[Python-Dev] conditional expressions?

[Greg Ewing]

Guido:

> Someone else:
>
> > I was its only fan within PythonLabs, and I was lukewarm.  The trick is to
> > view "if c else" as a new short-circuiting infix binary operator (for each
> > c), and then it makes great-- even elegant --sense.

I think it makes sense in its own right -- no need for
"tricks".

> Also I believe it would create a parsing problem in list
> comprehensions;
>
> [x for x in range(10) if small else range(100)]

Parentheses would need to be required in that case:

  [x for x in (range(10) if small else range(100))]

I don't see that as a big problem -- wanting to put a conditional 
expression in that position is going to be fairly rare.

Greg Ewing, Computer Science Dept, +--------------------------------------+
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