title: Using Amazon s3 boto library, how can I get the URL of a saved key?
body: <p>I am saving a key to a bucket with:</p>
  
  <pre><code>    key = bucket.new_key(fileName)
      key.set_contents_from_string(base64.b64decode(data))
      key.set_metadata('Content-Type', 'image/jpeg')
      key.set_acl('public-read')
  </code></pre>
  
  <p>After the save is successful, how can I access the URL of the newly created file? </p>