Create a new SArray with all the values cast to datetime. The string format is
        specified by the 'format' parameter.

        Parameters
        ----------
        format : str
            The string format of the input SArray. Default format is "%Y-%m-%dT%H:%M:%S%ZP".
            If format is "ISO", the the format is "%Y%m%dT%H%M%S%F%q"
        Returns
        -------
        out : SArray[datetime.datetime]
            The SArray converted to the type 'datetime'.

        Examples
        --------
        >>> sa = turicreate.SArray(["20-Oct-2011 09:30:10 GMT-05:30"])
        >>> sa.str_to_datetime("%d-%b-%Y %H:%M:%S %ZP")
        dtype: datetime
        Rows: 1
        datetime.datetime(2011, 10, 20, 9, 30, 10, tzinfo=GMT(-5.5))

        See Also
        ----------
        datetime_to_str

        References
        ----------
        [1] boost date time to string conversion guide (http://www.boost.org/doc/libs/1_48_0/doc/html/date_time/date_time_io.html)

def str_to_datetime(self,format="%Y-%m-%dT%H:%M:%S%ZP"):
        """
        Create a new SArray with all the values cast to datetime. The string format is
        specified by the 'format' parameter.

        Parameters
        ----------
        format : str
            The string format of the input SArray. Default format is "%Y-%m-%dT%H:%M:%S%ZP".
            If format is "ISO", the the format is "%Y%m%dT%H%M%S%F%q"
        Returns
        -------
        out : SArray[datetime.datetime]
            The SArray converted to the type 'datetime'.

        Examples
        --------
        >>> sa = turicreate.SArray(["20-Oct-2011 09:30:10 GMT-05:30"])
        >>> sa.str_to_datetime("%d-%b-%Y %H:%M:%S %ZP")
        dtype: datetime
        Rows: 1
        datetime.datetime(2011, 10, 20, 9, 30, 10, tzinfo=GMT(-5.5))

        See Also
        ----------
        datetime_to_str

        References
        ----------
        [1] boost date time to string conversion guide (http://www.boost.org/doc/libs/1_48_0/doc/html/date_time/date_time_io.html)

        """
        if(self.dtype != str):
            raise TypeError("str_to_datetime expects SArray of str as input SArray")

        with cython_context():
            return SArray(_proxy=self.__proxy__.str_to_datetime(format))