title: Python regex split case insensitive in 2.6
body: <p>I have the following code that works in Python 2.7:</p>
  
  <pre><code>entry_regex = '(' + search_string + ')'
  entry_split = re.split(entry_regex, row, 1, re.IGNORECASE)
  </code></pre>
  
  <p>I need to make it work in Python 2.6 as well as in Python 2.7 and 2.6 re.split doesn't accept a flag (re.IGNORECASE) as forth parameter. Any help? Thanks</p>