Paulo da Silva <[EMAIL PROTECTED]> wrote:
> Alex Martelli escreveu:
> > Paulo da Silva <[EMAIL PROTECTED]> wrote:
> ...
>
> >
> > E.g.:
> >
> > class C1(object):
> > def __new__(cls, xxx):
> > if xxx: return type.__new__(cls, xxx)
> > else: return C1.load(xxx)
> > @staticmethod
> > def load(xxx): return ...whatever...
> > def __init__(self, xxx):
> > if hasattr(self, 'foo'): return
> > self.foo = 'foo'
> > self.bar = 'bar'
> >
>
>
> Just for a better understanding ...
> Can I do this?
>
> class C1(object):
> def __new__(cls, xxx):
> if xxx:
> cls.foo='foo'
> cls.bar='bar'
> return type.__new__(cls, xxx)
> else:
> return C1.load(xxx)
> @staticmethod
> def load(xxx): return ...whatever...
> # OMMIT THE __init__
> # or
> def __init__(self, xxx):
> pass
Yes (omitting the __init__ is better than having it empty), but why do
you want to alter the class object itself, rather than the INSTANCE
you're returning?
I suspect what you really want to do is rather
if xxx:
newobj = type.__new__(cls)
newobj.foo = 'foo'
newobj.bar = 'bar'
return newobj
else ...etc etc...
altering the _instance_ and not the _class_ itself.
Alex
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