bpo-38062: [doc] clarify that atexit uses equality comparisons internally. (GH-26935) (GH-26956)

(cherry picked from commit 12803c59d54ff1a45a5b08cef82652ef199b3b07)

Co-authored-by: Jack DeVries <58614260+jdevries3133@users.noreply.github.com>
2 files changed