[mod_python] Session management

Chris Jackson christopher.jackson at gmail.com
Tue Jan 11 18:29:43 EST 2005

Thanks.  Yes, I'm experimenting with it now.  

~= Chris =~

On Wed, 12 Jan 2005 00:14:36 +0100, Manfred Stienstra
<manfred.stienstra at dwerg.net> wrote:
> On Tue, 2005-01-11 at 16:23 -0500, Chris Jackson wrote:
> > My goal is to allow the creation of multiple, separate sessions, as
> > well as create global variables which all sessions have access to.
> > I'm having trouble understanding how to use mod_python.Session even
> > after looking at the available documentation.  In particular, i'm
> > concerned with where to put "sess = Session(req)."
> Somewhere in your handler, but not outside the handler function.
> > I'm a little fuzzy on the memory space or variable scoping.  Apache
> > runs multiple threads, and there's a single embedded python
> > interpreter.  When multiple requests from different locations hit my
> > mod_python page, all these requests get processed under the same
> > interpreter?  I want to use sessions because I think some of the data
> > is being overlapped/shared between different requests, but I want data
> > to be rationed out in sessions and some data still shared between
> > sessions such as a database connection object.
> Depending on what type of apache configuration you run, one or more
> interpreters will be used. Sometimes interpreters die and new ones get
> created. The general assumption is dat you will never get the same
> interpreter. If you want to keep objects on an interpreter, you have to
> create them in the scope of the interpreter (so outside any functions).
> Word of caution: don't put things like file objects or database objects
> in the session object. You never know when someone created a new
> request, so that object might not be valid any more.
> More on this:
> http://www.modpython.org/FAQ/faqw.py?req=show&file=faq03.018.htp
> For your database needs:
> http://www.modpython.org/FAQ/faqw.py?req=show&file=faq03.003.htp
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