[Python-Dev] [ 1673007 ] urllib2 requests history + HEAD

KoDer koder.mail at gmail.com
Tue Mar 13 11:40:53 CET 2007

> From: Facundo Batista <facundo at taniquetil.com.ar>
> This patch was posted by "koder_ua".

> I think that Request must have a "request type" parameters, so people
> can send "HEAD" requests easily.

> But it seems to me that keeping a request history in the module is bad,
> because it can easily grow up to thousands and explode (a.k.a. consume
> too much memory).

> Fo example, I have a web service, running 7x24, and opening another web
> service, with around 10 requests per second. This means, keeping the
> history (around 50bytes each request), 1.2 GB of RAM in only a month!

> So, I'll close this patch as "Rejected", for this reason, if anyone
> raises objections.

> Regards,
> --
> .   Facundo

This is probably a misunderstanding.
Request's history don't store in the "module".They store in two places:

1) In Request object (for current request, so they would be destroyеd with it);
2) In HTTPConnection object  (while request redirects). In HTTPConnection
history stores only for current served Request. Even if You use the
same HTTPConnection
for many Requests, they (HTTPConnection) clear history every time when
new Request starts.

# from httplib HTTPConnection.putrequest patched
str = '%s %s %s' % (method, url, self._http_vsn_str)
self.sended_hdrs = [str] <<< previous history die here

___Full history for all processed request didn't not stored in any place____.
KDanilov aka koder(aka koder_ua)

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