[Python-Dev] _socket efficiencies ideas
Wed, 9 Apr 2003 06:48:48 -0600
On Tue, Apr 08, 2003 at 10:50:50AM -0400, Guido van Rossum wrote:
>Are you sure that it tries make a DNS call even when the address is
>pure numeric? That seems a mistake, and if that's really happening, I
My first thought is that there should be a local DNS cache on the
machine that is running these apps. My second thought is that Python
could benefit from caching some lookup information...
>address is purely numeric. I'd be happy to see a patch that
>intercepts addresses of the form \d+\.\d+\.\d+\.\d+ and parses those
>without calling getaddrinfo().
It's not quite that easy. Beyond the IPV6 issues mentioned elsewhere,
you'd also want to check "\d+.\d+" and "\d+\.\d+\.\d+". IP addresses
will fill in missing ".0"s, which is particularly handy for accessing
"127.1", which gets expanded to "127.0.0.1".
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