更新时间：2021-06-24 13:07:03
coverpage
Title Page
Copyright and Credits
Learn Python by Building Data Science Applications
About Packt
Why subscribe?
Contributors
About the authors
About the reviewers
Packt is searching for authors like you
Preface
Who this book is for
What this book covers
To get the most out of this book
Download the example code files
Download the color images
Code in Action
Conventions used
Get in touch
Reviews
Section 1: Getting Started with Python
Preparing the Workspace
Technical requirements
Installing Python
Downloading materials for running the code
Installing Python packages
Working with VS Code
The VS Code interface
Beginning with Jupyter
Notebooks
The Jupyter interface
Pre-flight check
Summary
Questions
Further reading
First Steps in Coding - Variables and Data Types
Assigning variables
Naming the variable
Understanding data types
Floats and integers
Operations with self-assignment
Order of execution
Strings
Formatting
Format method
F-strings
Legacy formatting
Formatting mini-language
Strings as sequences
Booleans
Logical operators
Converting the data types
Exercise
Functions
Understanding a function
Interface functions
The input function
The eval function
Variable properties
The help function
The type function
The isinstance function
dir
Math
abs
The round function
Iterables
The len function
The sorted function
The range function
The all and any functions
The max min and sum functions
Defining the function
Default values
Var-positional and var-keyword
Docstrings
Type annotations
Refactoring the temperature conversion
Understanding anonymous (lambda) functions
Understanding recursion
Data Structures
What are data structures?
Lists
Slicing
Tuples
Immutability
Dictionaries
Sets
More data structures
frozenset
defaultdict
