(python) get video id list from youtube page

import os
import re
import urllib.request

f = urllib.request.urlopen('https://www.youtube.com/c/highwill76/videos')
contents = f.read().decode('utf-8')
urls = re.findall(r'watch\?v=([^"]+)', contents)
unique_urls = []
for url in urls:
    if url not in unique_urls:
        unique_urls.append(url)
        print(url)