Thomas Grainger <[email protected]> added the comment:
or consider the trio version:
```
import logging
import trio
from contextlib import asynccontextmanager
@asynccontextmanager
async def foo():
await trio.sleep(1)
yield
async def test():
async with trio.open_nursery() as n:
f = foo()
n.start_soon(f.__aenter__)
n.start_soon(f.__aenter__)
trio.run(test)
```
```
Traceback (most recent call last):
File "/home/graingert/projects/examples/bar.py", line 17, in <module>
trio.run(test)
File
"/home/graingert/.virtualenvs/testing39/lib/python3.9/site-packages/trio/_core/_run.py",
line 1932, in run
raise runner.main_task_outcome.error
File "/home/graingert/projects/examples/bar.py", line 15, in test
n.start_soon(f.__aenter__)
File
"/home/graingert/.virtualenvs/testing39/lib/python3.9/site-packages/trio/_core/_run.py",
line 815, in __aexit__
raise combined_error_from_nursery
File "/usr/lib/python3.9/contextlib.py", line 179, in __aenter__
del self.args, self.kwds, self.func
AttributeError: args
```
----------
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<https://bugs.python.org/issue45996>
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