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

[Evan]

Jamie Guinan wrote:
> Generally, the syntax (including result) would be:
> 
>    <result> = case:
>        <cond1>:
>            <expr1>
>         <cond2>:
>            <expr1>
>         ...
>         <condN>:
>            <exprN>
> 
> If it falls of the end, the result is None.

This is a pretty unlikely candidate for a keyword, since it even appears 
in the standard libraries, and using indentation in an expression is 
probably a non-starter too.  I've been pushing a somewhat similar idea, 
with several possibilities for syntactic details:

(if cond1: expr1 elif cond2: expr2 ... else: exprN)
{if cond1: expr1, cond2: expr2, ... 1: exprN}
if:(cond1, expr1, cond2, expr2, ..., exprN)

In any case, existing conditional keyword(s) + grouping delimiters to 
help the parser (and the reader).

Cheers,

Evan @ 4-am