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      <span 
class="cmti-10">re </span>is a standard Python module. It handles regular expressions. For further information about <span 
class="cmti-10">re </span>you
  can read   <a 
href="http://python.org/doc/2.2/lib/module-re.html" class="url" ><span 
class="cmtt-10">http://python.org/doc/2.2/lib/module-re.html</span></a>