Regression in Python 3.11 when explicitly passing None to FutureIter.throw #101326
Description
Reported and commit identified by @alicederyn in python/typeshed#9586
Regression caused by #31973. Doesn't contain a news entry, so probably not intentional.
λ cat xxx.py
import asyncio
async def f():
await asyncio.sleep(0)
async def g():
await asyncio.gather(f(), f())
h = g()
h.send(None)
print(type(h))
h.throw(ValueError("some error"), None, None)
λ python3.10 xxx.py
/Users/shantanu/dev/cpython/xxx.py:5: DeprecationWarning: There is no current event loop
await asyncio.gather(f(), f())
<class 'coroutine'>
Traceback (most recent call last):
File "/Users/shantanu/dev/cpython/xxx.py", line 10, in <module>
h.throw(ValueError("some error"), None, None)
File "/Users/shantanu/dev/cpython/xxx.py", line 5, in g
await asyncio.gather(f(), f())
ValueError: some error
λ python3.11 xxx.py
/Users/shantanu/dev/cpython/xxx.py:5: DeprecationWarning: There is no current event loop
await asyncio.gather(f(), f())
<class 'coroutine'>
Traceback (most recent call last):
File "/Users/shantanu/dev/cpython/xxx.py", line 10, in <module>
h.throw(ValueError("some error"), None, None)
File "/Users/shantanu/dev/cpython/xxx.py", line 5, in g
await asyncio.gather(f(), f())
TypeError: throw() third argument must be a traceback