To work as of today, the v5 video request needs some extra massaging:

auth = "OAuth ..." # token easily grabbed from browser devtools, I'm not sure how volatile or personalized this is
cid = "..." # also easily grabbed, needs to match auth above
vod_info = requests.get("https://api.twitch.tv/kraken/videos/v" + sys.argv[1], headers={"Accept": "application/vnd.twitchtv.v
5+json", "Client-ID": cid, "Authorization": auth}).json()

After this small update, the rest of the script worked perfectly to get me a chat transcript I was looking for a timestamp in 😎

Is there a way to make this work with subscribers-only VODs? Any help will be appreciated!

One download kept failing at random chunks (46/248, 115/248, 185/248) with the following error:

downloading chunk 185 / 248got an error in chat message response: {u'errors': [{u'status': 500, u'detail': u'[503] {"error":"ReduceSearchPhaseException[Failed to execute phase [fetch], [reduce] ]; nested: EsRejectedExecutionException[rejected execution (queue capacity 1000) on org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction$2@4ea78e3a]; ","status":503}'}]}

Managed to download it after about 100 (!) tries.

Is there a way to have it retry/resume automatically upon such errors?
Or an unattended way to do this?

Thanks.

error while downloading chunk #1: HTTPConnectionPool(host='rechat.twitch.tv', po
rt=80): Max retries exceeded with url: /rechat-messages?start=1502496578&video_i
d=v166276411 (Caused by NewConnectionError('<requests.packages.urllib3.connectio
n.HTTPConnection object at 0x03588D50>: Failed to establish a new connection: [E
rrno 11004] getaddrinfo failed',))

Same error all tries on VODs from two different channels.

Is the issue on my end?

Since now Twitch require a Client ID to API Requests, and you script need this new feature to work.
Look here to know more https://github.com/justintv/Twitch-API

If you can add this new feature like to use your script again.
I cant do this because i not know almost nothing about Python XD
Nice work you have done until now.

I might be doing something wrong, but i just get a syntax error, whenever i'm trying to run the script.