[Bug] Micropython variable scoping confusion

[afarago]

Describe the bug I am trying to access and even change local variables via the locals() disctionary. Any local variables seem to be missing from this dictionary / except for the module global scope, where globals() seems to be equal to locals().

To reproduce

def function1():
    apple = 1
    print("apple", apple, locals())
    locals()['apple'] = 2
    print("apple", apple, locals())

def function2():
    peach = 2
    print("peach", peach, locals())
    locals()['peach'] = 3
    print("peach", peach, locals())

def function3():
    pear = 3
    print("pear", pear, locals())
    locals()['pear'] = 4
    print("pear", pear, locals())
    function1()
    function2()

varroot1 = 42
print("varroot1", varroot1, locals())
locals()['varroot1'] = 43
print("varroot1", varroot1, locals())
function3()

varroot1 42 {'__name__': '__main__', 'function1': <function>, 'varroot1': 42, 'function3': <function>, 'function2': <function>}
varroot1 43 {'__name__': '__main__', 'function1': <function>, 'varroot1': 43, 'function3': <function>, 'function2': <function>}
pear 3 {'__name__': '__main__', 'function1': <function>, 'varroot1': 43, 'function3': <function>, 'function2': <function>}
pear 3 {'__name__': '__main__', 'function1': <function>, 'varroot1': 43, 'pear': 4, 'function3': <function>, 'function2': <function>}
apple 1 {'__name__': '__main__', 'function1': <function>, 'varroot1': 43, 'pear': 4, 'function3': <function>, 'function2': <function>}
apple 1 {'apple': 2, '__name__': '__main__', 'pear': 4, 'function3': <function>, 'function2': <function>, 'function1': <function>, 'varroot1': 43}
peach 2 {'apple': 2, '__name__': '__main__', 'pear': 4, 'function3': <function>, 'function2': <function>, 'function1': <function>, 'varroot1': 43}
peach 2 {'apple': 2, 'peach': 3, '__name__': '__main__', 'pear': 4, 'function3': <function>, 'function2': <function>, 'function1': <function>, 'varroot1': 43}

Expected behavior Data is set to the new values in the original local scoped variables.

Here only varroot1 variable is changing values.

Screenshots Code snippet is added.