Quick survey: locals in comprehensions (Python 3 only)

[Antoon Pardon]

On 26-06-18 11:22, Steven D'Aprano wrote:
> On Tue, 26 Jun 2018 10:20:38 +0200, Antoon Pardon wrote:
>
>>> def test():
>>>     a = 1
>>>     b = 2
>>>     result = [value for key, value in locals().items()]
>>>     return result
> [...]
>
>> I would expect an UnboundLocalError: local variable 'result' referenced
>> before assignment.
> Well, I did say that there's no right or wrong answers, but that 
> surprises me. Which line do you expect to fail, and why do you think 
> "result" is unbound?

I would expect the third statement to fail because IMO we call the locals
function before result is bound. But result is a local variable so the
locals function will try to reference it, hence the UnboundLocalError.

-- 
Antoon Pardon.