[Python-Dev] PEP 3144: IP Address Manipulation Library for the Python Standard Library

[Antoine Pitrou]

Le Tue, 18 Aug 2009 13:00:06 -0700, Peter Moody a écrit :
> Howdy folks,
> 
> I have a first draft of a PEP for including an IP address manipulation
> library in the python stdlib. It seems like there are a lot of really
> smart folks with some, ahem, strong ideas about what an IP address
> module should and shouldn't be so I wanted to solicit your input on this
> pep.

When you say :

« the results of the first computation should be cached and only
re-generated should the object properties change »

does it mean that the objects are mutable? Would it make sense to make 
them immutable and therefore hashable (such as, e.g., datetime objects)?