Optionally, the server program can terminate when the client program ends. Alternatively, the server can continue running indefinitely or stop based on a specific command in the client’s request.<\/p>\n
Python Socket Server<\/h4>\n
We’ll save our Python socket server program as socket_server.py. To enable Python socket connections, we start by importing the socket module. Next, we perform a series of tasks to establish a connection between the server and the client. We can obtain the host address using the socket.gethostname() function. Using a port address above 1024 is advisable because port numbers below 1024 are reserved for standard internet protocols. Look at the example code for a Python socket server below; the comments will guide you through understanding the code.<\/p>\n
Example:<\/h4>\n
First, create the “ServerDemo.py” file<\/p>\n
import socket\r\ndef custom_server():\r\n\u00a0 \u00a0 # get the server's hostname\r\n\u00a0 \u00a0 server_host = socket.gethostname()\r\n\u00a0 \u00a0 server_port = 5001\u00a0 # choose a port number above 1024\r\n\u00a0 \u00a0 server_socket = socket.socket()\u00a0 # create a socket instance\r\n\u00a0 \u00a0 server_socket.bind((server_host, server_port))\u00a0 # bind host address and port together\r\n\u00a0 \u00a0 # configure how many clients the server can listen to simultaneously\r\n\u00a0 \u00a0 server_socket.listen(2)\r\n\u00a0 \u00a0 connection, client_address = server_socket.accept()\u00a0 # accept a new connection\r\n\u00a0 \u00a0 print(\"Connection from: \" + str(client_address)\r\n\u00a0 \u00a0 while True:\r\n\u00a0 \u00a0 \u00a0 \u00a0 # receive data stream; won't accept data packets greater than 1024 bytes\r\n\u00a0 \u00a0 \u00a0 \u00a0 data = connection.recv(1024).decode()\r\n\u00a0 \u00a0 \u00a0 \u00a0 if not data:\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 # if no data is received, break out of the loop\r\n\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 break\r\n\u00a0 \u00a0 \u00a0 \u00a0 print(\"From connected user: \" + str(data))\r\n\u00a0 \u00a0 \u00a0 \u00a0 data = input(' -> ')\r\n\u00a0 \u00a0 \u00a0 \u00a0 connection.send(data.encode())\u00a0 # send data to the client\r\n\u00a0 \u00a0 connection.close()\u00a0 # close the connection\r\nif __name__ == '__main__':\r\n\u00a0 \u00a0 custom_server()<\/code><\/pre>\n\t\t\n\t\t\t \n \n \n \n \n \n \t\t\n\t\t\t\t\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t <\/div>\n <\/div>\n <\/div>\n <\/section>\n \t\t<\/div>\n\t\t<\/div>\n<\/div>\nOutput:<\/h4>\npython3 ServerDemo.py<\/code><\/pre>\n
![\"\"](\"https:\/\/accuweb.cloud\/resource\/wp-content\/uploads\/2024\/01\/pythonsocket1.png\")
<\/p>\n![\"\"](\"https:\/\/accuweb.cloud\/resource\/wp-content\/uploads\/2024\/01\/pythonsocket2.png\")
<\/p>\n![\"\"](\"https:\/\/accuweb.cloud\/resource\/wp-content\/uploads\/2024\/01\/pythonsocket3.png\")
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