Python One-Liners: Write Concise, Eloquent Python Like a Professional

Title Page
Copyright Page
Dedication
About the Author
About the Technical Reviewer
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
1 Python Refresher
	Basic Data Structures
	Container Data Structures
	Control Flow
	Functions
	Lambdas
	Summary
2 Python Tricks
	Using List Comprehension to Find Top Earners
	Using List Comprehension to Find Words with High Information Value
	Reading a File
	Using Lambda and Map Functions
	Using Slicing to Extract Matching Substring Environments
	Combining List Comprehension and Slicing
	Using Slice Assignment to Correct Corrupted Lists
	Analyzing Cardiac Health Data with List Concatenation
	Using Generator Expressions to Find Companies That Pay Below Minimum Wage
	Formatting Databases with the zip() Function
	Summary
3 Data Science
	Basic Two-Dimensional Array Arithmetic
	Working with NumPy Arrays: Slicing, Broadcasting, and Array Types
	Conditional Array Search, Filtering, and Broadcasting to Detect Outliers
	Boolean Indexing to Filter Two-Dimensional Arrays
	Broadcasting, Slice Assignment, and Reshaping to Clean Every i-th Array Element
	When to Use the sort() Function and When to Use the argsort() Function in NumPy
	How to Use Lambda Functions and Boolean Indexing to Filter Arrays
	How to Create Advanced Array Filters with Statistics, Math, and Logic
	Simple Association Analysis: People Who Bought X Also Bought Y
	Intermediate Association Analysis to Find Bestseller Bundles
	Summary
4 Machine Learning
	The Basics of Supervised Machine Learning
	Linear Regression
	Logistic Regression in One Line
	K-Means Clustering in One Line
	K-Nearest Neighbors in One Line
	Neural Network Analysis in One Line
	Decision-Tree Learning in One Line
	Get Row with Minimal Variance in One Line
	Basic Statistics in One Line
	Classification with Support-Vector Machines in One Line
	Classification with Random Forests in One Line
	Summary
5 Regular Expressions
	Finding Basic Textual Patterns in Strings
	Writing Your First Web Scraper with Regular Expressions
	Analyzing Hyperlinks of HTML Documents
	Extracting Dollars from a String
	Finding Nonsecure HTTP URLs
	Validating the Time Format of User Input, Part 1
	Validating Time Format of User Input, Part 2
	Duplicate Detection in Strings
	Detecting Word Repetitions
	Modifying Regex Patterns in a Multiline String
	Summary
6 Algorithms
	Finding Anagrams with Lambda Functions and Sorting
	Finding Palindromes with Lambda Functions and Negative Slicing
	Counting Permutations with Recursive Factorial Functions
	Finding the Levenshtein Distance
	Calculating the Powerset by Using Functional Programming
	Caesar’s Cipher Encryption Using Advanced Indexing and List Comprehension
	Finding Prime Numbers with the Sieve of Eratosthenes
	Calculating the Fibonacci Series with the reduce() Function
	A Recursive Binary Search Algorithm
	A Recursive Quicksort Algorithm
	Summary
Afterword
Index