RuntimeError: set_wakeup_fd only works in main thread of the main interpreter #645
Description
The PR #608 is introducing support for Juju 3.x, during the testing it was found that zaza is incompatible with python-libjuju>=3.2, which prevents using juju 3.2 and 3.3.
The stacktrace of the error is:
Using /home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages
Finished processing dependencies for zaza==0.0.2.dev1
func-target: commands[1]> functest-run-suite --keep-model --bundle first
2024-01-17 15:45:23 [INFO] Could not determine correct model aliasfrom tests.yaml, using default
Traceback (most recent call last):
File "/usr/lib/python3.10/asyncio/unix_events.py", line 105, in add_signal_handler
signal.set_wakeup_fd(self._csock.fileno())
ValueError: set_wakeup_fd only works in main thread of the main interpreter
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/runner/work/zaza/zaza/.tox/func-target/bin/functest-run-suite", line 33, in <module>
sys.exit(load_entry_point('zaza==0.0.2.dev1', 'console_scripts', 'functest-run-suite')())
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/charm_lifecycle/func_test_runner.py", line 405, in main
func_test_runner(
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/charm_lifecycle/func_test_runner.py", line 313, in func_test_runner
run_env_deployment(env_deployment, keep_model=preserve_model,
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/charm_lifecycle/func_test_runner.py", line 125, in run_env_deployment
prepare.prepare(
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/utilities/run_report.py", line 144, in wrapper
result = f(*args, **kwds)
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/charm_lifecycle/prepare.py", line 44, in prepare
zaza.controller.add_model(
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/__init__.py", line 224, in _wrapper
return future.result(timeout)
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 458, in result
return self.__get_result()
File "/usr/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result
raise self._exception
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/__init__.py", line 209, in _runner
return await f(*args, **kwargs)
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/zaza/controller.py", line 40, in async_add_model
await controller.connect()
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/controller.py", line 108, in connect
await self._connector.connect_controller(controller_name, **kwargs)
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connector.py", line 127, in connect_controller
await self.connect(
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connector.py", line 86, in connect
self._connection = await Connection.connect(**kwargs)
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connection.py", line 356, in connect
await self._connect_with_redirect([_ep])
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connection.py", line 908, in _connect_with_redirect
login_result = await self._connect_with_login(endpoints)
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connection.py", line 875, in _connect_with_login
await self._connect(endpoints)
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connection.py", line 824, in _connect
result = await task
File "/usr/lib/python3.10/asyncio/tasks.py", line 571, in _wait_for_one
return f.result() # May raise f.exception().
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connection.py", line 813, in _try_endpoint
return await self._open(endpoint, cacert)
File "/home/runner/work/zaza/zaza/.tox/func-target/lib/python3.10/site-packages/juju/client/connection.py", line 430, in _open
loop.add_signal_handler(sig, _exit_tasks)
File "/usr/lib/python3.10/asyncio/unix_events.py", line 107, in add_signal_handler
raise RuntimeError(str(exc))
RuntimeError: set_wakeup_fd only works in main thread of the main interpreter
func-target: exit 1 (0.70 seconds) /home/runner/work/zaza/zaza> functest-run-suite --keep-model --bundle first pid=11317
.pkg: _exit> python /home/runner/.local/lib/python3.10/site-packages/pyproject_api/_backend.py True setuptools.build_meta __legacy__
func-target: FAIL code 1 (26.05=setup[24.57]+cmd[0.78,0.70] seconds)
evaluation failed :( (26.13 seconds)
Error: Process completed with exit code 1.
It seems this regression was introduced by juju/python-libjuju@62a988f part of python-libjuju>=3.2.2.