[Python-Dev] Adding a conditional expression in Py3.0

Greg Ewing greg.ewing at canterbury.ac.nz
Wed Sep 21 03:30:54 CEST 2005


Guido van Rossum wrote:
> I think if we go with (if ... then ... else ...) or (if ...:
> ... else: ...) we'll have to support elif as well:
>> (if ... then ... elif ... then ... else ...)
> or
> (if ...: ... elif ...: ... else: ...)

One nice thing about "x if b else y" is that it
chains without needing any more keywords:
 x if b else y if c else z
But if you require parens, it's not so nice:
 (x if b else (y if c else z))
-- 
Greg Ewing, Computer Science Dept, +--------------------------------------+
University of Canterbury,	 | A citizen of NewZealandCorp, a	 |
Christchurch, New Zealand	 | wholly-owned subsidiary of USA Inc. |
greg.ewing at canterbury.ac.nz	 +--------------------------------------+


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