Le mercredi 1 mars 2017 09:25:48 UTC-5, Frank Millman a écrit :
> "Frank Millman" wrote in message news:o93vs2$smi$1...@blaine.gmane.org...
SNIP
>
> If you run this as is, it works.
>
> I added '1/0' at various points, to force an exception.
>
> If I put it in main() or in aenum(), I do not get the full traceback.
>
> If I put it in aenumerate() or in gen(), I do get the traceback.
>
Hi,
I ran your snippet, using 3.6 under Linux, and get the correct (imo) full
traceback in all cases :
ZeroDivisionError Traceback (most recent call last)
<ipython-input-4-2068e4a933e4> in <module>()
25
26 loop = asyncio.get_event_loop()
---> 27 loop.run_until_complete(main())
/opt/softs/python/3.6/lib/python3.6/asyncio/base_events.py in
run_until_complete(self, future)
464 raise RuntimeError('Event loop stopped before Future
completed.')
465
--> 466 return future.result()
467
468 def stop(self):
<ipython-input-4-2068e4a933e4> in main()
22
23 async def main():
---> 24 await aenum()
25
26 loop = asyncio.get_event_loop()
<ipython-input-4-2068e4a933e4> in aenum()
14
15 async def aenum():
---> 16 1/0
17 g = gen(5)
18 async for a, x in aenumerate(g):
ZeroDivisionError: division by zero
In [5]:
BUT !
There is one time where I got a RuntimeError, and it's with 1/0 placed inside
aenumerate() (after the yield) :
In [8]:
...: import asyncio
...: from itertools import count
...:
...: async def aenumerate(aiterable):
...: counter = count()
...: async for x in aiterable:
...: yield next(counter), x
...: await asyncio.sleep(0.5)
...: 1/0
...:
...: async def gen(n):
...: for i in range(100, 100+n):
...: yield i
...:
...: async def aenum():
...: g = gen(5)
...: async for a, x in aenumerate(g):
...: print(a, x)
...: print('done')
...:
...: async def main():
...:
...: await aenum()
...:
...: loop = asyncio.get_event_loop()
...: loop.run_until_complete(main())
...:
0 100
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)
<ipython-input-8-0132c3d8fdfa> in <module>()
25
26 loop = asyncio.get_event_loop()
---> 27 loop.run_until_complete(main())
/opt/softs/python/3.6/lib/python3.6/asyncio/base_events.py in
run_until_complete(self, future)
462 future.remove_done_callback(_run_until_complete_cb)
463 if not future.done():
--> 464 raise RuntimeError('Event loop stopped before Future
completed.')
465
466 return future.result()
RuntimeError: Event loop stopped before Future completed.
In [9]:
I tried reproducing it but couldn't. Other trials now always show the full
traceback up to the 1/0 expression.
Not sure this helps you though..
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