title: Clean URL with BeautifulSoup
body: <p>My script </p>
  
  <pre><code>import BeautifulSoup as bs
  from BeautifulSoup import BeautifulSoup 
  url_list = sys.argv[1]
  urls = [tag['href'] for tag in 
      BeautifulSoup(open(url_list)).findAll('a')]
  </code></pre>
  
  <p>returns</p>
  
  <pre><code>[u'http://www.youtube.com/watch?v=Gg81zi0pheg', u'http://www.youtube.com/watch?v=pP9VjGmmhfo', u'http://www.youtube.com/watch?v=yTA1u6D1fyE', u'http://www.youtube.com/watch?v=4v8HvQf4fgE', u'http://www.youtube.com/watch?v=e9zG20wQQ1U', u'http://www.youtube.com/watch?v=khL4s2bvn-8', u'http://www.youtube.com/watch?v=XTndQ7bYV0A', u'http://www.youtube.com/watch?v=xTT2MqgWRRc', u'http://www.youtube.com/watch?v=J2ZYQngwSUw', u'http://www.youtube.com/watch?v=9RZwvg7unrU', u'http://www.youtube.com/watch?v=vz3qOYWwm10', u'http://www.youtube.com/watch?v=yarv52QX_Yw', u'http://www.youtube.com/watch?v=LRREY1H3GCI']
  </code></pre>
  
  <p>I would like it to return this:</p>
  
  <pre><code>http://www.youtube.com/watch?v=Gg81zi0pheg
  http://www.youtube.com/watch?v=pP9VjGmmhfo
  http://www.youtube.com/watch?v=yTA1u6D1fyE
  http://www.youtube.com/watch?v=4v8HvQf4fgE
  http://www.youtube.com/watch?v=e9zG20wQQ1U
  http://www.youtube.com/watch?v=khL4s2bvn-8
  http://www.youtube.com/watch?v=XTndQ7bYV0A
  http://www.youtube.com/watch?v=xTT2MqgWRRc
  http://www.youtube.com/watch?v=J2ZYQngwSUw
  http://www.youtube.com/watch?v=9RZwvg7unrU
  http://www.youtube.com/watch?v=vz3qOYWwm10
  http://www.youtube.com/watch?v=yarv52QX_Yw
  http://www.youtube.com/watch?v=LRREY1H3GCI
  </code></pre>
  
  <p>I am having a really hard time wrapping my head around BeautifulSoup. Anything would help. Thank you for your time.</p>