[Tutor] Untainting CGI parameters

[Alan G]

> I will combine Kent's and your suggestion, because he included a 
> check for an AttributeError:
>

OK, as a slightly more perl-ish solution to the no Attribute problem
you could also do this:

try:
    type = re.search('\w+', parameters['type'].value).group() or 
'page'
except KeyError:
    type = 'page'

HTH

Alan G.