22 Nov
2017
22 Nov
'17
8:08 a.m.
On 22 November 2017 at 16:56, Yury Selivanov
On Wed, Nov 22, 2017 at 10:10 AM, Ivan Levkivskyi
wrote: On 22 November 2017 at 15:47, Paul Moore
wrote: [...] I'm all for prohibiting using 'yield' expression in generator expressions or comprehensions. The semantics is way to hard to understand and hence be of any value. Making 'await' a SyntaxError is absolutely not an option. Async generator expressions are a shorthand syntax for defining asynchronous generators (PEP 525), and it's already being used in the wild.
OK, makes sense, so it looks like we may have the following plan: - fix `yield` in comprehensions - update PEP 530 and docs re generator expressions vs comprehensions - make `yield` in generator expressions a SyntaxError If everyone agrees, then I propose to open a separate issue on b.p.o. to coordinate the efforts. -- Ivan