Book Image

Learn Python in 7 Days

Book Image

Learn Python in 7 Days

Overview of this book

Python is a great language to get started in the world of programming and application development. This book will help you to take your skills to the next level having a good knowledge of the fundamentals of Python. We begin with the absolute foundation, covering the basic syntax, type variables and operators. We'll then move on to concepts like statements, arrays, operators, string processing and I/O handling. You’ll be able to learn how to operate tuples and understand the functions and methods of lists. We’ll help you develop a deep understanding of list and tuples and learn python dictionary. As you progress through the book, you’ll learn about function parameters and how to use control statements with the loop. You’ll further learn how to create modules and packages, storing of data as well as handling errors. We later dive into advanced level concepts such as Python collections and how to use class, methods, objects in python. By the end of this book, you will be able to take your skills to the next level having a good knowledge of the fundamentals of Python.
Table of Contents (18 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
2
Type Variables and Operators

Variables


So, what is a variable? Consider that your house needs a name. You place a nameplate at the front gate of your house. People will now recognize your house through that nameplate. That nameplate can be considered as variable. Like a nameplate points to the house, a variable points to the value that is stored in memory. When you create a variable, the interpreter will reserve some space in the memory to store values. Depending on the data type of the variable, the interpreter allocates memory and makes a decision to store a particular data type in the reserved memory. Various data types, such as integers, decimals, or characters, can be stored by assigning different data types to the variables. Python variables are usually dynamically typed, that is, the type of the variable is interpreted during runtime and you need not specifically provide a type to the variable name, unlike what other programming languages require. There are certain rules or naming conventions for naming variables...