Enum: Value 'self.value' is unsubscriptable (unsubscriptable-object) where value is a tuple

[geckon]

Steps to reproduce

#! python3

from enum import Enum

class MyEnum(Enum):
    FOO = (1, "f")
    BAR = (2, "b")

    def __str__(self):
        return self.value[1]

Run pylint on the file above.

Current behavior

E: 10,15: Value 'self.value' is unsubscriptable (unsubscriptable-object)

Expected behavior

No error - value here is a tuple (and can't be reassigned).

pylint --version output

$ pylint --version
No config file found, using default configuration
pylint 1.8.4, 
astroid 1.6.3
Python 3.4.6 (default, Mar 22 2017, 12:26:13) [GCC]

[PCManticore]

Thank you, I can reproduce the issue!
The source of problems for enum comes from our astroid brain tip for the enum library (https://github.com/PyCQA/astroid/blob/master/astroid/brain/brain_namedtuple_enum.py#L199), which is somewhat lossy in some areas as this one (if I recall correctly we don't fully reuse the values provided in the enum).

[bje-]

I am also seeing this now after an upgrade. The message is:

test.py:5: [E1136(unsubscriptable-object), ] Value 'x.shape' is unsubscriptable

Test case:

"""Test case."""
import numpy as np

x = np.zeros(10, 10)
y = x.shape[0]

[hippo91]

@bje- in fact it is a totally different problem than the one reported by @geckon .
No need to open a new issue anyway, because it is the same as #3139.

[aakash77]

I was facing the same issue, after providing the type of the value it fixed my issue. So something like:

class MyEnum(Enum):
    value: Tuple[int, str]
    FOO = (1, "f")
    BAR = (2, "b")

    def __str__(self):
        return self.value[1]

[hippo91]

@aakash77 thanks for the hint!

[mbyrnepr2]

This no longer appears to be an issue on latest main:

pylint 2.14.0-dev0
astroid 2.11.4
Python 3.9.10 (v3.9.10:f2f3f53782, Jan 13 2022, 17:02:14) 
[Clang 6.0 (clang-600.0.57)]