commit b5499784ec0aa24c8f0d91f2317cc53b7743ada9
author Serhiy Storchaka <storchaka@gmail.com> Mon Oct 04 15:01:11 2021 +0300
committer GitHub <noreply@github.com> Mon Oct 04 15:01:11 2021 +0300
tree a136bc5dc197cf3041bb6c234ea663debd2d631c
parent f146ca36f81075f222aa3a1595042597d96dfad3

[3.10] bpo-45355: Use sizeof(_Py_CODEUNIT) instead of literal 2 for the size of the code unit (GH-28711). (GH-28718)

(cherry picked from commit 60b9e040c9cf40e69f42c0008e564458aa0379e8)

Python/traceback.c

diff --git a/Python/traceback.c b/Python/traceback.c
index 9b23f45..284c181 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -234,7 +234,7 @@ _PyTraceBack_FromFrame(PyObject *tb_next, PyFrameObject *frame)
     assert(tb_next == NULL || PyTraceBack_Check(tb_next));
     assert(frame != NULL);
 
-    return tb_create_raw((PyTracebackObject *)tb_next, frame, frame->f_lasti*2,
+    return tb_create_raw((PyTracebackObject *)tb_next, frame, frame->f_lasti*sizeof(_Py_CODEUNIT),
                          PyFrame_GetLineNumber(frame));
 }