title: python regex match and replace dates
body: <p>I need to match dates in form:</p>
  
  <p>January 10, 2012</p>
  
  <p>And replace in form:</p>
  
  <p>10 January 2012</p>
  
  <p>Here is what I have so far:</p>
  
  <pre><code>        pattern = re.findall(r'(?:January|February|March|April|May|June|July|August|September|October|November|December)\s\d\d,\s\d{4}', text)
          print pattern
  </code></pre>
  
  <p>How do i replace?</p>