Please take the following python client source code and add commenting and good programming practice updates:

from socket import * serverName = hostname serverPort = 12000 clientSocket = socket(AF_INET, SOCK_DGRAM) message = raw_input(Input lowercase sentence:) clientSocket.sendto(message.encode(),(serverName, serverPort)) modifiedMessage, serverAddress = clientSocket.recvfrom(2048) print(modifiedMessage.decode()) clientSocket.close()