Hi Zopistas while trying to make gtk's (very useful) Boring Product (slightly more) interesting, I came across the following (for me) strange behaviour. manage_ methods seem to always have "REQUEST=None" as their last parameter. If I remove the "=None" from manage_edit then I notice no difference, so the actual parameter is presumably being passed. However if remove the complete formal parameter (and the reference to REQUEST in the body of the method) def manage_edit(self, title): """does this really need a doc string?""" self.title = title # if REQUEST is not None: # return MessageDialog( # title = 'Edited', # message = "Properties for %s changed." % self.id, # action = './manage_main', # ) then everything still works ! Why is python not complaining about a parameter mismatch ? I promise to publish a Howto on making Boring more Interesting when this madness is over. Thanks in advance Mark -- BOSCH Telecom - UC-PN/ECC1 - Kleyerstr. 94 - D-60326 Frankfurt a M fon:+49 69 7505-6346 mailto:mark.andrew@fr.bosch.de fax:+49 69 7505-6168 http://SoftTech.fr.bosch.de (Bosch Only)