[issue24578] [RFE] Add asyncio.wait_for_result API
Nick Coghlan added the comment: It occurs to me that given both this API and the call_async() API now proposed in issue 24571, otherwise synchronous code can do things like: futureB = asyncio.call_async(slow_io_bound_operation) futureC = asyncio.call_async(another_slow_io_bound_operation) a = calculateA() b = asyncio.wait_for_result(futureB) c = asyncio.wait_for_result(futureC) Which still reads well when combined with await: b = await asyncio.call_async(blocking_operation) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24578] [RFE] Add asyncio.wait_for_result API
Guido van Rossum added the comment: Maybe the two issues should be merged so the two proposals can be considered together. I'm -0 on both, because each of these is really just one line of code and it seems they both encourage mindless copy-pasting that just saddens me (similar to Python scripts I sometimes see that are just a series of shell invocations using subprocess.getoutput() or similar, including calls to rm or echo). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24578] [RFE] Add asyncio.wait_for_result API
Nick Coghlan added the comment: As Guido suggested, merging back into issue 24571 -- resolution: - duplicate status: open - closed superseder: - [RFE] Add asyncio.call_async API ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24578] [RFE] Add asyncio.wait_for_result API
New submission from Sven R. Kunze: In order to complement http://bugs.python.org/issue24571, this is another high-level convenience API for asyncio to treat an awaitable like a usual subroutine (credits go to Nick Coghlan): # Call awaitable from synchronous code def wait_for_result(awaitable): Usage: result = asyncio.wait_for_result(awaitable) return asyncio.get_event_loop().run_until_complete(awaitable.__await__()) It may not be that conceptually dense, however, I feel for projects transitioning from the classical subroutine world to the asyncio world, this functionality might prove useful to bridge both worlds seamlessly when necessary. -- components: asyncio messages: 246373 nosy: gvanrossum, haypo, srkunze, yselivanov priority: normal severity: normal status: open title: [RFE] Add asyncio.wait_for_result API versions: Python 3.5, Python 3.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24578] [RFE] Add asyncio.wait_for_result API
Changes by Sven R. Kunze srku...@mail.de: -- nosy: +giampaolo.rodola, ncoghlan, pitrou -srkunze type: - enhancement ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24578] [RFE] Add asyncio.wait_for_result API
Changes by Sven R. Kunze srku...@mail.de: -- nosy: +srkunze ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24578] [RFE] Add asyncio.wait_for_result API
Martin Panter added the comment: I don’t think you need the __await__() call. Just do loop.run_until_complete(awaitable). I understand “asyncio” doesn’t support recursive calls into the same event loop on purpose; see Issue 22239. So this code would only be useful from outside of the event loop, or if more than one event loop was in use. -- nosy: +vadmium ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24578 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
