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Tue Mar 7 13:37:41 EST 2017 · https://mail.python.org/pipermail/python-dev/2017-March/147561.html

2017-03-07 10:15 GMT-08:00 Ethan Furman <ethan at stoneleaf.us>:

> On 03/07/2017 09:41 AM, Brett Cannon wrote:
>
> I don't think a common practice has bubbled up yet for when there's both
>> synchronous and asynchronous versions of an API
>> (closest I have seen is appending an "a" to the async version but that
>> just looks like a spelling mistake to me most of
>> the time). This is why the question of whether separate modules are a
>> better idea is coming up.
>>
>
> I'm undoubtedly going to show my ignorance with this question, but is it
> feasible to have both sync and async support in the same object?
>
> It's possible, but it quickly gets awkward and will require a lot of code
duplication. For example, we could make @contextmanager work for async
functions by making the _GeneratorContextManager class implement both
enter/exit and aenter/aexit, but then you'd get an obscure error if you
used with on an async contextmanager or async with on a non-async
contextmanager.


> --
> ~Ethan~
>
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[Python-Dev] API design: where to add async variants of existing stdlib APIs?