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.__stripValue(self.__sendCommand(WPANCTL_CMD + 'getporp -v Thread:Parent')).split(' ')
  
          return parentInfo[0]