I use cached dns lookups with pdnsd on my ubuntu machine to speed up web access as regular lookups can take 15-30 seconds. However, python's mechanize and urllib etc use socket.getaddrinfo, which seems not to be using dns cacheing or taking a long time because of ipv6 lookups. In either case, I subsequent access to the same site to be fast and not require lengthy calls to getaddrinfo. How can I get python to correctly use cached dns lookups and ipv4 only (at least in those cases where it is appropriate). As mentioned here: http://stackoverflow.com/questions/2014534/force-python-mechanize-urllib2-to-only-use-a-requests/2035686#2035686 It seems that many python libraries are hardcoded to look for both ipv6 and ipv4. Since ipv6 lookups are extremely slow at least for some users, perhaps the devs should carry over these optional arguments to higher level libraries like mechanize, urllib, httplib etc. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.python.org/pipermail/python-dev/attachments/20110707/aa5fdb96/attachment.html>
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