Am I missing something with Python not having interfaces?

[Daniel Marcel Eichler]

Am Freitag 09 Mai 2008 10:19:45 schrieb Bruno Desthuilliers:

> >> very often sees do-nothing catch-all try/catch blocks in Java -
> >> which is way worse than just letting the exception propagate. I
> >> find all this totally pointless, because there's just no way for a
> >> compiler to check if your code is logically correct.
> >
> > But it's enough if the called method exists and returns the correct
> > type. At least it prevents a crash.
>
> Then providing an appropriate default in the base class is enough
> too.

Only working *if* there is a base-class, and not only convention for 
should-have-methods.

> >>> That's the point. Interfaces garantee that a duck is a duck, an
> >>> not only a chicken that quack.
> >>
> >> Who cares if it's a chicken as long as it quacks when you ask her
> >> to ? Now *This* is the whole point of chicken^Mduck typing, isn't
> >> it ?-)
> >
> > Ducks can also swim and fly.  And if you need a really duck,
>
> If you're code expects something that quacks, swims and flies,
> anything that quacks, swims and flies is ok. You just don't care if
> it's a duck or a flying whale with a quacking device tied to it.

Not the point.

> > Of course, in the practical world that all doesn't  matter. But in
> > the theoretical world of the big coding farms, called business,
> > that's one cornerstone of success, in the tinking of managers and
> > so.
>
> Sorry, I live in a very practical world - and we're by no mean
> running out of business here...

Like i said.