grab.py

#!/usr/bin/env python

import requests
import sys
from bs4 import BeautifulSoup

def grab(keyword, author, out, page=1):
    url = ("http://www.youtube.com/user/%s/videos?sort=da&view=0&page=%s" 
            % (author, page))
    sys.stdout.write("Processing %s..." % url)
    soup = BeautifulSoup(requests.get(url).content)
    videos_container = soup.find("ol", {"class": "channel-videos-list"})

    try:
        videos = videos_container.find_all("li", {"class": "yt-c3-grid-item"})
    except AttributeError:
        sys.stdout.write(" FAILED. Retrying..")
        grab(keyword, author, out, page)
    else:
        if len(videos) > 0:
            count = 0
            for video in videos:
                detail = (video.find("h3", {"class":"yt-c3-grid-item-title"})
                            .find("a"))
                if detail.contents.__str__().find(keyword) >= 0:
                    title = detail.contents[0].strip()
                    url = detail['href']
                    out.write("%s#%s\r\n" % (url, title))
                    count += 1
            print " %s video links grabbed" % count

        if len(videos_container.contents.__str__()) > 10:
            grab(keyword, author, out, page=page+1)
        else:
            print " End of pages"

output = open("/tmp/videos.txt", "w")
grab("Opera Van Java", "gerandong24", out=output)