unsupported-assignment-operation false positive

[nikita-leontiev]

Bug description

Below code leads to unsupported-assignment-operation false positive:

if __name__ == "__main__":
    test_dict = {"key": None}
    test_dict["key"] = {"key": None}
    test_dict["key"]["key"] = 0

Command used

pylint -sn --disable=C0114 test.py

Pylint output

test.py:4:4: E1137: "test_dict['key']" does not support item assignment (unsupported-assignment-operation)

Expected behavior

No E1137.

Pylint version

pylint 3.3.1
astroid 3.3.5
Python 3.12.3 (main, Sep 11 2024, 14:17:37) [GCC 13.2.0]