This book includes revisions for Python 3 as well as all of the classic topics covered, such as network protocols, network data and errors, email, server architecture, and and web applications. • Comprehensive coverage of Python 3's improved SSL support • How to create an asynchronous I/O loop on your own. • A look at the "asyncio" framework, which is included with Python 3.4. • The Flask web framework's URL-to-Python code connection. • How to safeguard your website from cross-site scripting and cross-site request forgery attacks. • How Django, a full-stack web framework, can automate the round journey from your database to the screen and back.