Get items from the playlist of Your Likes via YouTube Data API (See https://developers.google.com/youtube/v3/quickstart/python?hl=ja)

get_likes.py

#!/usr/bin/python

import httplib2
import os
import sys
import json

from googleapiclient.discovery import build
from google_auth_oauthlib.flow import InstalledAppFlow
from google.auth.transport.requests import Request

# get_likes.py <outputfile> [<n_items>]
outputfile = sys.argv[1]
n = int(sys.argv[2]) if len(sys.argv) == 3 else 100

# Path to your credential file
CLIENT_SECRETS_FILE = "client_secret.json"

SCOPES = ['https://www.googleapis.com/auth/youtube.readonly']
API_SERVICE_NAME = 'youtube'
API_VERSION = 'v3'

def get_authenticated_service():
  flow = InstalledAppFlow.from_client_secrets_file(CLIENT_SECRETS_FILE, SCOPES)
  credentials = flow.run_console()
  return build(API_SERVICE_NAME, API_VERSION, credentials = credentials)

service = get_authenticated_service()

remains = n
next_page_token = ''
results = []
while next_page_token is not None:
  playlistitems_list_request = service.playlistItems().list(
    playlistId='LM', # Playlist of Your Likes
    part="snippet",
    maxResults=n,
    pageToken=next_page_token,
  )

  playlistitems_list_response = playlistitems_list_request.execute()
  items = playlistitems_list_response["items"]
  results.extend(items)
  remains -= playlistitems_list_response["pageInfo"]["resultsPerPage"]
  if remains <= 0:
    break
  next_page_token = playlistitems_list_response["nextPageToken"]

out = json.dumps(results)

with open(outputfile, 'w') as f:
  f.write(out)

parse.rb

require 'json'
require 'date'

json = ARGF.read
items = JSON.parse(json)

date20230101 = Date.parse('2023-01-01')
items.each_with_index do |item, i|
	date = item["snippet"]["publishedAt"]
	if Date.parse(date) < date20230101
		break
	end
	title = item["snippet"]["title"]
	who = item["snippet"]["videoOwnerChannelTitle"].gsub(/ - Topic/, '')
	desc = item["snippet"]["description"]
	if desc =~ /Released on: ([\d\-]+)/
		release = $1
		print "#{i+1} #{title} by #{who}".ljust(50)
		puts "at #{release}"
		#puts "#{i+1},#{title},#{who},#{release}"
  else
		puts "#{i+1} #{title} by #{who}".ljust(50)
	end
end