title: Python: How can I find all files with a particular extension?
body: <p>I am trying to find all the <code>.c</code> files in a directory using Python. </p>
  
  <p>I wrote this, but it is just returning me all files - not just <code>.c</code> files.</p>
  
  <pre><code>import os
  import re
  
  results = []
  
  for folder in gamefolders:
      for f in os.listdir(folder):
          if re.search('.c', f):
              results += [f]
  
  print results
  </code></pre>
  
  <p>How can I just get the <code>.c</code> files?</p>