Method create_from

src/flake8/statistics.py:81–83

Create a Key from :class:`flake8.violation.Violation`.

(cls, error: Violation)

    @classmethod
    def create_from(cls, error: Violation) -> Key:
        """Create a Key from :class:`flake8.violation.Violation`."""
        return cls(filename=error.filename, code=error.code)

    def matches(self, prefix: str, filename: str | None) -> bool:
        """Determine if this key matches some constraints.