$ py -3.11 -c "print([locals() for name in 'abc'])"
[{'.0': <str_ascii_iterator object at 0x10472dc30>, 'name': 'c'}, {'.0': <str_ascii_iterator object at 0x10472dc30>, 'name': 'c'}, {'.0': <str_ascii_iterator object at 0x10472dc30>, 'name': 'c'}]
$ py -3.12 -c "print([locals() for name in 'abc'])"
[{'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <class '_frozen_importlib.BuiltinImporter'>, '__spec__': None, '__annotations__': {}, '__builtins__': <module 'builtins' (built-in)>}, {'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <class '_frozen_importlib.BuiltinImporter'>, '__spec__': None, '__annotations__': {}, '__builtins__': <module 'builtins' (built-in)>}, {'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <class '_frozen_importlib.BuiltinImporter'>, '__spec__': None, '__annotations__': {}, '__builtins__': <module 'builtins' (built-in)>}]
$ py -3.11 -c "print([globals() for name in 'abc'])"
[{'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <class '_frozen_importlib.BuiltinImporter'>, '__spec__': None, '__annotations__': {}, '__builtins__': <module 'builtins' (built-in)>}, {'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <class '_frozen_importlib.BuiltinImporter'>, '__spec__': None, '__annotations__': {}, '__builtins__': <module 'builtins' (built-in)>}, {'__name__': '__main__', '__doc__': None, '__package__': None, '__loader__': <class '_frozen_importlib.BuiltinImporter'>, '__spec__': None, '__annotations__': {}, '__builtins__': <module 'builtins' (built-in)>}]
$ py -3.12 -c "print([locals() is globals() for name in 'abc'])"
[True, True, True]
In Python 3.11, inside a comprehension,
locals()was bound to the scope of the comprehension:But since 3.12b1,
locals()isglobals():May be related to #105256.
Discovered in this job, triggered by this code (which I intend to update not to use
locals()).Is this change intentional?
Linked PRs