crawling using queue

#!/usr/bin/env python
# encoding: utf-8

import urllib, urllib2, re
import threading, Queue

somewebsite = 'xxx'

urls5 = []
for i in range(50001, 60000):
    url = somewebsite + str(i)
    urls5.append(url)

class MultiUrl(threading.Thread):
    def __init__(self, queue):
        threading.Thread.__init__(self)
        self.queue = queue
    def run(self):
        while True:
            url = self.queue.get()
            try:
                Go(url)
            except:
                continue
            self.queue.task_done()


def main():
    queue = Queue.Queue()
    for i in range(16):
        t = MultiUrl(queue)
        t.setDaemon(True)
        t.start()

    for url in urls5:
        queue.put(url)
    queue.join()

def Go(url):
    try:
        print "Now grabbing...", url
        getArticle(url)
        if (OriginalContentList != []):
            writeContent()
    except:
        pass

def getArticle(url):
    global content, Content
    i = re.findall('\d+', url)[0]
    ArticleID = str(i)
    try:
        content = urllib2.urlopen(url).read()
        Content = urllib.unquote(content)
    except:
        OriginalContentList = []
        pass

def writeContent():
    # Origin Content
    try:
        filename = ArticleID + '.txt'
        file_out = open(filename, 'w')
        file_out.write(Content)
        file_out.write('\n')
        file_out.close()
    except:
        pass

if __name__ == '__main__':
    main()