Useful in many roles, from design and prototyping to testing, deployment, and maintenance, Python is consistently ranked among today's most popular programming languages. The third edition of this practical book provides a quick reference to the language—including Python 3.5, 2.7, and highlights of 3.6—commonly used areas of its vast standard library, and some of the most useful third-party modules and packages.Ideal for programmers with some Python experience, and those coming to Python from other programming languages, this book covers a wide range of application areas, including web and network programming, XML handling, database interactions, and high-speed numeric computing. Discover how Python provides a unique mix of elegance, simplicity, practicality, and sheer power.This edition covers:Python syntax, Object-Oriented Python, standard library modules, and third-party Python packagesPython's support for file and text operations, persistence and databases, concurrent execution, and numeric computationsNetworking basics, event-driven programming, and client-side network protocol modulesPython extension modules, and tools for packaging and distributing extensions, modules, and applications Ask any Python aficionado and you'll hear that Python programmers have it all: an elegant language that offers object-oriented programming support, a readable, maintainable syntax, integration with C components, and an enormous collection of precoded standard library and extension modules. Moreover, Python is easy to learn but powerful enough to take on the most ambitious programming challenges. But what Python programmers have lacked is one concise and clear reference resource, with the appropriate measure of guidance in how best to use Python's great power. Now Python in a Nutshell fills this need. In the tradition of O'Reilly's "In a Nutshell" series, this book offers Python programmers one place to look when they need help remembering or deciphering the syntax of this open source language and its many modules. This comprehensive reference guide makes it easy to look up all the most frequently needed information--not just about the Python language itself, but also the most frequently used parts of the standard library and the most important third-party extensions. Python in a Nutshell focuses on Python 2.2 (and all its point releases), currently the most stable and widespread Python release. This book includes: A fast-paced tutorial on the syntax of the Python language itself An explanation of object-oriented programming in Python, covering both the classic and new-style object models Coverage of other core topics, including exceptions, modules, strings, and regular expressions A quick reference for Python's built-in types and functions, as well as the key modules in the Python standard library, including sys, os, time, thread, math, and socket, among many others Reference material on important third-party extensions, such as Numeric and Tkinter Information about extending Python and embedding it into other applications Python in a Nutshell provides a solid, no-nonsense quick reference to information that programmers rely on the most. This latest addition to the best-selling "In a Nutshell" series will immediately earn its place in any Python programmer's library This Book Provides A Quick Reference To The Language, Including Python 3.5, 2.7 And Highlights Of 3.6. It Covers A Wide Range Of Application Areas, Including Web And Network Programming, Xml Handling, Database Interactions, And High-speed Numeric Computing.