Clarifications

Author: markshannon

Misc/NEWS.d/next/Core_and_Builtins/2025-03-04-15-12-32.gh-issue-128534.3A0K3D.rst

@@ -1,2 +1,2 @@
-Ensure that both and left branches have same source for ``async for`` loops.
+Ensure that both left and right branches have the same source for ``async for`` loops.
 Add these branches to the ``co_branches()`` iterator.

Python/assemble.c

@@ -675,7 +675,8 @@ resolve_jump_offsets(instr_sequence *instrs)
                 instruction *target = &instrs->s_instrs[instr->i_target];
                 instr->i_oparg = target->i_offset;
                 if (instr->i_opcode == END_ASYNC_FOR) {
-                    // Monitoring needs the target to be the END_SEND
+                    // sys.monitoring needs to be able to find the matching END_SEND
+                    // but the target is the SEND, so we adjust it here.
                     instr->i_oparg = offset - instr->i_oparg - END_SEND_OFFSET;
                 }
                 else if (instr->i_oparg < offset) {