unboundlocalerror with cgi module

[Fredrik Lundh]

"David Bear" wrote:

> I'm attempting to use the cgi module with code like this:
>
> import cgi
> fo = cgi.FieldStorage()
> # form field names are in the form if 'name:part'
> keys = fo.keys()
> for i in keys:
>         try:
>                 item,value=i.split(':')
>         except NameError, UnboundLocalError:
>                 print "exception..."
>                 item,value=(None,None)
> return(item,value)
>
> However, the except block does not seem to catch the exception and an
> unboundlocalerror is thrown anyway. What am I missing?

why on earth do you expect a string split to result in either a NameError
or an UnboundLocalError ?  (both of which signify *programming* errors,
most likely in *your* code, and should be fixed rather than ignored)

</F>