Page scraping timeouts are not handled properly

[deoren]

Traceback (most recent call last):
  File "/usr/local/bin/email_ebook_deals.py", line 467, in 
    main()
  File "/usr/local/bin/email_ebook_deals.py", line 426, in main
    site_content = fetch_page(site)
  File "/usr/local/bin/email_ebook_deals.py", line 239, in fetch_page
    html_page = urllib2.urlopen(site['url'])
  File "/usr/lib/python2.6/urllib2.py", line 126, in urlopen
    return _opener.open(url, data, timeout)
  File "/usr/lib/python2.6/urllib2.py", line 391, in open
    response = self._open(req, data)
  File "/usr/lib/python2.6/urllib2.py", line 409, in _open
    '_open', req)
  File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.6/urllib2.py", line 1170, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.6/urllib2.py", line 1145, in do_open
    raise URLError(err)
urllib2.URLError: