def collapse_addresses(addresses):
    """Collapse a list of IP objects.

    Example:
        collapse_addresses([IPv4Network('192.0.2.0/25'),
                            IPv4Network('192.0.2.128/25')]) ->
                           [IPv4Network('192.0.2.0/24')]

    Args:
        addresses: An iterator of IPv4Network or IPv6Network objects.

    Returns:
        An iterator of the collapsed IPv(4|6)Network objects.

    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, _BaseAddress):
            if ips and ips[-1]._version != ip._version:
                raise TypeError("%s and %s are not of the same version" % (
                                 ip, 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" % (
                                 ip, ips[-1]))
            try:
                ips.append(ip.ip)
            except AttributeError:
                ips.append(ip.network_address)
        else:
            if nets and nets[-1]._version != ip._version:
                raise TypeError("%s and %s are not of the same version" % (
                                 ip, nets[-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 iter(_collapse_addresses_recursive(sorted(
        addrs + nets, key=_BaseNetwork._get_networks_key)))
def collapse_addresses ( addresses ) : i = 0 addrs = [ ] ips = [ ] nets = [ ] for ip in addresses : if isinstance ( ip , _BaseAddress ) : if ips and ips [ - 1 ] . _version != ip . _version : raise TypeError ( "%s and %s are not of the same version" % ( ip , 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" % ( ip , ips [ - 1 ] ) ) try : ips . append ( ip . ip ) except AttributeError : ips . append ( ip . network_address ) else : if nets and nets [ - 1 ] . _version != ip . _version : raise TypeError ( "%s and %s are not of the same version" % ( ip , nets [ - 1 ] ) ) nets . append ( ip ) 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 iter ( _collapse_addresses_recursive ( sorted ( addrs + nets , key = _BaseNetwork . _get_networks_key ) ) )
Collapse a list of IP objects.

    Example:
        collapse_addresses([IPv4Network('192.0.2.0/25'),
                            IPv4Network('192.0.2.128/25')]) ->
                           [IPv4Network('192.0.2.0/24')]

    Args:
        addresses: An iterator of IPv4Network or IPv6Network objects.

    Returns:
        An iterator of the collapsed IPv(4|6)Network objects.

    Raises:
        TypeError: If passed a list of mixed version objects.