[Python-Dev] PEP 3144 review.

[Dj Gilcrease]

Ok updated patch so it meets the following conditions

>>> IPv4Network(192.168.1.1/24)
IPv4Network(192.168.1.0/24)

>>> x = IPv4Network('192.168.1.1/24')
>>> y = IPv4Network('192.168.1.0/24')
>>> x == y
True
>>> hash(x) == hash(y)
True

The ip you instantiated the Network with is still accessible though, so
>>> x.ip
IPv4Address('192.168.1.1')
>>> y.ip
IPv4Address('192.168.1.0')

I left it this way since there seems to be conflicting opinions on if
this should exist in the Network object or not

http://codereview.appspot.com/124057