Method generate_incompatible_tuple_error

mypy/messages.py:2518–2548

Generate error message for individual incompatible tuple pairs

(
        self,
        lhs_types: list[Type],
        rhs_types: list[Type],
        context: Context,
        msg: message_registry.ErrorMessage,
    )

            return format_type(typ, self.options)

    def generate_incompatible_tuple_error(
        self,
        lhs_types: list[Type],
        rhs_types: list[Type],
        context: Context,
        msg: message_registry.ErrorMessage,
    ) -> None:
        """Generate error message for individual incompatible tuple pairs"""
        error_cnt = 0
        notes: list[str] = []
        for i, (lhs_t, rhs_t) in enumerate(zip(lhs_types, rhs_types)):
            if not is_subtype(rhs_t, lhs_t):
                if error_cnt < 3:
                    notes.append(
                        "Expression tuple item {} has type {}; {} expected; ".format(
                            str(i),
                            format_type(rhs_t, self.options),
                            format_type(lhs_t, self.options),
                        )
                    )
                error_cnt += 1

        info = f" ({str(error_cnt)} tuple items are incompatible"
        if error_cnt - 3 > 0:
            info += f"; {str(error_cnt - 3)} items are omitted)"
        else:
            info += ")"
        msg = msg.with_additional_msg(info)
        self.fail(msg.value, context, code=msg.code)
        for note in notes:
            self.note(note, context, code=msg.code)

    def add_fixture_note(self, fullname: str, ctx: Context) -> None:
        self.note(f'Maybe your test fixture does not define "{fullname}"?', ctx)