Should we deprecate comma?

[Russel Winder]

On Mon, 2014-03-24 at 13:00 +0000, w0rp wrote:
[…]
> 
> Consider the following.
> 
> >>> (1, 2)
> 
> (1, 2)
> 
> >>> (1)
> 
> 1
> 
> >>> (1 * (3 * 4,))
> 
> (-1, )
> 
> >>> (1 * (3 - 4,) * 2)
> 
> (-1, -1)
> 
> >>> foo = lambda : 3
> 
> >>> (
> ...     foo()
> ... )
> 
> 3
> 
> >>> (
> ...     foo(),
> ... )
> 
> (3, )
> 
> I see this kind of confusion happen often, and the convenient 
> syntax becomes a burden.

The moral of the story is that if you want to avoid the situation Python
is in, then do not use ( and ) as delimiters for expressions and also
something else semantically different.
 
-- 
Russel.
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