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
-
The Leanpub 60-day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
80% Royalties. Earn $16 on a $20 book.
We pay 80% royalties. That's not a typo: you earn $16 on a $20 sale. If we sell 5000 non-refunded copies of your book or course for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earned$12,307,240writing, publishing and selling on Leanpub.
Learn more about writing on Leanpub
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) and EPUB (for phones, tablets and 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
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.
- #2
Personal Finance
Jason AndersonThis textbook provides an in-depth analysis on personal finance that is both practical and straightforward in its approach. It has been written in such a way that the readers can gain knowledge without getting overwhelmed by the technical terms. Suitable for both beginners and advanced learners.
- #3
Getting to Know IntelliJ IDEA
Trisha Gee and Helen ScottIf we treat our IDE as a text editor, we are doing ourselves a disservice. Using a combination of tutorials and a questions-and-answers approach, Getting to Know IntelliJ IDEA will help you find ways to use IntelliJ IDEA that enable you to work comfortably and productively as a professional developer.
- #4
C++20 - The Complete Guide
Nicolai M. JosuttisAll new language and library features of C++20 (for those who know previous C++ versions).
The book presents all new language and library features of C++20. Learn how this impacts day-to-day programming, to benefit in practice, to combine new features, and to avoid all new traps.
Buy early, pay less, free updates.
Other books:
- #5
Mastering STM32 - Second Edition
Carmine NovielloWith more than 1200 microcontrollers, STM32 is probably the most complete ARM Cortex-M platform on the market. This book aims to be the most complete guide around introducing the reader to this exciting MCU portfolio from ST Microelectronics and its official CubeHAL and STM32CubeIDE development environment.
- #6
R Programming for Data Science
Roger D. PengThis book brings the fundamentals of R programming to you, using the same material developed as part of the industry-leading Johns Hopkins Data Science Specialization. The skills taught in this book will lay the foundation for you to begin your journey learning data science. Printed copies of this book are available through Lulu.
- #7
Machine Learning Q and AI
Sebastian Raschka, PhDHave you recently completed a machine learning or deep learning course and wondered what to learn next? With 30 questions and answers on key concepts in machine learning and AI, this book provides bite-sized bits of knowledge for your journey to becoming a machine learning expert.
- #8
Stats One
William Foote - #9
The Rails 7 Way
Obie Fernandez, Lucas Dohmen, and Tom Henrik AadlandThe Rails™ 7 Way is the comprehensive, authoritative reference guide for professionals delivering production-quality code using modern Ruby on Rails. It illuminates the entire Rails 7 API, its most powerful idioms, design approaches, and libraries. Building on the previous editions, this edition has been heavily refactored and updated.
- #10
Gradual Modularization for Ruby and Rails
Stephan HagemannGet yourself a new tool to manage your Rails application and your growing engineering organization! Prevent the ball-of-mud (and fix it!). Go for microservices or SOA if it makes sense not just because you don't have any other tool. Do all this through a low-overhead tool: packages. Enable better conversations to make practical changes today.
Top Bundles
- #1
Software Architecture
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
1500 QUIZ COMMENTATI (3 libri)
3 Books
Tre libri dei QUIZ MMG Commentati al prezzo di DUE! I QUIZ dei concorsi ufficiali di Medicina Generale relativi agli anni: 2000-2001-2003-2012-2013-2014-2015-2016-2017-2018-2019-2020-2021 +100 inediti Raccolti in unico bundle per aiutarvi nello studio e nella preparazione al concorso. All'interno di ogni libro i quiz sono stati suddivisi per... - #4
Pattern-Oriented Memory Forensics and Malware Detection
2 Books
This training bundle for security engineers and researchers, malware and memory forensics analysts includes two accelerated training courses for Windows memory dump analysis using WinDbg. It is also useful for technical support and escalation engineers who analyze memory dumps from complex software environments and need to check for possible... - #5
Practical FP in Scala + Functional event-driven architecture
2 Books
Practical FP in Scala (A hands-on approach) & Functional event-driven architecture, aka FEDA, (Powered by Scala 3), together as a bundle! The content of PFP in Scala is a requirement to understand FEDA so why not take advantage of this bundle!? - #6
Modern C++ Collection
3 Books
Get All about Modern C++C++ Standard Library, including C++20Concurrency with Modern C++, including C++20C++20Each book has about 200 complete code examples. Updates are included. When I update one of the books, you immediately get the updated bundle. You can expect significant updates to each new C++ standard (C++23, C++26, .. ) and also... - #7
Linux Administration Complet
4 Books
Ce lot comprend les quatre volumes du Guide Linux Administration :Linux Administration, Volume 1, Administration fondamentale : Guide pratique de préparation aux examens de certification LPIC 1, Linux Essentials, RHCSA et LFCS. Administration fondamentale. Introduction à Linux. Le Shell. Traitement du texte. Arborescence de fichiers. Sécurité... - #9
Development and Deployment of Multiplayer Online Games, Part ARCH. Architecture (Vol. I-III)
3 Books
What's the Big Idea? The idea behind this book is to summarize the body of knowledge that already exists on multiplayer games but is not available in one single place.And quite a fewof the issues discussed within this series (planned as three nine volumes ~300 pages each), while known in the industry, have not been published at all (except for... - #10
Growing Agile: The Complete Coach's Guide
7 Books
Growing Agile: Coach's Guide Series This bundle provides a collection of training and workshop plans for a variety of agile topics. The series is aimed at agile coaches, trainers and ScrumMasters who often find themselves needing to help teams understand agile concepts. Each book in the series provides the plans, slides, handouts and activity...
