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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def set_data_location(self, current_extent, tag_location):  # pylint: disable=unused-argument
        # type: (int, int) -> None
        '''
        A method to set the new extent location that the data for this Directory
        Record should live at.

        Parameters:
         current_extent - The new extent.
        Returns:
         Nothing.
        '''
        if not self._initialized:
            raise pycdlibexception.PyCdlibInternalError('Directory Record not yet initialized')

        self.new_extent_loc = current_extent
        if self.ptr is not None:
            self.ptr.update_extent_location(current_extent)