Le mardi 13 février 2007 01:36, Barry Warsaw a écrit :
> On Feb 12, 2007, at 7:32 PM, Guido van Rossum wrote:
> > Oh, now I am definitely in favor of .[]! I read it in gmail in FireFox
> > which uses a small variable-pitch font whose dot is a single pixel.
> > The .() example was hard to find; the .[] jumped out immediately.
> > (When do you ever see self[anything]?)
>
> Raymond's -> suggestion was nice.
>
I really dislikes the .[ or .( or .{ operators.
Just on my mail editor the two expressions
a.[b]
and
a,[b]
are quite hard to differentiate while completely unrelated.
Why did the brace syntax wasn't even discussed ? Seems clean to me.
obj{expr} can be read as "given obj as a namespace, retrieve the name
resulting by expr in obj and enclosing namespaces (supers)".
We can even use slice-like syntax for further improvements :
obj{expr:default}
obj{expr:default:type_}
something like getattr(super(type_, obj), expr, default), or even
obj{expr::}
for getattr(super(obj.__class__, obj), expr)
and, why not, even obj{:} for super(obj.__class__, obj),
regards,
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