"ast" <nomail@com.invalid> a écrit dans le message de
news:5a2a568c$0$3699$426a7...@news.free.fr...
I made some experiment.
It seems that the iterator shall provide None values, an other value
raises an exception: "RuntimeError: Task got bad yield: 1"
and in instruction "res = await obj", res got the StopIteration exception
value
See my test program and output.
import asyncio
class Test:
def __init__(self):
self.i = 0
def __await__(self):
return self
def __iter__(self):
return self
def __next__(self):
if self.i < 5:
self.i += 1
return None
else:
raise StopIteration(11)
test = Test()
async def coro1():
print("Enter coro1")
res = await test
print("end of coro1, res= ", res)
async def coro2():
print("Enter coro2")
for i in range(8):
print("in coro2")
await asyncio.sleep(0)
loop = asyncio.get_event_loop()
loop.run_until_complete(asyncio.wait([coro1(), coro2()]))
========== RESTART ==========
Enter coro1
Enter coro2
in coro2
in coro2
in coro2
in coro2
in coro2
end of coro1, res= 11
in coro2
in coro2
in coro2
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