[3.13] gh-112821: Fix rlcompleter failures on objects with descriptors (GH-149577) (#149658)

* gh-112821: Fix rlcompleter failures on objects with descriptors (GH-149577)

* gh-112821: Fix rlcompleter failures on objects with descriptors

* Confirm no accesses
(cherry picked from commit f23a1837d7156c4c478528321a423eae2b31e4bf)

Co-authored-by: Michael Droettboom <mdboom@gmail.com>

* Add missing import

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Co-authored-by: Michael Droettboom <mdboom@gmail.com>
Co-authored-by: Michael Droettboom <mdroettboom@nvidia.com>