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asyncio.Task.print_stack() misses async generator frames #161178
Description
Bug report
Task.print_stack() returns an empty list for a pending task created from anext(), asend(), athrow(), or aclose().
import asyncio
async def gen():
await asyncio.Future()
yield
async def main():
task = asyncio.create_task(anext(gen()))
await asyncio.sleep(0)
task.print_stack()
asyncio.run(main())Actual output:
No stack for <Task pending name='Task-2' coro=<<async_generator_asend without __name__>()> wait_for=<Future pending cb=[Task.task_wakeup()]>>
Expected output:
Stack for <Task pending name='Task-2' coro=<<async_generator_asend without __name__>()> wait_for=<Future pending cb=[Task.task_wakeup()]>> (most recent call last):
File "/Users/timofeiivankov/cpython/repro.py", line 4, in gen
await asyncio.Future()
Proposed fix: support aga_gen that was added by gh-160837
I'll work on this
CPython versions tested on:
CPython main branch
Operating systems tested on:
macOS
Activity
gh-161178: Fix missing async generator frames in `asyncio.Task.print_…