Using the socket Module
The socket module is the foundation for network programming in Python. It provides the tools you need to create, configure, and use network connections, allowing your code to communicate with other computers over the internet or a local network. With the socket module, you can build both clients and servers, send and receive data, and control how your application interacts with the network. Whether you want to fetch a web page, transfer files, or build a chat application, understanding how to use the socket module is an essential first step.
123456789101112import socket # Create a socket object using IPv4 and TCP s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # Connect to example.com on port 80 (HTTP) s.connect(("example.com", 80)) print("Connected to example.com on port 80") # Always close the socket when done s.close()
You start by importing the socket module and creating a socket with socket.socket(), choosing IPv4 (AF_INET) and TCP (SOCK_STREAM). You then connect to example.com on port 80, the standard port for HTTP traffic. After confirming the connection, you close the socket to release system resources. This follows the basic pattern, create, connect, communicate, close.
TCP is used here because it is reliable and ensures data is delivered correctly between the client and server.
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The socket module is the foundation for network programming in Python. It provides the tools you need to create, configure, and use network connections, allowing your code to communicate with other computers over the internet or a local network. With the socket module, you can build both clients and servers, send and receive data, and control how your application interacts with the network. Whether you want to fetch a web page, transfer files, or build a chat application, understanding how to use the socket module is an essential first step.
123456789101112import socket # Create a socket object using IPv4 and TCP s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # Connect to example.com on port 80 (HTTP) s.connect(("example.com", 80)) print("Connected to example.com on port 80") # Always close the socket when done s.close()
You start by importing the socket module and creating a socket with socket.socket(), choosing IPv4 (AF_INET) and TCP (SOCK_STREAM). You then connect to example.com on port 80, the standard port for HTTP traffic. After confirming the connection, you close the socket to release system resources. This follows the basic pattern, create, connect, communicate, close.
TCP is used here because it is reliable and ensures data is delivered correctly between the client and server.
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