[Python-Dev] PEP 492 vs. PEP 3152, new round

[Yury Selivanov]

On 2015-04-29 5:12 AM, Greg Ewing wrote:
> Yury Selivanov wrote:
>> Looking at the grammar -- the only downside of the current approach 
>> is that
>> you can't do 'await await fut'.  I still think that it reads better with
>> parens.  If we put 'await' to 'factor' terminal we would allow
>>
>>     await -fut  # await (-fut)
>
> Is there really a need to disallow that? It would take
> a fairly bizarre API to make it meaningful in the first
> place, but in any case, it's fairly clear what order
> of operations is intended without the parens.

Greg, if grammar can prevent this kind of mistakes - it should.
I like my current approach.

Yury