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プレイリストとその中の動画リストを別のテキスト ファイルに取得するコードを作成しました。

#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""

YouTube Playlist Extrator.
A tool to extract playlists from YouTube API which in todays YouTube page format is very difficult to extract.
It also extracts video lists per playlist and hence takes bit longer to run for long playlists.

"""


#from profiler import Profiler
from xml.dom.minidom import parseString
import os

try:
    import urllib.request as urlLibReq
    PY3 = True
except:
    import urllib as urlLibReq
    PY3 = False

def getInput():
    if PY3:
        return input("Enter username of YouTube channel: ")
    elif not PY3:
        return raw_input("Enter username of YouTube channel: ")

def xmlParser(url):
  page = urlLibReq.urlopen(url)
  text = page.read().decode("utf8")
  return parseString(text)

def extractplaylist(userId):
    url = "https://gdata.youtube.com/feeds/api/users/"+ userId +"/playlists?v=2"
    dom = xmlParser(url)
    total = int(dom.getElementsByTagName("openSearch:totalResults")[0].firstChild.nodeValue)
    startIndex, listEntry = 1 , []
    while startIndex <= total:
        url_new = url + "&max-results=50&start-index="+ str(startIndex)
        dom = xmlParser(url_new)
        entry = dom.getElementsByTagName("entry")
        for node in entry:
            id_data = node.getElementsByTagName("id")[0].firstChild.nodeValue
            id_split = id_data.split(':')
            playlist_id = id_split[5]
            playlist_title = node.getElementsByTagName("title")[0].firstChild.nodeValue
            extractvideolist(userId, playlist_id, playlist_title)
            listEntry.append(str(playlist_title))
            startIndex += 1
    listEntry.sort()
    writer = open(userId+"_playlist.txt","w")
    writer.write("\r\n".join(map(str, listEntry)))
    writer.close()

def extractvideolist(userId, playlist_id, playlist_title):
    url = "http://gdata.youtube.com/feeds/api/playlists/"+ playlist_id +"?v=2"
    dom = xmlParser(url)
    total = int(dom.getElementsByTagName("openSearch:totalResults")[0].firstChild.nodeValue)
    startIndex, listEntry = 1 , []
    while startIndex <= total:
        url_new = url + "&max-results=50&start-index="+ str(startIndex)
        dom = xmlParser(url_new)
        entry = dom.getElementsByTagName("entry")
        for node in entry:
            video_title = node.getElementsByTagName("title")[0].firstChild.nodeValue
            listEntry.append(str(video_title))
            startIndex += 1
    playlist_title = playlist_title.replace("'","\'")
    writer = open(playlist_title+"_videolist.txt","w")
    writer.write("\r\n".join(map(str, listEntry)))
    writer.close()
    print("written", playlist_title)
    try: os.mkdir(userId)
    except: pass
    os.system('mv "'+ playlist_title +'_videolist.txt" '+ userId)


if __name__ == "__main__":
    name = getInput()
    extractplaylist(name)
    #Profiler.report()

プレイリストに削除されたビデオがある場合、コードは失敗します。そのようなことにどう対処すればよいですか？

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1 に答える 1