[Zope] Python script: problem with session

[p.t.]

Fine, Chris.
I'll try your suggestion exactley in the way you wraite it down.
I've already tryied this:

context.REQUEST['foo'] = context.REQUEST.SESSION['foo'].copy()

but (suprisingly) not working (and no error issue).
Things work fine "renaming" objects, like:

Initialise:
context.REQUEST.SESSION['FOO'] = foo

Assign:
context.REQUEST['foo'] = context.REQUEST.SESSION['FOO']

but this is quite impratical, because I'm often using indirect naming via 
the Zope function getitem().
Thanks,
         p.t.

At 10:01 12/06/2002 -0400, Chris McDonough wrote:
>I see... when you hold a reference to a dictionary in two places you
>are holding a reference to the same object, therefore changes made
>via one reference are reflected when you take a look at the object
>via the other reference.
>
>One way to avoid this in your case in a Python Script:
>
>d = context.REQUEST.SESSION['foo']
>REQUEST['foo'] = d.copy()
>
>In other words, don't assign the value of SESSION['foo'] to
>REQUEST['foo'], rather assign a copy.
>
>----- Original Message -----
>From: "p.t." <p.training@tin.it>
>To: "Chris McDonough" <chrism@zope.com>
>Cc: <zope@zope.org>
>Sent: Wednesday, June 12, 2002 9:41 AM
>Subject: Re: [Zope] Python script: problem with session
>
>
> > Chris,
> > it is a mapped object (a dictionary).
> > A closer view is:
> >
> > First (in a calling procedure) I put in
> > SESSION[processID]['status']['dataTable'] the name of a table.
> > Then (in the called procedure) I retrieve this name to the current
>status:
> > REQUEST['status'] = SESSION[processID]['status']
> >
> > REQUEST['status'] can change some values before calling back the
>caller.
> > TIA,
> >          p.t.
> >
> > At 09:10 12/06/2002 -0400, Chris McDonough wrote:
> > >What kind of object does REQUEST['foo'] return?
> > >
> > >On Wed, 2002-06-12 at 08:43, p.t. wrote:
> > > > I did already post this with a different thread: probably the
>formulation
> > > > was to complex. Or may be there is some very basic knowledge
>I'm missing.
> > > > I'll try again.
> > > >
> > > > If I assign to variable in a Python script (say
>context.REQUEST['foo']) a
> > > > value stored in SESSION (say context.SESSION['foo']), and then
>I change
> > > the
> > > > retrieved value (the one in REQUEST, not the original one),
>also the
> > > > variable in SESSION is changed. In this way I have lost my
>original
> > > > information stored in SESSION!
> > > >
> > > > I've tryied to avoid this, but I can't manage to find how.
> > > > Any suggestion?
> > > >
> > > > TIA,
> > > >       p.t.
> > > >
> > > >
> > > >
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>
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