Script to add id3v2 chapters to .mp3 files

chapters.py

from mutagen.id3 import ID3, CTOC, CHAP, TIT2, CTOCFlags
import time
import datetime

audioFile = input("Audio file: ")

audio = ID3(audioFile)

numberOfChapters = int(input("Number of chapters: ")) + 1

chapters = {}

for x in range(1, numberOfChapters):
    print("Chapter "+str(x))

    title = input("Chapter title: ")

    startTime = input("Chapter start time (H:M:S): ")
    a = time.strptime(startTime, "%H:%M:%S")
    startTime = datetime.timedelta(hours=a.tm_hour, minutes=a.tm_min, seconds=a.tm_sec).seconds * 1000

    endTime = input("Chapter end time (H:M:S): ")
    a = time.strptime(endTime, "%H:%M:%S")
    endTime = datetime.timedelta(hours=a.tm_hour, minutes=a.tm_min, seconds=a.tm_sec).seconds * 1000

    chapters["ch"+str(x)] = {"startTime": startTime, "endTime": endTime, "title": title}

tocList = ','.join(chapters.keys())

for key, value in chapters.items():
    audio.add(CHAP(element_id=key, start_time=value["startTime"], end_time=value["endTime"], sub_frames=[TIT2(text=[value["title"]])]))

audio.add(CTOC(element_id=u"toc", flags=CTOCFlags.TOP_LEVEL | CTOCFlags.ORDERED, child_element_ids=[tocList], sub_frames=[TIT2(text=[u"Table of contents"])]))

audio.save()