Port, board and/or hardware

Waveshare ESP32-C3-Zero Development Board

MicroPython version

MicroPython v1.25.0 on 2025-04-15; ESP32C3 module with ESP32C3

Reproduction

with_const.py

from micropython import const

class HelloWorld:
    TEST = const("Hello World!")

    def __init__(self):
        print(TEST)

>>> import with_const
>>> hello_world = with_const.HelloWorld()
Hello World!
>>>

without_const.py

class HelloWorld:
    TEST = "Hello World!"

    def __init__(self):
        print(TEST)

>>> import without_const
>>> hello_world = without_const.HelloWorld()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "without_const.py", line 5, in __init__
NameError: name 'TEST' isn't defined
>>>

I wouldn't have noticed that I wasn't properly referencing my class constant variable if it wasn't for PyLint telling me I was making mistakes. This seems like a bug?

Expected behaviour

I expected the example using micropython.const() to error.

Observed behaviour

There is no error.

Additional Information

No, I've provided everything above.

Code of Conduct

Yes, I agree