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Date: Fri, 18 Oct 2013 13:19:07 +0200
From: =?UTF-8?B?SsOpcsO0bWU=?= <jerome@jolimont.fr>
To: python-list@python.org
Subject: Re: urllib2 timeout issue
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Thu, 17 Oct 2013 15:55:06 +0200
Ervin Heged=C3=BCs a =C3=A9crit:

> Has your router/modem any HTTP proxy feature? If yes, maybe the
> proxy gives the late answer.

I don't think so. I didn't find anything like this in the config.
=20
> Anyway, if you don't have proxy, and the DNS error cames from
> local system, you can try to decrease it via resolv.conf:
>=20
> nameserver 1.2.3.4
> options timeout:2
>=20
> It's just an idea... but maybe...
>
> Note that the 2 seconds for DNS timeout in resolv.conf may sound crazy,
> because the _real_slow_ DNS answers will be timeouted for any
> application - just take a test with it.

Yes. See my former message :

> I found this on my server's config:
>=20
> options timeout:1
>=20
> I added it to /etc/resolv.conf on my Pi and PC and I get a much shorter
> timeout, yet still longer than the value I enter, longer than I expect, a=
nd
> longer that what I have on other machines (instantaneous).
>=20
> But at least I see something happening.

This was not a really satisfying solution.

Besides, I'd rather solve the issue in the software, so that it works
anywhere without the user having to play with DNS config and all. Even if t=
he
discussion on my DNS config is interesting, my question was about
urllib2.urlopen() timeout. I thought the timeout parameter was meant to
escape those long delays. Apparently, it is not.

According to this SO topic:

http://stackoverflow.com/questions/14127115/python-2-6-urlib2-timeout-issue

urllib2 does not do that.

Some workarounds are suggested.

Perhaps the simplest solution for me would be to create my own urlopen()
function, that would call urllib2's, and add a timeout in there.

I don't get the logic, here. I would call it a bug in urllib2, but I won't
allow myself to do that until I've understood the explanation on SO.

--=20
J=C3=A9r=C3=B4me