Pylint doesn't handle flow control and thus, doesn't understand
that a key of type `str` is not reachable at this point:
> ipalib/base.py:472: [E1126(invalid-sequence-index),
NameSpace.__getitem__] Sequence index is not an int, slice, or instance
with __index__)
Note: I faced this error on Python3.9 and didn't see it using
Python3.10.
Fixes: https://pagure.io/freeipa/issue/9117
Signed-off-by: Stanislav Levin <slev@altlinux.org>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>