Bug report

Bug description:

When passing a code object to the eval (doc) builtin, I am observing that the locals dictionary is not always filled with the variables created inside of the code. For example:

import textwrap

def foo_func():
    a = 1
    b = 2

foo_str = compile(
    textwrap.dedent("""\
        a = 1
        b = 2
        """
    ),
    '<file>',
    'exec',
)


glb = globals()
loc = {}

eval(foo_func.__code__, glb, loc)
print('foo_func', loc)

eval(foo_str, glb, loc)
print('foo_str', loc)

produces the output:

foo_func {}
foo_str {'a': 1, 'b': 2}

I would expect the output to be the same for both calls.

CPython versions tested on:

3.13

Operating systems tested on:

Linux, macOS