Exception when running aiohttp example with PyQt5

[grossmj]

First, setup a virtual env with Python 3.8, install the dependencies and edit executor_example.py to use PyQt5:

$ python3.8 -m venv test-python3.8
$ source test-python3.8/bin/activate
$ python3 -m pip install pyqt5 qasync aiohttp

Then execute the example, fetch a page and close the window:

$ python3 executor_example.py

Traceback (most recent call last):
  File "/usr/lib/python3.8/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/tmp/test-python3.8/lib/python3.8/site-packages/qasync/__init__.py", line 409, in run_until_complete
    return future.result()
asyncio.exceptions.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "test.py", line 95, in <module>
    qasync.run(main())
  File "/tmp/test-python3.8/lib/python3.8/site-packages/qasync/__init__.py", line 821, in run
    return asyncio.run(*args, **kwargs)
  File "/usr/lib/python3.8/asyncio/runners.py", line 51, in run
    loop.close()
  File "/tmp/test-python3.8/lib/python3.8/site-packages/qasync/__init__.py", line 449, in close
    notifier.setEnabled(False)
RuntimeError: wrapped C/C++ object of type QSocketNotifier has been deleted

I was also able to reproduce with Python 3.7

Traceback (most recent call last):
  File "/usr/lib/python3.7/asyncio/runners.py", line 43, in run
    return loop.run_until_complete(main)
  File "/tmp/test-python3.7/lib/python3.7/site-packages/qasync/__init__.py", line 409, in run_until_complete
    return future.result()
concurrent.futures._base.CancelledError

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "test.py", line 95, in <module>
    qasync.run(main())
  File "/tmp/test-python3.7/lib/python3.7/site-packages/qasync/__init__.py", line 821, in run
    return asyncio.run(*args, **kwargs)
  File "/usr/lib/python3.7/asyncio/runners.py", line 50, in run
    loop.close()
  File "/tmp/test-python3.7/lib/python3.7/site-packages/qasync/__init__.py", line 449, in close
    notifier.setEnabled(False)
RuntimeError: wrapped C/C++ object of type QSocketNotifier has been deleted

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "test.py", line 96, in <module>
    except asyncio.exceptions.CancelledError:
AttributeError: module 'asyncio' has no attribute 'exceptions'

Interestingly, I got no issue with Python 3.10 or when using Pyside2/Pyside6

[hosaka]

Although this is rather outdated, FWIW I have tested both aiohttp_fetch.py and executor_example.py using PyQt5 and PySide2. Both are working fine. Closing this for now, if the problem should appear again, please create a new issue for better visibility or comment on this one.