cgi form handler question

[jmdeschamps]

Peter Hansen <peter at engcorp.com> wrote in message news:<3E9158CA.C53791E5 at engcorp.com>...
> Ian Bicking wrote:
> > 
> > > the user forgets to input his email and age
> > > how would i write a for loop to output:
> > >
> > > email
> > > age
> >
> > You'd have to define the fields you required, like:
> > 
> > requiredFields = ['name', 'email', 'address', 'age', 'salary']
> > for field in requiredFields:
> >     if not form.has_key(field):
> >         print field
> > 
> > Or you might be able to do:
> > 
> > for name in form.keys():
> >     if not form[name].value:
> >         print name
> 
> The latter suggestion won't usually work, as the data sent
> from the browser does not even contain the names of the fields
> which are left empty. 
> 
> -Peter

...left empty, -unless you use the form
cgi.FieldStorage(keep_blank_values = 1) to get your form info as in
http://www.python.org/doc/current/lib/node297.html

and as someone else might have said, 'Happy CGI-ing',

Jean-Marc