title: Python os.path.join() on a list
body: <p>I can do</p>
  
  <pre><code>&gt;&gt;&gt; os.path.join("c:/","home","foo","bar","some.txt")
  'c:/home\\foo\\bar\\some.txt'
  </code></pre>
  
  <p>But, when I do</p>
  
  <pre><code>&gt;&gt;&gt; s = "c:/,home,foo,bar,some.txt".split(",")
  &gt;&gt;&gt; os.path.join(s)
  ['c:/', 'home', 'foo', 'bar', 'some.txt']
  </code></pre>
  
  <p>What am I missing here?</p>