asyncio.open_connection happy_eyeballs_delay leaves refcycles with exception tracebacks #124858
Description
Bug report
Bug description:
import asyncio
import gc
import objgraph
import weakref
async def amain():
exc = None
try:
await asyncio.open_connection(
host="localhost", port=8080, happy_eyeballs_delay=0.25
)
except* OSError as excs:
exc = excs.exceptions[0]
assert exc is not None
print(gc.get_referrers(exc))
asyncio.run(amain())should be empty but you get a bunch of exceptions lists:
[[ConnectionRefusedError(111, "Connect call failed ('127.0.0.1', 8080)")], [ConnectionRefusedError(111, "Connect call failed ('127.0.0.1', 8080)")]]
CPython versions tested on:
3.12, 3.13, CPython main branch
Operating systems tested on:
Linux