title: python if file does not exist fails
body: <p>so I have a loop that checks folder if it contains *.zip file</p>
  
  <pre><code>for file in glob.glob( os.path.join(rootdir, '*.zip')):
          print "zip", file
          #Check if file does not exist
          if not os.path.exists(file):
              print "No files"
              #return
          else:
              some code
  </code></pre>
  
  <p>Now if file exist else works, but if there is no zip file print does not happen</p>
  
  <p>Any suggestions??
  Thank you</p>