[docs] [issue42451] Indicate in the docs that PyTuple_GetItem does not support negative indices

Change by Yasser Alshalaan : ---------- keywords: +patch nosy: +Yasser Alshalaan nosy_count: 2.0 -> 3.0 pull_requests: +22411 stage: -> patch review pull_request: https://github.com/python/cpython/pull/23529 _______________________________________ Python tracker https://bugs.python.org/issue42451 _______________________________________