Actually, it does exist as I mentioned in my original message. If it did
not exist, then <dtml-var "REQUEST.SESSION"> would yield a value of None
for it. Also, if this were the case, then simply changing the name of the
variable would not solve the problem.
On Thu, 28 Apr 2005, Andreas Jung wrote:
> --On Donnerstag, 28. April 2005 13:44 Uhr -0400 Asad Habib
> <[EMAIL PROTECTED]> wrote:
> > I have a session variable called 'undergraduateProjectsDirected' that I
> > declare using the following syntax:
> > <dtml-call "REQUEST.SESSION.set('undergradProjectsDirected', [ ])">
> > When I try to append items to this list variable, I get the following
> > error:
> > AttributeError: 'NoneType' object has no attribute 'append'
> > I know for a fact that this variable exists since flushing the SESSION
> > attribute of the REQUEST variable using <dtml-var "REQUEST.SESSION">
> > yields its name and shows that it is initially empty.
> > I am using the following statement to append items:
> > <dtml-call
> > "(REQUEST.SESSION.get('undergraduateProjectsDirected')).append([student_n
> > ame, description])">
> > The strange thing is that when I change the name of this variable to
> > 'undergradProjectsDirected', the error does not occur anymore.
> Check the spelling of your session key! Of course you're getting an
> error when you are trying to append to something that does not exist.
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