title: traversing multiple files and opening them
body: <p>I am new to python and not adept to it. I need to traverse a huge list of directories which contain zipped files within them. While this can be done via the method,</p>
  
  <pre><code>for file in list:
   for filename in file:
    with open.gizp(filename) as fileopen:
     for line in fileopen:
       process
  </code></pre>
  
  <p>The time taken would be take a few days. Would i be able to use any function that allows me to traverse other parts of the directory concurrently to perform the same function and not have any repeats in the traversal?</p>
  
  <p>Any help or direction would be greatly appreciated </p>