[Python-Dev] conditional expressions - add parens?
aleaxit at gmail.com
Tue Mar 7 16:42:29 CET 2006
On Mar 7, 2006, at 7:29 AM, Steve Holden wrote:
>> In fact, I think the below examples are reasonable uses
>> that do a better job of expressing intent than the if
>> statement would. I just don't like the mental backtrack
>> they require, and would like some sort of advance
>> warning. Parentheses at least tell me "You're not done
>> yet; keep reading."
>>>>> ack(r,r) if r not in cache
>>>>> log(message) if error_flag
> I think you've misunderstood the nature of the change. HTe new
> conditionals are *expressions*, they aren't postfix conditionals for
Right, but the only effect of that on the examples is that they both
need an 'else None' continuation or thereabouts.
I also predict widespread over-use of the new toy and agree with Jim
that mandatory parentheses around the whole (X if Y else Z) construct
would ameliorate legibility a bit.
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