code: def open(self, section_index=0):
          
          uri = self._sections[section_index][1]
          if len(uri.split()) == 1:
              self._open_url(uri)
          else:
              if self._verbose:
                  print "running command: %s" % uri
              p = popen(uri, shell=True)
              p.wait()
docs: Launch a help section.