Method item_from_string

traitlets/traitlets.py:3811–3820

Cast a single item from a string Evaluated when parsing CLI configuration from a string

(self, s: str, index: int)

        super(Container, self).__init__(klass=self.klass, args=args, **kwargs)

    def item_from_string(self, s: str, index: int) -> t.Any:  # type:ignore[override]
        """Cast a single item from a string

        Evaluated when parsing CLI configuration from a string
        """
        if not self._traits or index >= len(self._traits):
            # return s instead of raising index error
            # length errors will be raised later on validation
            return s
        return self._traits[index].from_string(s)

    def validate_elements(self, obj: t.Any, value: t.Any) -> t.Any:
        if not self._traits: