Undocumented changes of LOAD_GLOBAL's stack effect in Python 3.13

[sklam]

Documentation

This commit changed LOAD_GLOBAL's stack effect: a9caf9c#diff-729a985b0cb8b431cb291f1edb561bbbfea22e3f8c262451cd83328a0936a342L1318-R1318. The null now goes after the global variable. It's missing a verionchanged note in dis.rst:

cpython/Doc/library/dis.rst

Lines 1364 to 1372 in 78fcde0

	.. opcode:: LOAD_GLOBAL (namei)
	Loads the global named ``co_names[namei>>1]`` onto the stack.
	.. versionchanged:: 3.11
	If the low bit of ``namei`` is set, then a ``NULL`` is pushed to the
	stack before the global variable.
	.. opcode:: LOAD_FAST (var_num)

Linked PRs

• gh-114212:Note 3.13 stack order change for LOAD_GLOBAL/LOAD_ATTR/LOAD_SUPER_ATTR #137909

[Eclips4]

cc @brandtbucher

[Fidget-Spinner]

LOAD_ATTR as well it seems.

[no-study-no-life]

LOAD_SUPER_ATTR as well needs.