title: Renaming filenames using python
body: <p>I need to simply add the word "_Manual" onto the end of all the files i have in a specific directory
  Here is the script i am using at the moment - i have no experience with python so this script is a frankenstine of other scripts i had lying around!</p>
  
  <p>It doesn't give any error messages but it also doesnt work..</p>
  
  <pre><code>folder = "C:\Documents and Settings\DuffA\Bureaublad\test"
  
  import os, glob
  
  for root, dirs, filenames in os.walk(folder):
      for filename in filenames:
          filename_split = os.path.splitext(filename) # filename and extensionname (extension in [1])
          filename_zero = filename_split[0]
          os.rename(filename_zero, filename_zero + "_manual")
  </code></pre>
  
  <p>I am now using</p>
  
  <pre><code>folder = "C:\Documents and Settings\DuffA\Bureaublad\test"
  import os # glob is unnecessary
  for root, dirs, filenames in os.walk(folder):
      for filename in filenames:
          fullpath = os.path.join(root, filename)
          filename_split = os.path.splitext(fullpath) # filename and extensionname (extension in [1])
          filename_zero, fileext = filename_split
          print fullpath, filename_zero + "_manual" + fileext
          os.rename(fullpath, filename_zero + "_manual" + fileext)
  </code></pre>
  
  <p>but it still doesnt work.. 
  it doesnt print anything and nothing gets changed in the folder!</p>