def record_get_subfields(rec, tag, field_position_global=None,
                         field_position_local=None):
    """
    Return the subfield of the matching field.

    One has to enter either a global field position or a local field position.

    :return: a list of subfield tuples (subfield code, value).
    :rtype:  list
    """
    field = record_get_field(
        rec, tag,
        field_position_global=field_position_global,
        field_position_local=field_position_local)

    return field[0]
def record_get_subfields(rec, tag, field_position_global=None,
                         field_position_local=None):
    """
    Return the subfield of the matching field.

    One has to enter either a global field position or a local field position.

    :return: a list of subfield tuples (subfield code, value).
    :rtype:  list
    """
    field = record_get_field(
        rec, tag,
        field_position_global=field_position_global,
        field_position_local=field_position_local)

    return field[0]
def record_get_subfields ( rec , tag , field_position_global = None , field_position_local = None ) : field = record_get_field ( rec , tag , field_position_global = field_position_global , field_position_local = field_position_local ) return field [ 0 ]
Return the subfield of the matching field.

    One has to enter either a global field position or a local field position.

    :return: a list of subfield tuples (subfield code, value).
    :rtype:  list
Return the subfield of the matching field .