title: Moving files and dir, even if they already exist in dest
body: <p>So I want to copy some files and directories from one location to another. Easy enough with <code>shutil.move</code>, but I run into problems when the files or directories are already in the destination. The error I get is <code>Destination path '...' already exists</code>. </p>
  
  <p>I tried <code>os.rename</code> and it didn't produce the desired results either. 
  Is there an easy way to copy files and dir structure to another location, even if those files and dir structure are already present in dest? </p>
  
  <p>Here's what I have now: </p>
  
  <pre><code>fileList = os.listdir('/Users/john.leschinski/Desktop/testSrc')  
  dest = '/Users/john.leschinski/Desktop/testMove'  
  for i in fileList:  
      src = '/Users/john.leschinski/Desktop/testSrc/' + i  
      shutil.move(src,dest)
  </code></pre>