[Python-Dev] PEP 3144 review. (original) (raw)

"Martin v. Löwis" martin at v.loewis.de
Wed Sep 16 10:00:21 CEST 2009

I don't see any valid reason for entering a network as "192.168.1.1/24" rather than the canonical "192.168.1.0/24". The former might indicate a typing error or a mental slip, so let's be helpful and signal it to the user.

Or perhaps there can be an optional "strict=True" (or "strict=False") argument to the constructor / parsing function. If so, I hope that we'd default to strict=True.

I don't see the point of enforcing strictness here. There are good use cases: if you know your address is 82.94.164.162, how do you compute what you should spell for 82.94.164.162/27? It's very easy to make a mistake here, and doing the computation in your head is really not something that should be necessary, given that a computer can get it correct easily.

Regards, Martin

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