code: def detectSymbianOS(self):
          
          return UAgentInfo.deviceSymbian in self.__userAgent \
              or UAgentInfo.deviceS60 in self.__userAgent \
              or UAgentInfo.deviceS70 in self.__userAgent \
              or UAgentInfo.deviceS80 in self.__userAgent \
              or UAgentInfo.deviceS90 in self.__userAgent
docs: Return detection of SymbianOS
  
          Detects if the current device is any Symbian OS-based device,
          including older S60, Series 70, Series 80, Series 90, and UIQ,
          or other browsers running on these devices.