Python Macros
Jacek Generowicz
jacek.generowicz at cern.ch
Wed Oct 6 03:13:23 EDT 2004
Richard Blackwood <richardblackwood at cloudthunder.com> writes:
> Andrew Dalke wrote:
>
> > Jacek Generowicz wrote:
> >
> >> _Most_ object-oriented languages support object orientation via the
> >> message passing paradigm. Python included.
> >
> >
> > Translating the Smalltalk notation to Python -- what are
> > the messages? Is it that
> >
> > x.y(z)
> >
> > means "send the __call__ (z)" message to the result of
> > the "z __getattr__ 'y'" message?
> >
> > Andrew
> > dalke at dalkescientific.com
>
> In ObjC it would be send the message y with value z to object X
> Say X doesn't know what to do with y
> specified in X's code are instruction that tell it what object to pass
> the message y to...say...U for example
>
> So the message has been passed and basically translates into U.y(z) or
> in ObjC [U y:z]
You mean some refinement of this sort of thing:
class X(object):
a = "lives in X"
def __getattr__(self, name):
return getattr(U,name)
class U(object):
b = "lives in Y"
x = X()
print x.a
print x.b
?
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