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Mon Sep 28 13:58:22 CEST 2009 · https://mail.python.org/pipermail/python-dev/2009-September/092274.html

Peter Moody wrote:
>> Assuming the Network type loses the notion of a specific host (or host address,
>> or `ip`) attached to it, yes.
> 
> this is "less useful (strictly removing functionality)" and is an
> example of what I explicitly said I was not going to do with ipaddr.

A possible compromise then:

Just change the definition of network equality to only consider the
network address and ignore the ip attribute. Optionally provide a
separate comparison method that pays attention to the ip attribute
(keeping in mind that it isn't particularly hard for people to write out
"net1 == net2 and net1.ip == net2.ip" if they care about the extra state).

Then "IPNetwork" can be largely documented as a true IP network
definition, with the "Host with Netmask" use case handled by having an
IPNetwork object with "net.ip != net.network".

Regards,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
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[Python-Dev] PEP 3144 review.