Bug with dunder methods

[klamike]

Type: Bug

class Contains:
    def __contains__(self, x): return True

    def method(self, x): return x in self  # `in` does not point to __contains__

1 not in Contains()  # only `not` is highlighted instead of `not in`

Extension version: 2025.8.3
VS Code version: Code 1.103.2 (Universal) (6f17636121051a53c88d3e605c491d22af2ba755, 2025-08-20T16:45:34.255Z)
OS version: Darwin arm64 25.0.0
Modes:

[github-actions]

Hi @klamike, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

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Similar Issues (FYI only, not solutions)

The following issues may or may not be related to your report. They are provided for reference only, as they may describe similar symptoms, affect the same feature, or address related concerns, but may not be the same issue.

• Detecting unreachable code via NoReturn does not work for most dunder methods – Detecting unreachable code via NoReturn does not work for most dunder methods #3749

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