[Python-Dev] PEP 3144 review.

Eric Smith eric at trueblade.com
Thu Sep 17 00:04:32 CEST 2009


"Greg Ewing" <greg.ewing at canterbury.ac.nz> wrote:

>Nick Coghlan wrote:
>> Or, to put it another way, given an arbitrary host in a network (e.g.
>> your own machine or the default gateway) and the netmask for that
>> network, calculate the network address.
>Some people have claimed that the gateway address of a
>network isn't necessarily the zero address in that network.
>If that's true, then you *can't* calculate the network
>address from a host address and a netmask -- there isn't
>enough information. Furthermore, an IPNetwork object
>needs to be able to represent a network address whose
>address part contains bits that aren't in the mask.

I don't see why that would be considered a network address, then. It sounds to me like that's a host address plus a netmask.

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