OpenOPC.py 文件源码

def servers(self, opc_host='localhost'):
      """Return list of available OPC servers"""

      try:
         pythoncom.CoInitialize()
         servers = self._opc.GetOPCServers(opc_host)
         servers = [s for s in servers if s != None]
         return servers

      except pythoncom.com_error, err:
         error_msg = 'servers: %s' % self._get_error_str(err)
         raise OPCError, error_msg