(a==b) ? 'Yes' : 'No'

Steve Holden steve at holdenweb.com
Thu Apr 1 18:44:35 CEST 2010


Den wrote:
[...]
> I've been following this thread for a few days now.  My thoughts are
> that, in view of a long known widely used syntax for this operator,
> python's syntax seems like change for change sake.  If current
> programing paradigm provides that particular trinary operator, why
> should python's be different from the previously well known one.
> 
Because the "long known widely used syntax" has been responsible for
some of the most incomprehensible and buggy code in the known universe. \
> For instance, no reasonable language designer would, now, use post-fix
> (I know about Forth) or allow only +=, -=, /=, etc. assignments ONLY.
> (Just as no reasonable car designer would put the accelerator pedal on
> the left.)  There are conventions which should span products.  Yes
> python has the trinary operator and it's not going to change, but this
> seems like a bit of petulance on the part of the designer.
> 
That argument could easily be extended to suggesting that there should
be no new languages at all. Guido made the specific choice of this
syntax precisely to try and ensure that the ternary (not trinary)
operator wasn't abused the way it has been in C (and later C#). He is a
language designer with a fine sense of readability, and I personally
respect his decision.

This StackOverflow thread

http://stackoverflow.com/questions/1763543/ternary-operator-associativity-in-c-can-i-rely-on-it

is just one example of the time that gets wasted.

But then I suppose that this thread just exemplifies that people will
find something else to waste their time on if you don't encourage them
to abuse the ternary operator.

regards
 Steve
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