[Zope] Tal:condition problem

[Chris Withers]

zope wrote:
>  exceptions.KeyError on id in "<PythonExpr request.form['id'] == 't' or
> nothing>"
> -------------------------------------------------------^
> Could you tell me how I can rewrite this so that the first time the page is
> loaded even if there is no value for "id" the page will be shown .
> And only if I pass a form variable it should execute.

Try replacing "request.form['id'] == 't' or nothing" with:

request.form.get(id')=='t'

cheers,

Chris