docs: def getParentAddress(self):
          """get Thread device's parent extended address and rloc16 short address
  
          Returns:
              The extended address of parent in hex format
          """
          print '%s call getParentAddress' % self.port
          parentInfo = []
          parentInfo = self.__sendCommand('parent')
  
          for line in parentInfo:
              if 'Done' in line:
                  break
              elif 'Ext Addr' in line:
                  eui = line.split()[2]
                  print eui
              #elif 'Rloc' in line:
              #    rloc16 = line.split()[1]
              #    print rloc16
              else:
                  pass
  
          return int(eui, 16)