPv4('1.1.0.0/23')]
-
-    Args:
-        addresses: A list of IPv4Network or IPv6Network objects.
-
-    Returns:
-        A list of IPv4Network or IPv6Network objects depending on what we
-        were passed.
-
-    Raises:
-        TypeError: If passed a list of mixed version objects.
-
-    """
-    i = 0
-    addrs = []
-    ips = []
-    nets = []
-
-    # split IP addresses and networks
-    for ip in addresses:
-        if isinstance(ip, _BaseIP):
-            if ips and ips[-1]._version != ip._version:
-                raise TypeError("%s and %s are not of the same version" % (
-                        str(ip), str(ips[-1])))
-            ips.append(ip)
-        elif ip._prefixlen == ip._max_prefixlen:
-            if ips and ips[-1]._version != ip._version:
-                raise TypeError("%s and %s are not of the same version" % (
-                        str(ip), str(ips[-1])))
-            ips.append(ip.ip)
-        else:
-            if nets and nets[-1]._version != ip._version:
-                raise TypeError("%s and %s are not of the same version" % (
-                        str(ip), str(ips[-1])))
-            nets.append(ip)
-
-    # sort and dedup
-    ips = sorted(set(ips))
-    nets = sorted(set(nets))
-
-    while i < len(ips):
-        (first, last) = _find_address_range(ips[i:])
-        i = ips.index(last) + 1
-        addrs.extend(summarize_address_range(first, last))
-
-    return _collapse_address_list_recursive(sorted(
-        addrs + nets, key=_BaseNet._get_networks_key))
-
-# backwards compatibility
-CollapseAddrList = collapse_address_list
-
-# We need to distinguish between the string and packed-bytes representations
-# of an IP address.  For example, b'0::1' is the IPv4 address 48.58.58.49,
-# while '0::1' is an IPv6 address.
-#
-# In Python 3, the native 'bytes' type already provides this functionality,
-# so we use it directly.  For earlier implementations where bytes is not a
-# distinct type, we create a subclass of str to serve as a tag.
-#
-# Usage example (Python 2):
-#   ip = ipaddr.IPAddress(ipaddr.Bytes('xxxx'))
-#
-# Usage example (Python 3):
-#   ip = ipaddr.IPAddress(b'xxxx')
-try:
-    if bytes is str:
-        raise TypeError("bytes is not a distinct type")
-    Bytes = bytes
-except (NameError, TypeError):
-    class Bytes(str):
-        def __repr__(self):
-            return 'Bytes(%s)' % str.__repr__(self)
-
-def get_mixed_type_key(obj):
-    """Return a key suitable for sorting between networks and addresses.
-
-    Address and Network objects are not sortable by default; they're
-    fundamentally different so the expression
-
-        IPv4Address('1.1.1.1') <= IPv4Network('1.1.1.1/24')
-
-    doesn't make any sense.  There are some times however, where you may wish
-    to have ipaddr sort these for you anyway. If you need to do this, you
-    can use this function as the key= argument to sorted().
-
-    Args:
-      obj: either a Network or Address object.
-    Returns:
-      appropriate key.
-
-    """
-    if isinstance(obj, _BaseNet):
-        return obj._get_networks_key()
-    elif isinstance(obj, _BaseIP):
-        return obj._get_address_key()
-    return NotImplemented
-
-class _IPAddrBase(object):
-
-    """The mother class."""
-
-    def __index__(self):
-        return self._ip
-
-    def __int__(self):
-        return self._ip
-
-    def __hex__(self):
-        return hex(self._ip)
-
-    @property
-    def exploded(self):
-        """Return the longhand version of the IP address as a string."""
-        return self._explode_shorthand_ip_string()
-
-    @property
-    def compressed(self):
-        """Return the shorthand version of the IP address as a string."""
-        return str(self)
-
-
-class _BaseIP(_IPAddrBase):
-
-    """A generic IP object.
-
-    This IP class contains the version independent methods which are
-    used by single IP addresses.
-
-    """
-
-    def __eq__(self, other):
-        try:
-            return (self._ip == other._ip
-                    and self._version == other._version)
-        except AttributeError:
-            return NotImplemented
-
-    def __ne__(self, other):
-        eq = self.__eq__(other)
-        if eq is NotImplemented:
-            return NotImplemented
-        return not eq
-
-    def __le__(self, other):
-        gt = self.__gt__(other)
-        if gt is NotImplemented:
-            return NotImplemented
-        return not gt
-
-    def __ge__(self, other):
-        lt = self.__lt__(other)
-        if lt is NotImplemented:
-            return NotImplemented
-        return not lt
-
-    def __lt__(self, other):
-        if self._version != other._version:
-            raise TypeError('%s and %s are not of the same version' % (
-                    str(self), str(other)))
-        if not isinstance(other, _BaseIP):
-            raise TypeError('%s and %s are not of the same type' % (
-                    str(self), str(other)))
-        if self._ip != other._ip:
-            return self._ip < other._ip
-        return False
-
-    def __gt__(self, other):
-        if self._version != other._version:
-            raise TypeError('%s and %s are not of the same version' % (
-                    str(self), str(other)))
-        if not isinstance(other, _BaseIP):
-            raise TypeError('%s and %s are not of the same type' % (
-                    str(self), str(other)))
-        if self._ip != other._ip:
-            return self._ip > other._ip
-        return False
-
-    # Shorthand for Integer addition and subtraction. This is not
-    # meant to ever support addition/subtraction of addresses.
-    def __add__(self, other):
-        if not isinstance(other, int):
-            return NotImplemented
-        return IPAddress(int(self) + other, version=self._version)
-
-    def __sub__(self, other):
-        if not isinstance(other, int):
-            return NotImplemented
-        return IPAddress(int(self) - other, version=self._version)
-
-    def __repr__(self):
-        return '%s(%r)' % (self.__class__.__name__, str(self))
-
-    def __str__(self):
-        return  '%s' % self._string_from_ip_int(self._ip)
-
-    def __hash__(self):
-        return hash(hex(long(self._ip)))
-
-    def _get_address_key(self):
-        return (self._version, self)
-
-    @property
-    def version(self):
-        raise NotImplementedError('BaseIP has no version')
-
-
-class _BaseNet(_IPAddrBase):
-
-    """A generic IP object.
-
-    This IP class contains the version independent methods which are
-    used by networks.
-
-    """
-
-    def __init__(self, address):
-        self._cache = {}
-
-    def __repr__(self):
-        return '%s(%r)' % (self.__class__.__name__, str(self))
-
-    def iterhosts(self):
-        """Generate Iterator over usable hosts in a network.
-
-           This is like __iter__ except it doesn't return the network
-           or broadcast addresses.
-
-        """
-        cur = int(self.network) + 1
-        bcast = int(self.broadcast) - 1
-        while cur <= bcast:
-            cur += 1
-            yield IPAddress(cur - 1, version=self._version)
-
-    def __iter__(self):
-        cur = int(self.network)
-        bcast = int(self.broadcast)
-        while cur <= bcast:
-            cur += 1
-            yield IPAddress(cur - 1, version=self._version)
-
-    def __getitem__(self, n):
-        network = int(self.network)
-        broadcast = int(self.broadcast)
-        if n >= 0:
-            if network + n > broadcast:
-                raise IndexError
-            return IPAddress(network + n, version=self._version)
-        else:
-            n += 1
-            if broadcast + n < network:
-                raise IndexError
-            return IPAddress(broadcast + n, version=self._version)
-
-    def __lt__(self, other):
-        if self._version != other._version:
-            raise TypeError('%s and %s are not of the same version' % (
-                    str(self), str(other)))
-        if not isinstance(other, _BaseNet):
-            raise TypeError('%s and %s are not of the same type' % (
-                    str(self), str(other)))
-        if self.network != other.network:
-            return self.network < other.network
-        if self.netmask != other.netmask:
-            return self.netmask < other.netmask
-        return False
-
-    def __gt__(self, other):
-        if self._version != other._version:
-            raise TypeError('%s and %s are not of the same version' % (
-                    str(self), str(other)))
-        if not isinstance(other, _BaseNet):
-            raise TypeError('%s and %s are not of the same type' % (
-                    str(self), str(other)))
-        if self.network != other.network:
-            return self.network > other.network
-        if self.netmask != other.netmask:
-            return self.netmask > other.netmask
-        return False
-
-    def __le__(self, other):
-        gt = self.__gt__(other)
-        if gt is NotImplemented:
-            return NotImplemented
-        return not gt
-
-    def __ge__(self, other):
-        lt = self.__lt__(other)
-        if lt is NotImplemented:
-            return NotImplemented
-        return not lt
-
-    def __eq__(self, other):
-        try:
-            return (self._version == other._version
-                    and self.network == other.network
-                    and int(self.netmask) == int(other.netmask))
-        except AttributeError:
-            if isinstance(other, _BaseIP):
-                return (self._version == other._version
-                        and self._ip == other._ip)
-
-    def __ne__(self, other):
-        eq = self.__eq__(other)
-        if eq is NotImplemented:
-            return NotImplemented
-        return not eq
-
-    def __str__(self):
-        return  '%s/%s' % (str(self.ip),
-                           str(self._prefixlen))
-
-    def __hash__(self):
-        return hash(int(self.network) ^ int(self.netmask))
-
-    def __contains__(self, other):
-        # always false if one is v4 and the other is v6.
-        if self._version != other._version:
-          return False
-        # dealing with another network.
-        if isinstance(other, _BaseNet):
-            return (self.network <= other.network and
-                    self.broadcast >= other.broadcast)
-        # dealing with another address
-        else:
-            return (int(self.network) <= int(other._ip) <=
-                    int(self.broadcast))
-
-    def overlaps(self, other):
-        """Tell if self is partly contained in other."""
-        return self.network in other or self.broadcast in other or (
-            other.network in self or other.broadcast in self)
-
-    @property
-    def network(self):
-        x = self._cache.get('network')
-        if x is None:
-            x = IPAddress(self._ip & int(self.netmask), version=self._version)
-            self._cache['network'] = x
-        return x
-
-    @property
-    def broadcast(self):
-        x = self._cache.get('broadcast')
-        if x is None:
-            x = IPAddress(self._ip | int(self.hostmask), version=self._version)
-            self._cache['broadcast'] = x
-        return x
-
-    @property
-    def hostmask(self):
-        x = self._cache.get('hostmask')
-        if x is None:
-            x = IPAddress(int(self.netmask) ^ self._ALL_ONES,
-                          version=self._version)
-            self._cache['hostmask'] = x
-        return x
-
-    @property
-    def with_prefixlen(self):
-        return '%s/%d' % (str(self.ip), self._prefixlen)
-
-    @property
-    def with_netmask(self):
-        return '%s/%s' % (str(self.ip), str(self.netmask))
-
-    @property
-    def with_hostmask(self):
-        return '%s/%s' % (str(self.ip), str(self.hostmask))
-
-    @property
-    def numhosts(self):
-        """Number of hosts in the current subnet."""
-        return int(self.broadcast) - int(self.network) + 1
-
-    @property
-    def version(self):
-        raise NotImplementedError('BaseNet has no version')
-
-    @property
-    def prefixlen(self):
-        return self._prefixlen
-
-    def address_exclude(self, other):
-        """Remove an address from a larger block.
-
-        For example:
-
-            addr1 = IPNetwork('10.1.1.0/24')
-            addr2 = IPNetwork('10.1.1.0/26')
-            addr1.address_exclude(addr2) =
-                [IPNetwork('10.1.1.64/26'), IPNetwork('10.1.1.128/25')]
-
-        or IPv6:
-
-            addr1 = IPNetwork('::1/32')
-            addr2 = IPNetwork('::1/128')
-            addr1.address_exclude(addr2) = [IPNetwork('::0/128'),
-                IPNetwork('::2/127'),
-                IPNetwork('::4/126'),
-                IPNetwork('::8/125'),
-                ...
-                IPNetwork('0:0:8000::/33')]
-
-        Args:
-            other: An IPvXNetwork object of the same type.
-
-        Returns:
-            A sorted list of IPvXNetwork objects addresses which is self
-            minus other.
-
-        Raises:
-            TypeError: If self and other are of difffering address
-              versions, or if other is not a network object.
-            ValueError: If other is not completely contained by self.
-
-        """
-        if not self._version == other._version:
-            raise TypeError("%s and %s are not of the same version" % (
-                str(self), str(other)))
-
-        if not isinstance(other, _BaseNet):
-            raise TypeError("%s is not a network object" % str(other))
-
-        if other not in self:
-            raise ValueError('%s not contained in %s' % (str(other),
-                                                         str(self)))
-        if other == self:
-            return []
-
-        ret_addrs = []
-
-        # Make sure we're comparing the network of other.
-        other = IPNetwork('%s/%s' % (str(other.network), str(other.prefixlen)),
-                   version=other._version)
-
-        s1, s2 = self.subnet()
-        while s1 != other and s2 != other:
-            if other in s1:
-                ret_addrs.append(s2)
-                s1, s2 = s1.subnet()
-            elif other in s2:
-                ret_addrs.append(s1)
-                s1, s2 = s2.subnet()
-            else:
-                # If we got here, there's a bug somewhere.
-                assert True == False, ('Error performing exclusion: '
-                                       's1: %s s2: %s other: %s' %
-                                       (str(s1), str(s2), str(other)))
-        if s1 == other:
-            ret_addrs.append(s2)
-        elif s2 == other:
-            ret_addrs.append(s1)
-        else:
-            # If we got here, there's a bug somewhere.
-            assert True == False, ('Error performing exclusion: '
-                                   's1: %s s2: %s other: %s' %
-                                   (str(s1), str(s2), str(other)))
-
-        return sorted(ret_addrs, key=_BaseNet._get_networks_key)
-
-    def compare_networks(self, other):
-        """Compare two IP objects.
-
-        This is only concerned about the comparison of the integer
-        representation of the network addresses.  This means that the
-        host bits aren't considered at all in this method.  If you want
-        to compare host bits, you can easily enough do a
-        'HostA._ip < HostB._ip'
-
-        Args:
-            other: An IP object.
-
-        Returns:
-            If the IP versions of self and other are the same, returns:
-
-            -1 if self < other:
-              eg: IPv4('1.1.1.0/24') < IPv4('1.1.2.0/24')
-              IPv6('1080::200C:417A') < IPv6('1080::200B:417B')
-            0 if self == other
-              eg: IPv4('1.1.1.1/24') == IPv4('1.1.1.2/24')
-              IPv6('1080::200C:417A/96') == IPv6('1080::200C:417B/96')
-            1 if self > other
-              eg: IPv4('1.1.1.0/24') > IPv4('1.1.0.0/24')
-              IPv6('1080::1:200C:417A/112') >
-              IPv6('1080::0:200C:417A/112')
-
-            If the IP versions of self and other are different, returns:
-
-            -1 if self._version < other._version
-              eg: IPv4('10.0.0.1/24') < IPv6('::1/128')
-            1 if self._version > other._version
-              eg: IPv6('::1/128') > IPv4('255.255.255.0/24')
-
-        """
-        if self._version < other._version:
-            return -1
-        if self._version > other._version:
-            return 1
-        # self._version == other._version below here:
-        if self.network < other.network:
-            return -1
-        if self.network > other.network:
-            return 1
-        # self.network == other.network below here:
-        if self.netmask < other.netmask:
-            return -1
-        if self.netmask > other.netmask:
-            return 1
-        # self.network == other.network and self.netmask == other.netmask
-        return 0
-
-    def _get_networks_key(self):
-        """Network-only key function.
-
-        Returns an object that identifies this address' network and
-        netmask. This function is a suitable "key" argument for sorted()
-        and list.sort().
-
-        """
-        return (self._version, self.network, self.netmask)
-
-    def _ip_int_from_prefix(self, prefixlen=None):
-        """Turn the prefix length netmask into a int for comparison.
-
-        Args:
-            prefixlen: An integer, the prefix length.
-
-        Returns:
-            An integer.
-
-        """
-        if not prefixlen and prefixlen != 0:
-            prefixlen = self._prefixlen
-        return self._ALL_ONES ^ (self._ALL_ONES >> prefixlen)
-
-    def _prefix_from_ip_int(self, ip_int, mask=32):
-        """Return prefix length from the decimal netmask.
-
-        Args:
-            ip_int: An integer, the IP address.
-            mask: The netmask.  Defaults to 32.
-
-        Returns:
-            An integer, the prefix length.
-
-        """
-        while mask:
-            if ip_int & 1 == 1:
-                break
-            ip_int >>= 1
-            mask -= 1
-
-        return mask
-
-    def _ip_string_from_prefix(self, prefixlen=None):
-        """Turn a prefix length into a dotted decimal string.
-
-        Args:
-            prefixlen: An integer, the netmask prefix length.
-
-        Returns:
-            A string, the dotted decimal netmask string.
-
-        """
-        if not prefixlen:
-            prefixlen = self._prefixlen
-        return self._string_from_ip_int(self._ip_int_from_prefix(prefixlen))
-
-    def iter_subnets(self, prefixlen_diff=1, new_prefix=None):
-        """The subnets which join to make the current subnet.
-
-        In the case that self contains only one IP
-        (self._prefixlen == 32 for IPv4 or self._prefixlen == 128
-        for IPv6), return a list with just ourself.
-
-        Args:
-            prefixlen_diff: An integer, the amount the prefix length
-              should be increased by. This should not be set if
-              new_prefix is also set.
-            new_prefix: The desired new prefix length. This must be a
-              larger number (smaller prefix) than the existing prefix.
-              This should not be set if prefixlen_diff is also set.
-
-        Returns:
-            An iterator of IPv(4|6) objects.
-
-        Raises:
-            ValueError: The prefixlen_diff is too small or too large.
-                OR
-            prefixlen_diff and new_prefix are both set or new_prefix
-              is a smaller number than the current prefix (smaller
-              number means a larger network)
-
-        """
-        if self._prefixlen == self._max_prefixlen:
-            yield self
-            return
-
-        if new_prefix is not None:
-            if new_prefix < self._prefixlen:
-                raise ValueError('new prefix must be longer')
-            if prefixlen_diff != 1:
-                raise ValueError('cannot set prefixlen_diff and new_prefix')
-            prefixlen_diff = new_prefix - self._prefixlen
-
-        if prefixlen_diff < 0:
-            raise ValueError('prefix length diff must be > 0')
-        new_prefixlen = self._prefixlen + prefixlen_diff
-
-        if not self._is_valid_netmask(str(new_prefixlen)):
-            raise ValueError(
-                'prefix length diff %d is invalid for netblock %s' % (
-                    new_prefixlen, str(self)))
-
-        first = IPNetwork('%s/%s' % (str(self.network),
-                                     str(self._prefixlen + prefixlen_diff)),
-                         version=self._version)
-
-        yield first
-        current = first
-        while True:
-            broadcast = current.broadcast
-            if broadcast == self.broadcast:
-                return
-            new_addr = IPAddress(int(broadcast) + 1, version=self._version)
-            current = IPNetwork('%s/%s' % (str(new_addr), str(new_prefixlen)),
-                                version=self._version)
-
-            yield current
-
-    def masked(self):
-        """Return the network object with the host bits masked out."""
-        return IPNetwork('%s/%d' % (self.network, self._prefixlen),
-                         version=self._version)
-
-    def subnet(self, prefixlen_diff=1, new_prefix=None):
-        """Return a list of subnets, rather than an iterator."""
-        return list(self.iter_subnets(prefixlen_diff, new_prefix))
-
-    def supernet(self, prefixlen_diff=1, new_prefix=None):
-        """The supernet containing the current network.
-
-        Args:
-            prefixlen_diff: An integer, the amount the prefix length of
-              the network should be decreased by.  For example, given a
-              /24 network and a prefixlen_diff of 3, a supernet with a
-              /21 netmask is returned.
-
-        Returns:
-            An IPv4 network object.
-
-        Raises:
-            ValueError: If self.prefixlen - prefixlen_diff < 0. I.e., you have a
-              negative prefix length.
-                OR
-            If prefixlen_diff and new_prefix are both set or new_prefix is a
-              larger number than the current prefix (larger number means a
-              smaller network)
-
-        """
-        if self._prefixlen == 0:
-            return self
-
-        if new_prefix is not None:
-            if new_prefix > self._prefixlen:
-                raise ValueError('new prefix must be shorter')
-            if prefixlen_diff != 1:
-                raise ValueError('cannot set prefixlen_diff and new_prefix')
-            prefixlen_diff = self._prefixlen - new_prefix
-
-
-        if self.prefixlen - prefixlen_diff < 0:
-            raise ValueError(
-                'current prefixlen is %d, cannot have a prefixlen_diff of %d' %
-                (self.prefixlen, prefixlen_diff))
-        return IPNetwork('%s/%s' % (str(self.network),
-                                    str(self.prefixlen - prefixlen_diff)),
-                         version=self._version)
-
-    # backwards compatibility
-    Subnet = subnet
-    Supernet = supernet
-    AddressExclude = address_exclude
-    CompareNetworks = compare_networks
-    Contains = __contains__
-
-
-class _BaseV4(object):
-
-    """Base IPv4 object.
-
-    The following methods are used by IPv4 objects in both single IP
-    addresses and networks.
-
-    """
-
-    # Equivalent to 255.255.255.255 or 32 bits of 1's.
-    _ALL_ONES = (2**IPV4LENGTH) - 1
-    _DECIMAL_DIGITS = frozenset('0123456789')
-
-    def __init__(self, address):
-        self._version = 4
-        self._max_prefixlen = IPV4LENGTH
-
-    def _explode_shorthand_ip_string(self):
-        return str(self)
-
-    def _ip_int_from_string(self, ip_str):
-        """Turn the given IP string into an integer for comparison.
-
-        Args:
-            ip_str: A string, the IP ip_str.
-
-        Returns:
-            The IP ip_str as an integer.
-
-        Raises:
-            AddressValueError: if ip_str isn't a valid IPv4 Address.
-
-        """
-        octets = ip_str.split('.')
-        if len(octets) != 4:
-            raise AddressValueError(ip_str)
-
-        packed_ip = 0
-        for oc in octets:
-            try:
-                packed_ip = (packed_ip << 8) | self._parse_octet(oc)
-            except ValueError:
-                raise AddressValueError(ip_str)
-        return packed_ip
-
-    def _parse_octet(self, octet_str):
-        """Convert a decimal octet into an integer.
-
-        Args:
-            octet_str: A string, the number to parse.
-
-        Returns:
-            The octet as an integer.
-
-        Raises:
-            ValueError: if the octet isn't strictly a decimal from [0..255].
-
-        """
-        # Whitelist the characters, since int() allows a lot of bizarre stuff.
-        if not self._DECIMAL_DIGITS.issuperset(octet_str):
-            raise ValueError
-        octet_int = int(octet_str, 10)
-        # Disallow leading zeroes, because no clear standard exists on
-        # whether these should be interpreted as decimal or octal.
-        if octet_int > 255 or (octet_str[0] == '0' and len(octet_str) > 1):
-            raise ValueError
-        return octet_int
-
-    def _string_from_ip_int(self, ip_int):
-        """Turns a 32-bit integer into dotted decimal notation.
-
-        Args:
-            ip_int: An integer, the IP address.
-
-        Returns:
-            The IP address as a string in dotted decimal notation.
-
-        """
-        octets = []
-        for _ in xrange(4):
-            octets.insert(0, str(ip_int & 0xFF))
-            ip_int >>= 8
-        return '.'.join(octets)
-
-    @property
-    def max_prefixlen(self):
-        return self._max_prefixlen
-
-    @property
-    def packed(self):
-        """The binary representation of this address."""
-        return v4_int_to_packed(self._ip)
-
-    @property
-    def version(self):
-        return self._version
-
-    @property
-    def is_reserved(self):
-       """Test if the address is otherwise IETF reserved.
-
-        Returns:
-            A boolean, True if the address is within the
-            reserved IPv4 Network range.
-
-       """
-       return self in IPv4Network('240.0.0.0/4')
-
-    @property
-    def is_private(self):
-        """Test if this address is allocated for private networks.
-
-        Returns:
-            A boolean, True if the address is reserved per RFC 1918.
-
-        """
-        return (self in IPv4Network('10.0.0.0/8') or
-                self in IPv4Network('172.16.0.0/12') or
-                self in IPv4Network('192.168.0.0/16'))
-
-    @property
-    def is_multicast(self):
-        """Test if the address is reserved for multicast use.
-
-        Returns:
-            A boolean, True if the address is multicast.
-            See RFC 3171 for details.
-
-        """
-        return self in IPv4Network('224.0.0.0/4')
-
-    @property
-    def is_unspecified(self):
-        """Test if the address is unspecified.
-
-        Returns:
-            A boolean, True if this is the unspecified address as defined in
-            RFC 5735 3.
-
-        """
-        return self in IPv4Network('0.0.0.0')
-
-    @property
-    def is_loopback(self):
-        """Test if the address is a loopback address.
-
-        Returns:
-            A boolean, True if the address is a loopback per RFC 3330.
-
-        """
-        return self in IPv4Network('127.0.0.0/8')
-
-    @property
-    def is_link_local(self):
-        """Test if the address is reserved for link-local.
-
-        Returns:
-            A boolean, True if the address is link-local per RFC 3927.
-
-        """
-        return self in IPv4Network('169.254.0.0/16')
-
-
-class IPv4Address(_BaseV4, _BaseIP):
-
-    """Represent and manipulate single IPv4 Addresses."""
-
-    def __init__(self, address):
-
-        """
-        Args:
-            address: A string or integer representing the IP
-              '192.168.1.1'
-
-              Additionally, an integer can be passed, so
-              IPv4Address('192.168.1.1') == IPv4Address(3232235777).
-              or, more generally
-              IPv4Address(int(IPv4Address('192.168.1.1'))) ==
-                IPv4Address('192.168.1.1')
-
-        Raises:
-            AddressValueError: If ipaddr isn't a valid IPv4 address.
-
-        """
-        _BaseV4.__init__(self, address)
-
-        # Efficient constructor from integer.
-        if isinstance(address, (int, long)):
-            self._ip = address
-            if address < 0 or address > self._ALL_ONES:
-                raise AddressValueError(address)
-            return
-
-        # Constructing from a packed address
-        if isinstance(address, Bytes):
-            try:
-                self._ip, = struct.unpack('!I', address)
-            except struct.error:
-                raise AddressValueError(address)  # Wrong length.
-            return
-
-        # Assume input argument to be string or any object representation
-        # which converts into a formatted IP string.
-        addr_str = str(address)
-        self._ip = self._ip_int_from_string(addr_str)
-
-
-class IPv4Network(_BaseV4, _BaseNet):
-
-    """This class represents and manipulates 32-bit IPv4 networks.
-
-    Attributes: [examples for IPv4Network('1.2.3.4/27')]
-        ._ip: 16909060
-        .ip: IPv4Address('1.2.3.4')
-        .network: IPv4Address('1.2.3.0')
-        .hostmask: IPv4Address('0.0.0.31')
-        .broadcast: IPv4Address('1.2.3.31')
-        .netmask: IPv4Address('255.255.255.224')
-        .prefixlen: 27
-
-    """
-
-    # the valid octets for host and netmasks. only useful for IPv4.
-    _valid_mask_octets = set((255, 254, 252, 248, 240, 224, 192, 128, 0))
-
-    def __init__(self, address, strict=False):
-        """Instantiate a new IPv4 network object.
-
-        Args:
-            address: A string or integer representing the IP [& network].
-              '192.168.1.1/24'
-              '192.168.1.1/255.255.255.0'
-              '192.168.1.1/0.0.0.255'
-              are all functionally the same in IPv4. Similarly,
-              '192.168.1.1'
-              '192.168.1.1/255.255.255.255'
-              '192.168.1.1/32'
-              are also functionaly equivalent. That is to say, failing to
-              provide a subnetmask will create an object with a mask of /32.
-
-              If the mask (portion after the / in the argument) is given in
-              dotted quad form, it is treated as a netmask if it starts with a
-              non-zero field (e.g. /255.0.0.0 == /8) and as a hostmask if it
-              starts with a zero field (e.g. 0.255.255.255 == /8), with the
-              single exception of an all-zero mask which is treated as a
-              netmask == /0. If no mask is given, a default of /32 is used.
-
-              Additionally, an integer can be passed, so
-              IPv4Network('192.168.1.1') == IPv4Network(3232235777).
-              or, more generally
-              IPv4Network(int(IPv4Network('192.168.1.1'))) ==
-                IPv4Network('192.168.1.1')
-
-            strict: A boolean. If true, ensure that we have been passed
-              A true network address, eg, 192.168.1.0/24 and not an
-              IP address on a network, eg, 192.168.1.1/24.
-
-        Raises:
-            AddressValueError: If ipaddr isn't a valid IPv4 address.
-            NetmaskValueError: If the netmask isn't valid for
-              an IPv4 address.
-            ValueError: If strict was True and a network address was not
-              supplied.
-
-        """
-        _BaseNet.__init__(self, address)
-        _BaseV4.__init__(self, address)
-
-        # Constructing from an integer or packed bytes.
-        if isinstance(address, (int, long, Bytes)):
-            self.ip = IPv4Address(address)
-            self._ip = self.ip._ip
-            self._prefixlen = self._max_prefixlen
-            self.netmask = IPv4Address(self._ALL_ONES)
-            return
-
-        # Assume input argument to be string or any object representation
-        # which converts into a formatted IP prefix string.
-        addr = str(address).split('/')
-
-        if len(addr) > 2:
-            raise AddressValueError(address)
-
-        self._ip = self._ip_int_from_string(addr[0])
-        self.ip = IPv4Address(self._ip)
-
-        if len(addr) == 2:
-            mask = addr[1].split('.')
-            if len(mask) == 4:
-                # We have dotted decimal netmask.
-                if self._is_valid_netmask(addr[1]):
-                    self.netmask = IPv4Address(self._ip_int_from_string(
-                            addr[1]))
-                elif self._is_hostmask(addr[1]):
-                    self.netmask = IPv4Address(
-                        self._ip_int_from_string(addr[1]) ^ self._ALL_ONES)
-                else:
-                    raise NetmaskValueError('%s is not a valid netmask'
-                                                     % addr[1])
-
-                self._prefixlen = self._prefix_from_ip_int(int(self.netmask))
-            else:
-                # We have a netmask in prefix length form.
-                if not self._is_valid_netmask(addr[1]):
-                    raise NetmaskValueError(addr[1])
-                self._prefixlen = int(addr[1])
-                self.netmask = IPv4Address(self._ip_int_from_prefix(
-                    self._prefixlen))
-        else:
-            self._prefixlen = self._max_prefixlen
-            self.netmask = IPv4Address(self._ip_int_from_prefix(
-                self._prefixlen))
-        if strict:
-            if self.ip != self.network:
-                raise ValueError('%s has host bits set' %
-                                 self.ip)
-        if self._prefixlen == (self._max_prefixlen - 1):
-            self.iterhosts = self.__iter__
-
-    def _is_hostmask(self, ip_str):
-        """Test if the IP string is a hostmask (rather than a netmask).
-
-        Args:
-            ip_str: A string, the potential hostmask.
-
-        Returns:
-            A boolean, True if the IP string is a hostmask.
-
-        """
-        bits = ip_str.split('.')
-        try:
-            parts = [int(x) for x in bits if int(x) in self._valid_mask_octets]
-        except ValueError:
-            return False
-        if len(parts) != len(bits):
-            return False
-        if parts[0] < parts[-1]:
-            return True
-        return False
-
-    def _is_valid_netmask(self, netmask):
-        """Verify that the netmask is valid.
-
-        Args:
-            netmask: A string, either a prefix or dotted decimal
-              netmask.
-
-        Returns:
-            A boolean, True if the prefix represents a valid IPv4
-            netmask.
-
-        """
-        mask = netmask.split('.')
-        if len(mask) == 4:
-            if [x for x in mask if int(x) not in self._valid_mask_octets]:
-                return False
-            if [y for idx, y in enumerate(mask) if idx > 0 and
-                y > mask[idx - 1]]:
-                return False
-            return True
-        try:
-            netmask = int(netmask)
-        except ValueError:
-            return False
-        return 0 <= netmask <= self._max_prefixlen
-
-    # backwards compatibility
-    IsRFC1918 = lambda self: self.is_private
-    IsMulticast = lambda self: self.is_multicast
-    IsLoopback = lambda self: self.is_loopback
-    IsLinkLocal = lambda self: self.is_link_local
-
-
-class _BaseV6(object):
-
-    """Base IPv6 object.
-
-    The following methods are used by IPv6 objects in both single IP
-    addresses and networks.
-
-    """
-
-    _ALL_ONES = (2**IPV6LENGTH) - 1
-    _HEXTET_COUNT = 8
-    _HEX_DIGITS = frozenset('0123456789ABCDEFabcdef')
-
-    def __init__(self, address):
-        self._version = 6
-        self._max_prefixlen = IPV6LENGTH
-
-    def _ip_int_from_string(self, ip_str):
-        """Turn an IPv6 ip_str into an integer.
-
-        Args:
-            ip_str: A string, the IPv6 ip_str.
-
-        Returns:
-            A long, the IPv6 ip_str.
-
-        Raises:
-            AddressValueError: if ip_str isn't a valid IPv6 Address.
-
-        """
-        parts = ip_str.split(':')
-
-        # An IPv6 address needs at least 2 colons (3 parts).
-        if len(parts) < 3:
-            raise AddressValueError(ip_str)
-
-        # If the address has an IPv4-style suffix, convert it to hexadecimal.
-        if '.' in parts[-1]:
-            ipv4_int = IPv4Address(parts.pop())._ip
-            parts.append('%x' % ((ipv4_int >> 16) & 0xFFFF))
-            parts.append('%x' % (ipv4_int & 0xFFFF))
-
-        # An IPv6 address can't have more than 8 colons (9 parts).
-        if len(parts) > self._HEXTET_COUNT + 1:
-            raise AddressValueError(ip_str)
-
-        # Disregarding the endpoints, find '::' with nothing in between.
-        # This indicates that a run of zeroes has been skipped.
-        try:
-            skip_index, = (
-                [i for i in xrange(1, len(parts) - 1) if not parts[i]] or
-                [None])
-        except ValueError:
-            # Can't have more than one '::'
-            raise AddressValueError(ip_str)
-
-        # parts_hi is the number of parts to copy from above/before the '::'
-        # parts_lo is the number of parts to copy from below/after the '::'
-        if skip_index is not None:
-            # If we found a '::', then check if it also covers the endpoints.
-            parts_hi = skip_index
-            parts_lo = len(parts) - skip_index - 1
-            if not parts[0]:
-                parts_hi -= 1
-                if parts_hi:
-                    raise AddressValueError(ip_str)  # ^: requires ^::
-            if not parts[-1]:
-                parts_lo -= 1
-                if parts_lo:
-                    raise AddressValueError(ip_str)  # :$ requires ::$
-            parts_skipped = self._HEXTET_COUNT - (parts_hi + parts_lo)
-            if parts_skipped < 1:
-                raise AddressValueError(ip_str)
-        else:
-            # Otherwise, allocate the entire address to parts_hi.  The endpoints
-            # could still be empty, but _parse_hextet() will check for that.
-            if len(parts) != self._HEXTET_COUNT:
-                raise AddressValueError(ip_str)
-            parts_hi = len(parts)
-            parts_lo = 0
-            parts_skipped = 0
-
-        try:
-            # Now, parse the hextets into a 128-bit integer.
-            ip_int = 0L
-            for i in xrange(parts_hi):
-                ip_int <<= 16
-                ip_int |= self._parse_hextet(parts[i])
-            ip_int <<= 16 * parts_skipped
-            for i in xrange(-parts_lo, 0):
-                ip_int <<= 16
-                ip_int |= self._parse_hextet(parts[i])
-            return ip_int
-        except ValueError:
-            raise AddressValueError(ip_str)
-
-    def _parse_hextet(self, hextet_str):
-        """Convert an IPv6 hextet string into an integer.
-
-        Args:
-            hextet_str: A string, the number to parse.
-
-        Returns:
-            The hextet as an integer.
-
-        Raises:
-            ValueError: if the input isn't strictly a hex number from [0..FFFF].
-
-        """
-        # Whitelist the characters, since int() allows a lot of bizarre stuff.
-        if not self._HEX_DIGITS.issuperset(hextet_str):
-            raise ValueError
-        hextet_int = int(hextet_str, 16)
-        if hextet_int > 0xFFFF:
-            raise ValueError
-        return hextet_int
-
-    def _compress_hextets(self, hextets):
-        """Compresses a list of hextets.
-
-        Compresses a list of strings, replacing the longest continuous
-        sequence of "0" in the list with "" and adding empty strings at
-        the beginning or at the end of the string such that subsequently
-        calling ":".join(hextets) will produce the compressed version of
-        the IPv6 address.
-
-        Args:
-            hextets: A list of strings, the hextets to compress.
-
-        Returns:
-            A list of strings.
-
-        """
-        best_doublecolon_start = -1
-        best_doublecolon_len = 0
-        doublecolon_start = -1
-        doublecolon_len = 0
-        for index in range(len(hextets)):
-            if hextets[index] == '0':
-                doublecolon_len += 1
-                if doublecolon_start == -1:
-                    # Start of a sequence of zeros.
-                    doublecolon_start = index
-                if doublecolon_len > best_doublecolon_len:
-                    # This is the longest sequence of zeros so far.
-                    best_doublecolon_len = doublecolon_len
-                    best_doublecolon_start = doublecolon_start
-            else:
-                doublecolon_len = 0
-                doublecolon_start = -1
-
-        if best_doublecolon_len > 1:
-            best_doublecolon_end = (best_doublecolon_start +
-                                    best_doublecolon_len)
-            # For zeros at the end of the address.
-            if best_doublecolon_end == len(hextets):
-                hextets += ['']
-            hextets[best_doublecolon_start:best_doublecolon_end] = ['']
-            # For zeros at the beginning of the address.
-            if best_doublecolon_start == 0:
-                hextets = [''] + hextets
-
-        return hextets
-
-    def _string_from_ip_int(self, ip_int=None):
-        """Turns a 128-bit integer into hexadecimal notation.
-
-        Args:
-            ip_int: An integer, the IP address.
-
-        Returns:
-            A string, the hexadecimal representation of the address.
-
-        Raises:
-            ValueError: The address is bigger than 128 bits of all ones.
-
-        """
-        if not ip_int and ip_int != 0:
-            ip_int = int(self._ip)
-
-        if ip_int > self._ALL_ONES:
-            raise ValueError('IPv6 address is too large')
-
-        hex_str = '%032x' % ip_int
-        hextets = []
-        for x in range(0, 32, 4):
-            hextets.append('%x' % int(hex_str[x:x+4], 16))
-
-        hextets = self._compress_hextets(hextets)
-        return ':'.join(hextets)
-
-    def _explode_shorthand_ip_string(self):
-        """Expand a shortened IPv6 address.
-
-        Args:
-            ip_str: A string, the IPv6 address.
-
-        Returns:
-            A string, the expanded IPv6 address.
-
-        """
-        if isinstance(self, _BaseNet):
-            ip_str = str(self.ip)
-        else:
-            ip_str = str(self)
-
-        ip_int = self._ip_int_from_string(ip_str)
-        parts = []
-        for i in xrange(self._HEXTET_COUNT):
-            parts.append('%04x' % (ip_int & 0xFFFF))
-            ip_int >>= 16
-        parts.reverse()
-        if isinstance(self, _BaseNet):
-            return '%s/%d' % (':'.join(parts), self.prefixlen)
-        return ':'.join(parts)
-
-    @property
-    def max_prefixlen(self):
-        return self._max_prefixlen
-
-    @property
-    def packed(self):
-        """The binary representation of this address."""
-        return v6_int_to_packed(self._ip)
-
-    @property
-    def version(self):
-        return self._version
-
-    @property
-    def is_multicast(self):
-        """Test if the address is reserved for multicast use.
-
-        Returns:
-            A boolean, True if the address is a multicast address.
-            See RFC 2373 2.7 for details.
-
-        """
-        return self in IPv6Network('ff00::/8')
-
-    @property
-    def is_reserved(self):
-        """Test if the address is otherwise IETF reserved.
-
-        Returns:
-            A boolean, True if the address is within one of the
-            reserved IPv6 Network ranges.
-
-        """
-        return (self in IPv6Network('::/8') or
-                self in IPv6Network('100::/8') or
-                self in IPv6Network('200::/7') or
-                self in IPv6Network('400::/6') or
-                self in IPv6Network('800::/5') or
-                self in IPv6Network('1000::/4') or
-                self in IPv6Network('4000::/3') or
-                self in IPv6Network('6000::/3') or
-                self in IPv6Network('8000::/3') or
-                self in IPv6Network('A000::/3') or
-                self in IPv6Network('C000::/3') or
-                self in IPv6Network('E000::/4') or
-                self in IPv6Network('F000::/5') or
-                self in IPv6Network('F800::/6') or
-                self in IPv6Network('FE00::/9'))
-
-    @property
-    def is_unspecified(self):
-        """Test if the address is unspecified.
-
-        Returns:
-            A boolean, True if this is the unspecified address as defined in
-            RFC 2373 2.5.2.
-
-        """
-        return self._ip == 0 and getattr(self, '_prefixlen', 128) == 128
-
-    @property
-    def is_loopback(self):
-        """Test if the address is a loopback address.
-
-        Returns:
-            A boolean, True if the address is a loopback address as defined in
-            RFC 2373 2.5.3.
-
-        """
-        return self._ip == 1 and getattr(self, '_prefixlen', 128) == 128
-
-    @property
-    def is_link_local(self):
-        """Test if the address is reserved for link-local.
-
-        Returns:
-            A boolean, True if the address is reserved per RFC 4291.
-
-        """
-        return self in IPv6Network('fe80::/10')
-
-    @property
-    def is_site_local(self):
-        """Test if the address is reserved for site-local.
-
-        Note that the site-local address space has been deprecated by RFC 3879.
-        Use is_private to test if this address is in the space of unique local
-        addresses as defined by RFC 4193.
-
-        Returns:
-            A boolean, True if the address is reserved per RFC 3513 2.5.6.
-
-        """
-        return self in IPv6Network('fec0::/10')
-
-    @property
-    def is_private(self):
-        """Test if this address is allocated for private networks.
-
-        Returns:
-            A boolean, True if the address is reserved per RFC 4193.
-
-        """
-        return self in IPv6Network('fc00::/7')
-
-    @property
-    def ipv4_mapped(self):
-        """Return the IPv4 mapped address.
-
-        Returns:
-            If the IPv6 address is a v4 mapped address, return the
-            IPv4 mapped address. Return None otherwise.
-
-        """
-        if (self._ip >> 32) != 0xFFFF:
-            return None
-        return IPv4Address(self._ip & 0xFFFFFFFF)
-
-    @property
-    def teredo(self):
-        """Tuple of embedded teredo IPs.
-
-        Returns:
-            Tuple of the (server, client) IPs or None if the address
-            doesn't appear to be a teredo address (doesn't start with
-            2001::/32)
-
-        """
-        if (self._ip >> 96) != 0x20010000:
-            return None
-        return (IPv4Address((self._ip >> 64) & 0xFFFFFFFF),
-                IPv4Address(~self._ip & 0xFFFFFFFF))
-
-    @property
-    def sixtofour(self):
-        """Return the IPv4 6to4 embedded address.
-
-        Returns:
-            The IPv4 6to4-embedded address if present or None if the
-            address doesn't appear to contain a 6to4 embedded address.
-
-        """
-        if (self._ip >> 112) != 0x2002:
-            return None
-        return IPv4Address((self._ip >> 80) & 0xFFFFFFFF)
-
-
-class IPv6Address(_BaseV6, _BaseIP):
-
-    """Represent and manipulate single IPv6 Addresses.
-    """
-
-    def __init__(self, address):
-        """Instantiate a new IPv6 address object.
-
-        Args:
-            address: A string or integer representing the IP
-
-              Additionally, an integer can be passed, so
-              IPv6Address('2001:4860::') ==
-                IPv6Address(42541956101370907050197289607612071936L).
-              or, more generally
-              IPv6Address(IPv6Address('2001:4860::')._ip) ==
-                IPv6Address('2001:4860::')
-
-        Raises:
-            AddressValueError: If address isn't a valid IPv6 address.
-
-        """
-        _BaseV6.__init__(self, address)
-
-        # Efficient constructor from integer.
-        if isinstance(address, (int, long)):
-            self._ip = address
-            if address < 0 or address > self._ALL_ONES:
-                raise AddressValueError(address)
-            return
-
-        # Constructing from a packed address
-        if isinstance(address, Bytes):
-            try:
-                hi, lo = struct.unpack('!QQ', address)
-            except struct.error:
-                raise AddressValueError(address)  # Wrong length.
-            self._ip = (hi << 64) | lo
-            return
-
-        # Assume input argument to be string or any object representation
-        # which converts into a formatted IP string.
-        addr_str = str(address)
-        if not addr_str:
-            raise AddressValueError('')
-
-        self._ip = self._ip_int_from_string(addr_str)
-
-
-class IPv6Network(_BaseV6, _BaseNet):
-
-    """This class represents and manipulates 128-bit IPv6 networks.
-
-    Attributes: [examples for IPv6('2001:658:22A:CAFE:200::1/64')]
-        .ip: IPv6Address('2001:658:22a:cafe:200::1')
-        .network: IPv6Address('2001:658:22a:cafe::')
-        .hostmask: IPv6Address('::ffff:ffff:ffff:ffff')
-        .broadcast: IPv6Address('2001:658:22a:cafe:ffff:ffff:ffff:ffff')
-        .netmask: IPv6Address('ffff:ffff:ffff:ffff::')
-        .prefixlen: 64
-
-    """
-
-
-    def __init__(self, address, strict=False):
-        """Instantiate a new IPv6 Network object.
-
-        Args:
-            address: A string or integer representing the IPv6 network or the IP
-              and prefix/netmask.
-              '2001:4860::/128'
-              '2001:4860:0000:0000:0000:0000:0000:0000/128'
-              '2001:4860::'
-              are all functionally the same in IPv6.  That is to say,
-              failing to provide a subnetmask will create an object with
-              a mask of /128.
-
-              Additionally, an integer can be passed, so
-              IPv6Network('2001:4860::') ==
-                IPv6Network(42541956101370907050197289607612071936L).
-              or, more generally
-              IPv6Network(IPv6Network('2001:4860::')._ip) ==
-                IPv6Network('2001:4860::')
-
-            strict: A boolean. If true, ensure that we have been passed
-              A true network address, eg, 192.168.1.0/24 and not an
-              IP address on a network, eg, 192.168.1.1/24.
-
-        Raises:
-            AddressValueError: If address isn't a valid IPv6 address.
-            NetmaskValueError: If the netmask isn't valid for
-              an IPv6 address.
-            ValueError: If strict was True and a network address was not
-              supplied.
-
-        """
-        _BaseNet.__init__(self, address)
-        _BaseV6.__init__(self, address)
-
-        # Constructing from an integer or packed bytes.
-        if isinstance(address, (int, long, Bytes)):
-            self.ip = IPv6Address(address)
-            self._ip = self.ip._ip
-            self._prefixlen = self._max_prefixlen
-            self.netmask = IPv6Address(self._ALL_ONES)
-            return
-
-        # Assume input argument to be string or any object representation
-        # which converts into a formatted IP prefix string.
-        addr = str(address).split('/')
-
-        if len(addr) > 2:
-            raise AddressValueError(address)
-
-        self._ip = self._ip_int_from_string(addr[0])
-        self.ip = IPv6Address(self._ip)
-
-        if len(addr) == 2:
-            if self._is_valid_netmask(addr[1]):
-                self._prefixlen = int(addr[1])
-            else:
-                raise NetmaskValueError(addr[1])
-        else:
-            self._prefixlen = self._max_prefixlen
-
-        self.netmask = IPv6Address(self._ip_int_from_prefix(self._prefixlen))
-
-        if strict:
-            if self.ip != self.network:
-                raise ValueError('%s has host bits set' %
-                                 self.ip)
-        if self._prefixlen == (self._max_prefixlen - 1):
-            self.iterhosts = self.__iter__
-
-    def _is_valid_netmask(self, prefixlen):
-        """Verify that the netmask/prefixlen is valid.
-
-        Args:
-            prefixlen: A string, the netmask in prefix length format.
-
-        Returns:
-            A boolean, True if the prefix represents a valid IPv6
-            netmask.
-
-        """
-        try:
-            prefixlen = int(prefixlen)
-        except ValueError:
-            return False
-        return 0 <= prefixlen <= self._max_prefixlen
-
-    @property
-    def with_netmask(self):
-        return self.with_prefixlen