Python One-Liners

Brief Contents
Contents in Detail
Acknowledgments
Introduction
	Python One-Liner Example
	A Note on Readability
	Who Is This Book For?
	What Will You Learn?
	Online Resources
Chapter 1: Python Refresher
	Basic Data Structures
		Numerical Data Types and Structures
		Booleans
		Strings
		The Keyword None
	Container Data Structures
		Lists
		Stacks
		Sets
		Dictionaries
		Membership
		List and Set Comprehension
	Control Flow
		if, else, and elif
		Loops
	Functions
	Lambdas
	Summary
Chapter 2: Python Tricks
	Using List Comprehension to Find Top Earners
		The Basics
		The Code
		How It Works
	Using List Comprehension to Find Words with High Information Value
		The Basics
		The Code
		How It Works
	Reading a File
		The Basics
		The Code
		How It Works
	Using Lambda and Map Functions
		The Basics
		The Code
		How It Works
	Using Slicing to Extract Matching Substring Environments
		The Basics
		The Code
		How It Works
	Combining List Comprehension and Slicing
		The Basics
		The Code
		How It Works
	Using Slice Assignment to Correct Corrupted Lists
		The Basics
		The Code
		How It Works
	Analyzing Cardiac Health Data with List Concatenation
		The Basics
		The Code
		How It Works
	Using Generator Expressions to Find Companies That Pay Below Minimum Wage
		The Basics
		The Code
		How It Works
	Formatting Databases with the zip() Function
		The Basics
		The Code
		How It Works
	Summary
Chapter 3: Data Science
	Basic Two-Dimensional Array Arithmetic
		The Basics
		The Code
		How It Works
	Working with NumPy Arrays: Slicing, Broadcasting, and Array Types
		The Basics
		The Code
		How It Works
	Conditional Array Search, Filtering, and Broadcasting to Detect Outliers
		The Basics
		The Code
		How It Works
	Boolean Indexing to Filter Two-Dimensional Arrays
		The Basics
		The Code
		How It Works
	Broadcasting, Slice Assignment, and Reshaping to Clean Every i-th Array Element
		The Basics
		The Code
		How It Works
	When to Use the sort() Function and When to Use the argsort() Function in NumPy
		The Basics
		The Code
		How It Works
	How to Use Lambda Functions and Boolean Indexing to Filter Arrays
		The Basics
		The Code
		How It Works
	How to Create Advanced Array Filters with Statistics, Math, and Logic
		The Basics
		The Code
		How It Works
	Simple Association Analysis: People Who Bought X Also Bought Y
		The Basics
		The Code
		How It Works
	Intermediate Association Analysis to Find Bestseller Bundles
		The Basics
		The Code
		How It Works
	Summary
Chapter 4: Machine Learning
	The Basics of Supervised Machine Learning
		Training Phase
		Inference Phase
	Linear Regression
		The Basics
		The Code
		How It Works
	Logistic Regression in One Line
		The Basics
		The Code
		How It Works
	K-Means Clustering in One Line
		The Basics
		The Code
		How It Works
	K-Nearest Neighbors in One Line
		The Basics
		The Code
		How It Works
	Neural Network Analysis in One Line
		The Basics
		The Code
		How It Works
	Decision-Tree Learning in One Line
		The Basics
		The Code
		How It Works
	Get Row with Minimal Variance in One Line
		The Basics
		The Code
		How It Works
	Basic Statistics in One Line
		The Basics
		The Code
		How It Works
	Classification with Support-Vector Machines in One Line
		The Basics
		The Code
		How It Works
	Classification with Random Forests in One Line
		The Basics
		The Code
		How It Works
	Summary
Chapter 5: Regular Expressions
	Finding Basic Textual Patterns in Strings
		The Basics
		The Code
		How It Works
	Writing Your First Web Scraper with Regular Expressions
		The Basics
		The Code
		How It Works
	Analyzing Hyperlinks of HTML Documents
		The Basics
		The Code
		How It Works
	Extracting Dollars from a String
		The Basics
		The Code
		How It Works
	Finding Nonsecure HTTP URLs
		The Basics
		The Code
		How It Works
	Validating the Time Format of User Input, Part 1
		The Basics
		The Code
		How It Works
	Validating Time Format of User Input, Part 2
		The Basics
		The Code
		How It Works
	Duplicate Detection in Strings
		The Basics
		The Code
		How It Works
	Detecting Word Repetitions
		The Basics
		The Code
		How It Works
	Modifying Regex Patterns in a Multiline String
		The Basics
		The Code
		How It Works
	Summary
Chapter 6: Algorithms
	Finding Anagrams with Lambda Functions and Sorting
		The Basics
		The Code
		How It Works
	Finding Palindromes with Lambda Functions and Negative Slicing
		The Basics
		The Code
		How It Works
	Counting Permutations with Recursive Factorial Functions
		The Basics
		The Code
		How It Works
	Finding the Levenshtein Distance
		The Basics
		The Code
		How It Works
	Calculating the Powerset by Using Functional Programming
		The Basics
		The Code
		How It Works
	Caesar’s Cipher Encryption Using Advanced Indexing and List Comprehension
		The Basics
		The Code
		How It Works
	Finding Prime Numbers with the Sieve of Eratosthenes
		The Basics
		The Code
		How It Works
	Calculating the Fibonacci Series with the reduce() Function
		The Basics
		The Code
		How It Works
	A Recursive Binary Search Algorithm
		The Basics
		The Code
		How It Works
	A Recursive Quicksort Algorithm
		The Basics
		The Code
		How It Works
	Summary
Afterword
Index