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Python 201 - Interactively Learn Advanced Concepts in Python 3

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Introduction

About This Course

An Intro to Argument Parsing Using argparse

How To Process Command Line Arguments?Adding Arguments Options That Conflict

The Collections Module

Collections Module in Python Modules in Python: Counter Modules in Python: defaultdict Modules in Python: deque Modules in Python: namedtuple Modules in Python: OrderedDict Quiz Yourself on Collections Module

Context Managers

Context Manager and Contextlib in Python Contextlib and Its Classes ExitStack and Reentrant Context Managers Quiz Yourself on Context Managers

The Functools Module

Introduction to functools Functools: functool.partial Functools: functools.singledispatch Functools: functools.wraps Quiz Yourself on Functools Module

All About Imports

Introduction To Imports Using "from module import something"Relative Imports Optional and Local Imports Import Pitfalls Quiz Yourself on Python Imports

The importlib Module

importlib Package Dynamic Imports Module Import Checking Import From Source File Import from github.com Quiz Yourself on importlib Module

Iterators and Generators

Introduction to Iterators Creating Our Own Iterators Generators Quiz Yourself on Iterators and Generators

The Itertools Module

Iterators Iterators That Terminate compress(), dropwhile() and filterfalse()groupby(), islice() and starmap()takewhile(), tee() and zip_longest()The Combinatoric Generators Quiz Yourself on the Iterators Module

Regular Expressions

Introduction to Regular expressions The Matching Characters Pattern Matching Using Search and Escape Codes Compiling the Expressions Compilation Flags Finding Multiple Instances Backslashes Are Complicated Quiz Yourself on Regular Expressions

Mini Project

Mini Project: Password Checker

The Typing Module

Introduction to Typing Module Type Hints and Overloaded Functions

Python Built-ins

Introduction to Built-ins Functions of enumerate and eval Functions of filter and map How zip Can Be Useful?Quiz Yourself on Python Built-ins

Unicode

Introduction to Unicode Encoding / Decoding

Benchmarking

Introduction to Benchmarking Use a decorator Introduction To profilers Use a line_profiler How memory_profiler Can Be Used?Functions of profilehooks Quiz Yourself on Benchmarking

Encryption and Cryptography

Introduction to Encryption and Cryptography Key Derivation PyCrypto The Cryptography Package Quiz Yourself on Encryption and Cryptography

Databases

Introduction to Databases in Python pyodbc and pypyodbc MySQL PostgreSQL Object Relational Mappers NoSQL and MongoDB Quiz Yourself on Databases

Mini Project

Mini Project: Encryption, Decryption, and Database

The Super Built-in

Introduction to Super Built-in Python 2 vs. Python 3 Method Resolution Order (MRO)Quiz Yourself on Super Built-in

Descriptors

Descriptors in Python and its Protocol Descriptor Examples

Scope

Scope in Python Local Scope Global Scope nonlocal Scope Quiz Yourself on Scope in Python

Web Scraping

Introduction to Web Scraping Preparing to Scrape BeautifulSoup Scrapy Quiz Yourself on Web Scraping

Web APIs

Introduction to APIs Twitter Reddit Wikipedia Other API Libraries

Working with FTP

Introduction to FTP and ftplib Downloading and Uploading a File via FTP

The urllib Module

urllib module in Python

urllib.robotparser

Quiz Yourself on urllib Module

The doctest Module

Introduction to doctest Module Working of doctest Module Check Your Test With a Text File Option Flags and Directives Quiz Yourself on doctest Module

The unittest Module

unittest Module in Python A Simple Example of unittest Module Command-Line Interface Creating a More Complex Test Creating Test Suites How to Skip Tests Integrating with doctest Quiz Yourself on unittest Module

The mock Module

mock module in Python Simple Examples of mock Module Side Effects of mock Module Autospeccing and Patch Quiz Yourself on mock Module

An Intro to coverage.py

Functions of coverage.py Additional Information

The asyncio Module

Introduction to asyncio Module async and await A Bad Coroutine Example A Better Coroutine Example Scheduling Calls Functions of tasks in the asyncio Module Quiz Yourself on asyncio Module

The Threading Module

Introduction to Threading Module Locks and Synchronization Timers Other Thread Components Thread Communication Quiz Yourself on Threading Module

The Multiprocessing Module

Multiprocessing in Python Locks and Logging The Pool Class Process Communication Quiz Yourself on Multiprocessing Module

The concurrent.futures Module

concurrent.futures module Creating a Pool Deadlocks

Mini Project

Mini Project: Wikipedia and Coroutine

Wrapping Up

urllib.robotparser

Let's explore urllib.robotparser and its use.

We'll cover the following

Overview
Wrapping Up

Overview

The robotparser module is made up of a single class, RobotFileParser. This class will answer questions about whether or not a specific user agent can fetch a URL that has a published robot.txt file. The robots.txt file will tell a web scraper or robot what parts of the server should not be accessed. Let’s take a look at a simple example using ArsTechnica’s website:

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