Book Image

Learning Python Networking - Second Edition

By : José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington
Book Image

Learning Python Networking - Second Edition

By: José Manuel Ortega, Dr. M. O. Faruque Sarker, Sam Washington

Overview of this book

Network programming has always been a demanding task. With full-featured and well-documented libraries all the way up the stack, Python makes network programming the enjoyable experience it should be. Starting with a walk through of today's major networking protocols, through this book, you'll learn how to employ Python for network programming, how to request and retrieve web resources, and how to extract data in major formats over the web. You will utilize Python for emailing using different protocols, and you'll interact with remote systems and IP and DNS networking. You will cover the connection of networking devices and configuration using Python 3.7, along with cloud-based network management tasks using Python. As the book progresses, socket programming will be covered, followed by how to design servers, and the pros and cons of multithreaded and event-driven architectures. You'll develop practical clientside applications, including web API clients, email clients, SSH, and FTP. These applications will also be implemented through existing web application frameworks.
Table of Contents (19 chapters)
Free Chapter
1
Section 1: Introduction to Network and HTTP Programming
4
Section 2: Interacting with APIs, Web Scraping, and Server Scripting
9
Section 3: IP Address Manipulation and Network Automation
13
Section 4: Sockets and Server Programming

Sending emails with SMTP through the smtplib library

In this section, we will learn about the SMTP protocol and introduce smtplib, a Python module that's used to send emails. We will also demonstrate how to send different types of email, such as simple text messages, emails with attachments, and emails with HTML content. We will also explore how to work with emails with SMTP authentication in Python 3.7.

SMTP protocol

SMTP is a set of rules for the transmission of messages from their origin to the destination and is used to transmit email messages to mail servers. SMTP uses port 25 to send or transmit mail messages. Email servers need to have this port open to listen for incoming connections.

In the connection between...