How to use the aniso8601.compat function in aniso8601

#
    #returns True
    #
    #durationstr = 'P1Y1M'
    #components = ['P', 'Y', 'M', 'D']
    #
    #returns True
    #
    #durationstr = 'P1D1Y1M'
    #components = ['P', 'Y', 'M', 'D']
    #
    #returns False

    componentindex = 0

    for characterindex in compat.range(len(durationstr)):
        character = durationstr[characterindex]

        if character in componentorder:
            #This is a character we need to check the order of
            if character in componentorder[componentindex:]:
                componentindex = componentorder.index(character)
            else:
                #A character is out of order
                return False

    return True

# -*- coding: utf-8 -*-

# Copyright (c) 2016, Brandon Nielsen
# All rights reserved.
#
# This software may be modified and distributed under the terms
# of the BSD license.  See the LICENSE file for details.

from aniso8601 import compat

class DateResolution(object):
    Year, Month, Week, Weekday, Day, Ordinal = list(compat.range(6))

class TimeResolution(object):
    Seconds, Minutes, Hours = list(compat.range(3))