Re: [SQLObject] another question on list special methods..

[Nick <ni...@dd...>]

"for .. in" uses __getitem__, which must raise IndexError to stop the
iteration.

Nick

On Tue, 2003-05-20 at 11:12, Bud P.Bruegger wrote:
> Sorry, I wasn't clear.  I need something for the iteration ('in' and
> 'for').  I have since read up a litte and it seems I need __iter__
> (see http://www.python.org/doc/current/ref/sequence-types.html).
> 
> What kind of surprises me is that the built in lists (as in type([]))
> don't have an __iter__ method but are a prime example for supporting
> the "in" loop...  Maybe a leftover of older python versions...
> 
> --b
> 
> On 20 May 2003 10:43:58 -0500
> Nick <ni...@dd...> wrote:
> 
> > I assumed wrong.  Looks like __getitem__ is what you want.
> > 
> > Nick
> > 
> > On Tue, 2003-05-20 at 07:04, Bud P.Bruegger wrote:
> > > and as a followup:
> > > 
> > > Of particular magic to me is what happends here:
> > > 
> > > for item in myList:
> > >    print item
> > > 
> > > I frankly haven't a clue what secial method to override to get control
> > > over what is returned as items...
> > > 
> > > any idea?
> > > 
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