The server socket is a program that listens for incoming connections from clients. Once a connection is established, the server creates a new socket object to handle the communication with the client. Here is a basic example of a server socket program in Python:<\/p>\n\n\n\n
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import socket\n\nHOST = '127.0.0.1' # Standard loopback interface address (localhost)\nPORT = 65432 # Port to listen on (non-privileged ports are > 1023)\n\nwith socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:\n s.bind((HOST, PORT))\n s.listen()\n conn, addr = s.accept()\n with conn:\n print('Connected by', addr)\n while True:\n data = conn.recv(1024)\n if not data:\n break\n conn.sendall(data)<\/code><\/pre>\n\n\n\n<\/p>\n\n\n\n
In the above code, we first import the socket module and define the IP address and port number for the server. Then we create a new socket object ‘s’ using the AF_INET address family and SOCK_STREAM socket type.<\/p>\n\n\n\n
We then bind the socket to our defined IP address and port number, and start listening for incoming connections using the s.listen() method. Once a client connects, the s.accept() method returns a new socket object ‘conn’ representing the connection, along with the address of the client.<\/p>\n\n\n\n
We then use a while loop to continuously receive data from the client using conn.recv() and send data back to the client using conn.sendall() until there is no more data to receive.<\/p>\n\n\n\n
Client Socket<\/strong><\/p>\n\n\n\nThe client socket is a program that initiates a connection to the server socket. Here is a basic example of a client socket program in Python:<\/p>\n\n\n\n
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import socket\n\nHOST = '127.0.0.1' # The server's hostname or IP address\nPORT = 65432 # The port used by the server\n\nwith socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:\n s.connect((HOST, PORT))\n s.sendall(b'Hello, world')\n data = s.recv(1024)\n\nprint('Received', repr(data))<\/code><\/pre>\n\n\n\n<\/p>\n\n\n\n
In the above code, we again import the socket module and define the IP address and port number for the server. We then create a new socket object ‘s’ using the AF_INET address family and SOCK_STREAM socket type.<\/p>\n\n\n\n
We then initiate a connection to the server using s.connect() and send data to the server using s.sendall(). Finally, we receive data from the server using s.recv() and print the received data.<\/p>\n\n\n\n
Conclusion<\/p>\n\n\n\n
We have explored how to create client and server sockets using Python along with a basic example code. Sockets are a powerful tool for network communication and are used extensively in a wide range of applications. With the above knowledge, you can build complex network applications in Python.<\/p>\n\n\n\n
This is all for now. Hope you enjoy that.<\/p>\n\n\n\n
By Asahi<\/p>\n
\n <\/g:plusone><\/div>\n
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