TypeError: isinstance() argument 2 cannot be a parameterized generic #3287
Description
Issue
Stacktrace with tox when loading plugin configuration. Based on the error displayed I believe that is not the plugin fault. The loaded configuration option is a list, like below:
[ansible]
skip =
py3.7
py3.8
2.9
2.10
2.11
2.12
2.13
I am still trying to fully understand this python typing issue in order to know how to avoid it.
Environment
Provide at least:
- OS:
Output of pip list of the host Python, where tox is installed
ROOT: Using a default tox.ini file with tox-ansible plugin is not recommended. Consider using a tox-ansible.ini file and specify it on the command line (`tox --ansible -c tox-ansible.ini`) to avoid unintentionally overriding the tox-ansible environment configurations.
Traceback (most recent call last):
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/bin/tox", line 8, in <module>
sys.exit(run())
^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/run.py", line 20, in run
result = main(sys.argv[1:] if args is None else args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/run.py", line 42, in main
result = provision(state)
^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/provision.py", line 86, in provision
MANAGER.tox_add_core_config(state.conf.core, state)
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/plugin/manager.py", line 79, in tox_add_core_config
self.manager.hook.tox_add_core_config(core_conf=core_conf, state=state)
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/pluggy/_hooks.py", line 513, in __call__
return self._hookexec(self.name, self._hookimpls.copy(), kwargs, firstresult)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/pluggy/_manager.py", line 120, in _hookexec
return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/pluggy/_callers.py", line 139, in _multicall
raise exception.with_traceback(exception.__traceback__)
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/pluggy/_callers.py", line 103, in _multicall
res = hook_impl.function(*args)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/c/a/tox-ansible/src/tox_ansible/plugin.py", line 168, in tox_add_core_config
env_list = add_ansible_matrix(state)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/c/a/tox-ansible/src/tox_ansible/plugin.py", line 266, in add_ansible_matrix
env for env in env_list.envs if all(skip not in env for skip in ansible_config["skip"])
~~~~~~~~~~~~~~^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/config/sets.py", line 116, in __getitem__
return self.load(item)
^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/config/sets.py", line 127, in load
return config_definition.__call__(self._conf, self.loaders, ConfigLoadArgs(chain, self.name, self.env_name)) # noqa: PLC2801
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/config/of_type.py", line 103, in __call__
value = loader.load(key, self.of_type, self.factory, conf, args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/config/loader/api.py", line 144, in load
converted = self.build(key, of_type, factory, conf, raw, args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/config/loader/ini/__init__.py", line 85, in build
converted = self.to(prepared, of_type, factory)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/ssbarnea/.asdf/installs/python/3.12.3/lib/python3.12/site-packages/tox/config/loader/convert.py", line 42, in to
if isinstance(raw, of_type): # already target type no need to transform it
^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: isinstance() argument 2 cannot be a parameterized generic```
</details>
## Output of running tox
<details open>
<summary>Output of <code>tox -rvv</code></summary>
```console
Minimal example
https://github.com/ansible-collections/cisco.nxos/actions/runs/9277917412/job/25528009504