Regression when closing session #11273
Description
Describe the bug
V3.12.4 Introduced a regression, in which, session with some proxies can't be closed.
Originally posted: #11261
To Reproduce
Done never prints here:
import asyncio
from aiohttp import ClientSession
async def main():
proxy = ""
session = ClientSession(proxy=proxy)
async with session.get(
"https://api.ipify.org/",
) as response:
ip = await response.text()
print("Closing session...")
await session.close()
print("Done")
return ip
asyncio.run(main())Using async with not help.
Expected behavior
Aiohttp closes session, without running forever
Logs/tracebacks
3.12.3:
C:\Users\topsp\OneDrive\Desktop\project>pip install aiohttp==3.12.4
Collecting aiohttp==3.12.4
Using cached aiohttp-3.12.4-cp313-cp313-win_amd64.whl.metadata (7.9 kB)
Requirement already satisfied: aiohappyeyeballs>=2.5.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.4) (2.6.1)
Requirement already satisfied: aiosignal>=1.1.2 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.4) (1.3.2)
Requirement already satisfied: attrs>=17.3.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.4) (25.3.0)
Requirement already satisfied: frozenlist>=1.1.1 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.4) (1.5.0)
Requirement already satisfied: multidict<7.0,>=4.5 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.4) (6.1.0)
Requirement already satisfied: propcache>=0.2.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.4) (0.2.1)
Requirement already satisfied: yarl<2.0,>=1.17.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.4) (1.18.3)
Requirement already satisfied: idna>=2.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from yarl<2.0,>=1.17.0->aiohttp==3.12.4) (3.10)
Using cached aiohttp-3.12.4-cp313-cp313-win_amd64.whl (439 kB)
Installing collected packages: aiohttp
Attempting uninstall: aiohttp
Found existing installation: aiohttp 3.12.3
Uninstalling aiohttp-3.12.3:
Successfully uninstalled aiohttp-3.12.3
Successfully installed aiohttp-3.12.4
C:\Users\topsp\OneDrive\Desktop\project>python script.py
Closing session...
Traceback (most recent call last):
File "C:\Users\topsp\AppData\Local\Programs\Python\Python313\Lib\asyncio\runners.py", line 118, in run
return self._loop.run_until_complete(task)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
File "C:\Users\topsp\AppData\Local\Programs\Python\Python313\Lib\asyncio\base_events.py", line 725, in run_until_complete
return future.result()
~~~~~~~~~~~~~^^
File "C:\Users\topsp\OneDrive\Desktop\project\script.py", line 15, in main
await connector.close()
File "C:\Users\topsp\AppData\Local\Programs\Python\Python313\Lib\site-packages\aiohttp\connector.py", line 137, in _wait_for_close
results = await asyncio.gather(*waiters, return_exceptions=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
asyncio.exceptions.CancelledError
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\topsp\OneDrive\Desktop\project\script.py", line 21, in <module>
asyncio.run(main(), debug=True)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^
File "C:\Users\topsp\AppData\Local\Programs\Python\Python313\Lib\asyncio\runners.py", line 195, in run
return runner.run(main)
~~~~~~~~~~^^^^^^
File "C:\Users\topsp\AppData\Local\Programs\Python\Python313\Lib\asyncio\runners.py", line 123, in run
raise KeyboardInterrupt()
KeyboardInterrupt
3.12.4:
C:\Users\topsp\OneDrive\Desktop\project>pip install aiohttp==3.12.3
Collecting aiohttp==3.12.3
Using cached aiohttp-3.12.3-cp313-cp313-win_amd64.whl.metadata (7.9 kB)
Requirement already satisfied: aiohappyeyeballs>=2.5.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.3) (2.6.1)
Requirement already satisfied: aiosignal>=1.1.2 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.3) (1.3.2)
Requirement already satisfied: attrs>=17.3.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.3) (25.3.0)
Requirement already satisfied: frozenlist>=1.1.1 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.3) (1.5.0)
Requirement already satisfied: multidict<7.0,>=4.5 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.3) (6.1.0)
Requirement already satisfied: propcache>=0.2.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.3) (0.2.1)
Requirement already satisfied: yarl<2.0,>=1.17.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from aiohttp==3.12.3) (1.18.3)
Requirement already satisfied: idna>=2.0 in c:\users\topsp\appdata\roaming\python\python313\site-packages (from yarl<2.0,>=1.17.0->aiohttp==3.12.3) (3.10)
Using cached aiohttp-3.12.3-cp313-cp313-win_amd64.whl (438 kB)
Installing collected packages: aiohttp
Attempting uninstall: aiohttp
Found existing installation: aiohttp 3.12.4
Uninstalling aiohttp-3.12.4:
Successfully uninstalled aiohttp-3.12.4
Successfully installed aiohttp-3.12.3
C:\Users\topsp\OneDrive\Desktop\project>python script.py
Closing session...
Done
Python Version
Python 3.13.5aiohttp Version
aiohttp==3.12.13multidict Version
multidict==6.6.3propcache Version
propcache==0.3.2yarl Version
yarl==1.20.1OS
Windows 10
Related component
Client
Additional context
Thank you for investigating this issue.
Code of Conduct
- I agree to follow the aio-libs Code of Conduct