[Python-ideas] Async Lambda syntax
tjreedy at udel.edu
Fri May 18 17:44:15 EDT 2018
On 5/18/2018 4:53 PM, Noah Simon wrote:
> Hello all,
> I was developing a script using an asyncio-based API, when I came across
> the need to define an asynchronous lambda.
> I found this syntax does not
> currently exist. Obviously I could have (and did) just write a regular
> coroutine, but for simple one-line functions and such, I think an
> asynchronous lambda syntax would be useful. I do not have the experience
> to write a PEP or implement this, so I was wondering what you all think
> of the idea.
> What I was thinking:
> foo = async lambda a, b: b + await bar(a
PEP8 intentionally and properly discourages 'name = lambda ...' as
inferior to 'def name(...'. For the above,
async def foo(a, b): return b + await bar(a)
> I posted an issue <https://bugs.python.org/issue33447> on the issue
> tracker suggesting this, and was directed to this mailing list.
Terry Jan Reedy
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