For review: PEP 308 - If-then-else expression

[Erik Max Francis]

Anthony Baxter wrote:

> > We could then also have one for ints rather than bools:
> >
> >         i -> [ v_0, v_1, v_2, ... ]
> > which would pick v_i and evaluate that.
> 
> On the other hand, I don't like this. If you need to do something like
> this, why not just
> 
>           [ v_0, v_1, v_2, ... ][i]  ?

Lazy evaluation.

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