Welcome to the advanced networking tutorials section in Python. This page will guide you through the intricacies of networking using Python, covering topics such as sockets, TCP/IP, and more.

Table of Contents

Introduction

Networking is a crucial aspect of modern computing. Python provides a rich set of libraries to handle networking tasks efficiently. Whether you are developing a web server, a client application, or a network tool, Python has you covered.

Sockets

Sockets are the fundamental building blocks of network communication. In Python, you can use the socket module to create and manage sockets.

import socket

# Create a socket object
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Get local machine name
host = socket.gethostname()
port = 12345

# Bind to the port
s.bind((host, port))

# Listen to incoming connections
s.listen(5)

# Accept a connection
conn, addr = s.accept()
print('Connected by', addr)

# Send data
conn.send('Thank you for connecting')

# Close the connection
conn.close()
s.close()

TCP/IP

TCP/IP is a suite of communication protocols used for the internet. Python provides the socket module to work with TCP/IP.

import socket

# Create a socket object
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Connect to the server
s.connect(('www.example.com', 80))

# Send data
s.sendall(b'GET / HTTP/1.1\r\nHost: www.example.com\r\n\r\n')

# Receive data
data = b''
while True:
    packet = s.recv(4096)
    if not packet:
        break
    data += packet

# Close the connection
s.close()

# Print the received data
print(data.decode('utf-8'))

SSL/TLS

SSL/TLS is used to secure network communication. Python provides the ssl module to work with SSL/TLS.

import socket
import ssl

# Create a socket object
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Wrap the socket with SSL
ssl_sock = ssl.wrap_socket(s, cert_reqs='required', server_side=True)

# Bind to the port
ssl_sock.bind(('localhost', 443))

# Listen to incoming connections
ssl_sock.listen(5)

# Accept a connection
conn, addr = ssl_sock.accept()
print('Connected by', addr)

# Send data
conn.send('Thank you for connecting')

# Close the connection
conn.close()
ssl_sock.close()

Further Reading

For more information on networking in Python, you can refer to the following resources:

Networking