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Mon Apr 27 14:52:25 CEST 2015 · https://mail.python.org/pipermail/python-dev/2015-April/139562.html

Yury Selivanov wrote:
> I've done some experiments with grammar, and it looks like
> we indeed can parse await quite differently from yield. Three
> different options:

You don't seem to have tried what I suggested, which is
to make 'await' a unary operator with the same precedence
as '-', i.e. replace

    factor: ('+'|'-'|'~') factor | power

with

    factor: ('+'|'-'|'~'|'await') factor | power

That would allow

   await a()
   res = await a() + await b()
   res = await await a()
   if await a(): pass
   return await a()
   print(await a())
   func(arg=await a())
   await a() * b()

-- 
Greg

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