Python Multi-threaded server

is divided into two parts, one for updating the data, and the other for responding to client requests.

From Socketserver import TCPServer, streamrequesthandlerfrom time import ctimefrom socketserver Import Threadingtcpserverimport tracebackimport Threadingmutex = Threading. Lock () HOST = "127.0.0.1" #HOST = "121.40.152.123" PORT_RECV = 6000addr_recv = (host,port_recv) Int = [I for I in range (101) ]dict_ele = {' 001 ': ' + '} for I in range (101): Key_ele = str (i) If Len (key_ele) = = 1:key_ele = ' xx ' + key_el E dict_ele.update ({key_ele: "{"}) Elif len (key_ele) = = 2:key_ele = ' 0 ' + key_ele dict_ele.update ({key_ele: "}") Else:dict_ele.update ({key_ele: "}") Class Recv_data_from_vehicle_requesthandle (streamreques Thandler): def handle (self): #data = self.rfile.readline () data = SELF.REQUEST.RECV (1024x768) If Len (d  ATA) = = 12:if Data[0] = = ' $ ' and data[10:12] = = ' \ r \ n ': Key = data[3:6] Value = DATA[7:10] If Key.isdigit (): If int (Key) <= and int (KeY) >= 0:mutex.acquire () dict_ele.update ({key:value}) #need protect Print Key,dict_ele[key] Mutex.release () self.wfile.write (d Ict_ele[key]) else:print "Overflow" else:p        Rint "Key Error" else:print "bit error!"        Else:print "Recv error!" Def recv_data_from_vehicle (): Tcpserv = Threadingtcpserver (addr_recv,recv_data_from_vehicle_requesthandle) TcpServ.                Serve_forever () class Query_data_requesthandle (Streamrequesthandler): def handle (self): if 1:try:                  #data = "$NUM 001\r\n" #print len (data) #data = SELF.REQUEST.RECV (1024) data = Self.rfile.readline () #read Data index = "001" #initialize print "Recv f Rom (%r):%r "% (self.client_aDdress,data) #print Data[4:7] #print "len=:", Len (data) error_buf = ' $DATA ' + Index + ', ' + ' Err ' + ' \ r \ n ' If len (data) = = 9:if Data[0] = = ' $ ' and data[7:9] = = ' \ r \ n ': index = data[4:7] If Index.isdigit (): If int (i Ndex) <= and int (index) >= 0:mutex.acquire () Sen D_buf = ' $DATA ' + index + ', ' + dict_ele[index] + ' \ r \ n ' #need protect Self.wfile.write (Send                            _BUF) print "Send_buf:", Send_buf mutex.release () Else:print "index including other char" Er                        Ror_buf = ' $DATA ' + index + ', ' + ' Err ' + ' \ r \ n ' self.wfile.write (ERROR_BUF)          Else                  Print "index over" error_buf = ' $DATA ' + index + ', ' + ' Err ' + ' \ r \ n '                Self.wfile.write (ERROR_BUF) else:print "bit error!"               Else:print "Recv error!" # print Self.request.threading.Thread.getName () # Sleep (5) Except:traceback.print _exc () def query_data (): Port_query = 6001 Addr_query = (host,port_query) Server = Threadingtcpserver ( Addr_query,query_data_requesthandle) Server.serve_forever () def main (): Recv_thread = Threading. Thread (target = recv_data_from_vehicle) Query_thread = Threading. Thread (target = query_data) Recv_thread.start () Query_thread.start () if __name__ = = "__main__": Main ()

Python Multi-threaded server