Name lookup in annotation scopes in classes does not work with non-dict globals #119821
Description
Bug report
Bug description:
This works:
class customdict(dict):
def __missing__(self, key):
return key
code = compile("type Alias = undefined", "test", "exec")
ns = customdict()
exec(code, ns)
Alias = ns["Alias"]
assert Alias.__value__ == "undefined"But this does not:
code = compile("class A: type Alias = undefined", "test", "exec")
ns = customdict()
exec(code, ns)
Alias = ns["A"].Alias
assert Alias.__value__ == "undefined"This is a problem for PEP 649 because we're going to rely on a non-dict globals namespace.
CPython versions tested on:
CPython main branch
Operating systems tested on:
macOS
Linked PRs
- gh-119821: Support non-dict globals in LOAD_FROM_DICT_OR_GLOBALS #119822
- [3.13] gh-119821: Support non-dict globals in LOAD_FROM_DICT_OR_GLOBALS (#119822) #119889
- [3.12] gh-119821: Support non-dict globals in LOAD_FROM_DICT_OR_GLOBALS (#119822) #119890
- [3.12] gh-119821: Fix refleak in LOAD_FROM_DICT_OR_GLOBALS #119975