[Python-ideas] Globalize lonely augmented assignment

[Greg Ewing]

Georg Brandl wrote:

> Yes, but why does that make the current semantics broken?

The current semantics perversely make certain code useless
that would otherwise have an obvious and useful interpretation.
Maybe "suboptimal" would be a better adjective.

 >Am 12.06.2010 21:40, schrieb Bruce Frederiksen:
 >>
>>    def foo():
>>        # without an assignment to 'a', this is currently always an error!
>>        # it can only make sense if 'a' is global!
>>        a += 7
>>
>>If you can't do that, then this is a bug!
> 
> Yes, it is a bug -- a bug in your code.

But if the programmer intended a to be global, the *only*
reason it's a bug is the current somewhat arbitrary
interpretation placed on the augmented assignment.

-- 
Greg