[Python-Dev] _socket efficiencies ideas (original) (raw)

Jack Jansen Jack.Jansen@oratrix.com
Wed, 9 Apr 2003 23:33:14 +0200

On woensdag, apr 9, 2003, at 16:40 Europe/Amsterdam, Sean Reifschneider wrote:

On Thu, Apr 10, 2003 at 12:24:45AM +1000, Anthony Baxter wrote:

Ick ick. This is putting a bunch of code for a stub resolver into python. This stuff is hard to get right - I implemented this on top of pydns, and it was a lot of work to get (what I think is) correct, for not very much gain. Well, ideally you'd cache the data for as long as the SOA says to cache it. However, it sounds like in the situation that started this thread, even caching that data for some small but configurable number of seconds might help out.

I wouldn't touch caching with a ten foot pole here: Python cannot know what happens under the hood of the network. For example, if I move my WiFi-equipped laptop from one location to another I don't want to be forced to restart my Python applications just to clear some silly cache, knowing that the OS and libc layers have handled the switch fine.

(And, yes, Windoze-users are probably required to reboot anyway, but my Mac handles changing IP addresses just nicely:-)