Method redundant_expr

mypy/messages.py:2166–2171

(self, description: str, truthiness: bool, context: Context)

        self.redundant_expr("If condition", truthiness, context)

    def redundant_expr(self, description: str, truthiness: bool, context: Context) -> None:
        self.fail(
            f"{description} is always {str(truthiness).lower()}",
            context,
            code=codes.REDUNDANT_EXPR,
        )

    def impossible_intersection(
        self, formatted_base_class_list: str, reason: str, context: Context