Python 201
Python 201
Intermediate Python
About the Book
Python 201 is the sequel to my first book, Python 101. If you already know the basics of Python and now you want to go to the next level, then this is the book for you! This book is for intermediate level Python programmers only. There won't be any beginner chapters here. This book is based on Python 3.
The book will be broken up into five parts. Here's how:
Part I - Intermediate Modules
Chapter 1 - The argparse module
Chapter 2 - The collections module
Chapter 3 - The contextlib module (Context Managers)
Chapter 4 - The functools module (Function overloading, caching, etc)
Chapter 5 - All about imports
Chapter 6 - The importlib module
Chapter 7 - The itertools module
Chapter 8 - The re module (An Intro to Regex in Python)
Chapter 9 - The typing module (Type Hinting)
Part II - Odds and Ends
Chapter 10 - generators / iterators
Chapter 11 - map, filter, reduce
Chapter 12 - unicode
Chapter 13 - benchmarking
Chapter 14 - encryption
Chapter 15 - Connecting to databases
Chapter 16 - super
Chapter 17 - descriptors (magic methods)
Chapter 18 - Scope (local, global and the new non_local)
Part III - Web
Chapter 19 - Web scraping
Chapter 20 - Working with web APIs
Chapter 21 - ftplib
Chapter 22 - urllib
Part IV - Testing
Chapter 23 - Doctest
Chapter 24 - unittest
Chapter 25 - mock
Chapter 26 - coverage.py
Part V - Concurrency
Chapter 27 - The asyncio module
Chapter 28 - The threading module
Chapter 29 - The multiprocessing module
Chapter 30 - The concurrent.futures module
About the Author
Bundles that include this book
About the Contributors
Illustrator
Varya Kolesnikova is a talented illustrator from St. Petersburg, Russia. Varya did the cover art for the book, Python 201: Intermediate Python by Michael Driscoll. You can see some of her other art on her Behance profile page
Table of Contents
-
Introduction
-
- About the Author
- Conventions
- Requirements
- Reader Feedback
- Errata
- Code Examples
-
- Part I - The Intermediate Modules
-
Chapter 1 - An Intro to Argument Parsing using argparse
-
- Getting Started
- Adding Arguments
- Short Options and Long Options
- Options that Conflict
- Wrapping Up
-
-
Chapter 2 - The collections module
-
- ChainMap
- Counter
- defaultdict
- deque
- namedtuple
- OrderedDict
- Wrapping Up
-
-
Chapter 3 - Context Managers
-
- Creating a Context Manager class
- Creating a Context Manager using contextlib
- contextlib.closing(thing)
- contextlib.suppress(*exceptions)
- contextlib.redirect_stdout / redirect_stderr
- ExitStack
- Reentrant Context Managers
- Wrapping Up
-
-
Chapter 4 - The functools module
-
- Caching with functools.lru_cache
- functool.partial
- Function Overloading with functools.singledispatch
- functools.wraps
- Wraps to the Rescue!
- Wrapping Up
-
-
Chapter 5 - All About Imports
-
- Regular Imports
- Using “from module import something”
- Relative Imports
- Optional Imports
- Local Imports
- Import Pitfalls
- Wrapping Up
-
-
Chapter 6 - The importlib Module
-
- Dynamic Imports
- Module Import Checking
- Import From Source File
- import_from_github_com
- Wrapping Up
-
-
Chapter 7 - Iterators and Generators
-
- Iterators
- Creating Your Own Iterators
- Generators
- Wrapping Up
-
-
Chapter 8 - The itertools Module
-
- The Infinite Iterators
- Iterators That Terminate
- The Combinatoric Generators
- Wrapping Up
-
-
Chapter 9 - Regular Expressions
-
- The Matching Characters
- Pattern Matching Using search
- Escape Codes
- Compiling
- Compilation Flags
- Finding Multiple Instances
- Backslashes Are Complicated
- Wrapping Up
-
-
Chapter 10 - The typing Module
-
- Type Hints and Overloaded Functions
- Wrapping Up
-
- Part II - Odds and Ends
-
Chapter 11 - Python Built-ins
-
- any
- enumerate
- eval
- filter
- map
- zip
- Wrapping Up
-
-
Chapter 12 - Unicode
-
- Encoding / Decoding
- Wrapping Up
-
-
Chapter 13 - Benchmarking
-
- timeit
- Importing timeit for Testing
- Use a decorator
- Create a Timing Context Manager
- cProfile
- line_profiler
- memory_profiler
- profilehooks
- Wrapping Up
-
-
Chapter 14 - Encryption and Cryptography
-
- Hashing
- Key Derivation
- PyCrypto
- The cryptography Package
- Wrapping Up
-
-
Chapter 15 - Databases
-
- Basic SQL Syntax
- adodbapi
- pyodbc
- pypyodbc
- MySQL
- PostgreSQL
- Object Relational Mappers
- Wrapping Up
-
-
Chapter 16 - The super built-in
-
- Python 2 vs Python 3
- Method Resolution Order (MRO)
- Wrapping Up
-
-
Chapter 17 - Descriptors
-
- The Descriptor Protocol
- Calling a Descriptor
- Descriptor Examples
- Wrapping Up
-
-
Chapter 18 - Scope
-
- Local Scope
- Global Scope
- nonlocal Scope
- Wrapping Up
-
- Part III - Working with the Web
-
Chapter 19 - Web Scraping
-
- Tips for Scraping
- Preparing to Scrape
- BeautifulSoup
- Scrapy
- Wrapping Up
-
-
Chapter 20 - Web APIs
-
- Wikipedia
- Other API Libraries
- Wrapping Up
-
-
Chapter 21 - Working with FTP
-
- Connecting to an FTP Server
- Navigating Directories with ftplib
- Downloading a File via FTP
- Uploading Files to an FTP Server
- Wrapping Up
-
-
Chapter 22 - The urllib Module
-
- urllib.request
- urllib.parse
- urllib.robotparser
- Wrapping Up
-
- Part IV - Testing
-
Chapter 24 - The doctest Module
-
- How it Works
- Check Your Test With a Text File
- Option Flags and Directives
- Wrapping Up
-
-
Chapter 24 - The unittest Module
-
- A Simple Example
- Command-Line Interface
- Creating a More Complex Test
- Creating Test Suites
- How to Skip Tests
- Integrating with doctest
- Wrapping Up
-
-
Chapter 25 - The mock Module
-
- Simple Examples
- Side Effects
- Autospeccing
- The Patch
- Wrapping Up
-
-
Chapter 26 - An Intro to coverage.py
-
- Additional Information
- Wrapping Up
-
- Part V - Concurrency
-
Chapter 27 - The asyncio Module
-
- Definitions
- async and await
- A Bad Coroutine Example
- A Better Coroutine Example
- Scheduling Calls
- Tasks
- Wrapping Up
-
-
Chapter 28 - The threading Module
-
- Intro to threads
- Locks and Synchronization
- Timers
- Other Thread Components
- Thread Communication
- Wrapping Up
-
-
Chapter 29 - The multiprocessing Module
-
- Getting Started With Multiprocessing
- Locks
- Logging
- The Pool Class
- Process Communication
- Wrapping Up
-
-
Chapter 30 - The concurrent.futures Module
-
- Creating a Pool
- Deadlocks
- Wrapping Up
-
Authors have earned$9,908,691writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
The Leanpub 45-day 100% Happiness Guarantee
Within 45 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
- #1
C++ Best Practices
Jason TurnerLevel up your C++, get the tools working for you, eliminate common problems, and move on to more exciting things!
- #2
Continuous Delivery Pipelines
Dave FarleyThis practical handbook provides a step-by-step guide for you to get the best continuous delivery pipeline for your software.
- #3
OpenIntro Statistics
David Diez, Christopher Barr, Mine Cetinkaya-Rundel, and OpenIntroA complete foundation for Statistics, also serving as a foundation for Data Science.
Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects.
More resources: openintro.org.
- #4
C++20
Rainer GrimmC++20 is the next big C++ standard after C++11. As C++11 did it, C++20 changes the way we program modern C++. This change is, in particular, due to the big four of C++20: ranges, coroutines, concepts, and modules.
The book is almost daily updated. These incremental updates ease my interaction with the proofreaders.
- #5
Atomic Kotlin
Bruce Eckel and Svetlana IsakovaFor both beginning and experienced programmers! From the author of the multi-award-winning Thinking in C++ and Thinking in Java together with a member of the Kotlin language team comes a book that breaks the concepts into small, easy-to-digest "atoms," along with exercises supported by hints and solutions directly inside IntelliJ IDEA!
- #6
Introductory Statistics with Randomization and Simulation
Mine Cetinkaya-Rundel, Christopher Barr, OpenIntro, and David DiezA complete foundation for Statistics, also serving as a foundation for Data Science, that introduces inference using randomization and simulation while covering traditional methods.
Leanpub revenue supports OpenIntro, so we can provide free desk copies to teachers interested in using our books in the classroom.
More resources: openintro.org.
- #7
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
- #8
Java OOP Done Right
Alan MellorObject Oriented Programming is still a great way to create clean, maintainable code. But only if you use it right.
This book gives you 25 years of OO best practice, ready to use.
You'll learn to design objects behaviour-first, use TDD to help, then confidently apply Design Patterns, SOLID principles and Refactoring to make clean, crafted code.
- #9
Introducing EventStorming
Alberto BrandoliniThe deepest tutorial and explanation about EventStorming, straight from the inventor.
- #10
Discrete Mathematics for Computer Science
Alexander Shen, Alexander S. Kulikov, Vladimir Podolskii, and Aleksandr GolovnevThis book supplements the DM for CS Specialization at Coursera and contains many interactive puzzles, autograded quizzes, and code snippets. They are intended to help you to discover important ideas in discrete mathematics on your own. By purchasing the book, you will get all updates of the book free of charge when they are released.
Top Bundles
- #1
Software Architecture for Developers: Volumes 1 & 2 - Technical leadership and communication
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #2
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #3
Cisco CCNA 200-301 Complet
4 Books
Ce lot comprend les quatre volumes du guide préparation à l'examen de certification Cisco CCNA 200-301. - #4
Modern C++ by Nicolai Josuttis
2 Books
- #5
CCDE Practical Studies (All labs)
3 Books
CCDE lab - #6
"The C++ Standard Library" and "Concurrency with Modern C++"
2 Books
Get my books "The C++ Standard Library" and "Concurrency with Modern C++" in a bundle. The first book gives you the details you should know about the C++ standard library; the second one dives deeper into concurrency with modern C++. In sum, you get more than 600 pages full of modern C++ and about 250 source files presenting the standard library... - #7
Mastering Containers
2 Books
Docker and Kubernetes are taking the world by storm! These books will get you up-to-speed fast! Docker Deep Dive is over 400 pages long, and covers all objectives on the Docker Certified Associate exam.The Kubernetes Book includes everything you need to get up and running with Kubernetes! - #8
Modern Management Made Easy
3 Books
Read all three Modern Management Made Easy books. Learn to manage yourself, lead and serve others, and lead the organization. - #9
The Future of Digital Health
6 Books
We put together the most popular books from The Medical Futurist to provide a clear picture about the major trends shaping the future of medicine and healthcare. Digital health technologies, artificial intelligence, the future of 20 medical specialties, big pharma, data privacy and how technology giants such as Amazon or Google want to conquer... - #10
Django for Beginners/APIs/Professionals
3 Books
