On Tue, 15 Sep 2009 at 14:16, Scott Dial wrote:
In other words, I don't see why obtaining a host address would *not*
retain the hostmask from the network it was obtained from. I am not
disagreeing with it being an individual address. I am disagreeing that
IPNetwork itself already does represent individual addresses (hence my
aliasing it with IPAddressWithNetwork). And wrt, the logical return
would be another IPAddressWithNetwork retaining the same mask.
In other other words, maybe we have three data types:
IPv4Address
IPv4AddressWithMask
IPv4Network
Where myAddressWithMask.network would return an IPv4Network object,
and an IPv4Network object would always have the zero of the network
as its representation:
x = IPv4AddressWithMask('192.168.1.1/24')
x.network == IPv4Network('192.168.1.0/24')
x.network[1] == x
In this scheme, IPv4Network('192.168.1.1/24') would raise a ValueError.
Although you could probably have what I called IPv4AddressWithMask be
called IPv4Address, and have what is now IPv4Address just have
netmask and network attributes of None.
If this were done, I would expect IPv4Network.network to be either
an attribute error or return self.
--David
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