[Python-Dev] Trinary Operators

[Guido van Rossum]

> If this is just for fun, why stop with just "trinary"?

(Which BTW is a non-word; the correct term is "ternary".)

> How about one of the following (depending on ease of parsing)?
> These look even more like list comprehension.
> 
>   x = (e1 if c1        e2 if c2        e3 if c3  ...  else d)

Doesn't parse.  The concatenation of two expressions is not
always distinguishable from a single expression: consider c1 = f and
c2 = (1, 2).

>   x = (e1 if c1  else  e2 if c2  else  e3 if c3  ...  else d)

That works.

--Guido van Rossum (home page: http://www.python.org/~guido/)