strict mode vs. pytest.raises(parametrised exc type)

[Dima Tisnek (dimaqq)]

This code doesn't pass pyright in stict mode:

        excinfo: pytest.ExceptionInfo[pebble.ExecError[str]]
        with pytest.raises(pebble.ExecError) as excinfo:
            container.exec(['foo']).wait()
        assert excinfo.value.exit_code == 10

I can change it like this:

        excinfo: pytest.ExceptionInfo[pebble.ExecError[str]]
        with pytest.raises(pebble.ExecError[str]) as excinfo:
            container.exec(['foo']).wait()
        assert excinfo.value.exit_code == 10

But then it fails at runtime:

  File "/Users/runner/work/operator/operator/test/test_testing.py", line 6405, in test_register_with_result
    with pytest.raises(pebble.ExecError[str]) as excinfo:
  File "/Users/runner/work/operator/operator/.tox/py3.10-unit/lib/python3.10/site-packages/_pytest/raises.py", line 284, in raises
    return RaisesExc(expected_exception, **kwargs)
  File "/Users/runner/work/operator/operator/.tox/py3.10-unit/lib/python3.10/site-packages/_pytest/raises.py", line 635, in __init__
    self.expected_exceptions = tuple(
  File "/Users/runner/work/operator/operator/.tox/py3.10-unit/lib/python3.10/site-packages/_pytest/raises.py", line 636, in <genexpr>
    self._parse_exc(e, expected="a BaseException type")
  File "/Users/runner/work/operator/operator/.tox/py3.10-unit/lib/python3.10/site-packages/_pytest/raises.py", line 472, in _parse_exc
    raise TypeError(msg + repr(type(exc).__name__))
TypeError: expected exception must be a BaseException type, not '_GenericAlias'

What's the correct way to handle this?

P.S. the exception is declared like so:

class ExecError(Exception, Generic[AnyStr]):