(self, fieldname, column=None, reverse=False,
                      translate=False)
:param fieldname: the name of the field for which to get a reader.
        :param column: if passed, use this Column object instead of the one
            associated with the field in the Schema.
        :param reverse: if passed, reverses the order of keys returned by the
            reader's ``sort_key()`` method. If the column type is not
            reversible, this will raise a ``NotImplementedError``.
        :param translate: if True, wrap the reader to call the field's
            ``from_bytes()`` method on the returned values.
        :return: a :class:`whoosh.columns.ColumnReader` object.
def column_reader(self, fieldname, column=None, reverse=False,
                      translate=False):
        """

        :param fieldname: the name of the field for which to get a reader.
        :param column: if passed, use this Column object instead of the one
            associated with the field in the Schema.
        :param reverse: if passed, reverses the order of keys returned by the
            reader's ``sort_key()`` method. If the column type is not
            reversible, this will raise a ``NotImplementedError``.
        :param translate: if True, wrap the reader to call the field's
            ``from_bytes()`` method on the returned values.
        :return: a :class:`whoosh.columns.ColumnReader` object.
        """

        raise NotImplementedError
def column_reader ( self , fieldname , column = None , reverse = False , translate = False ) : raise NotImplementedError