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

The if and if...else statement


If can be understood as metaphorical English what if which most people use in their day to day life. What if this doesn't happen? If I were to become a billionaire. If this match is drawn we are out of the champions' league. If Churchill had not come to power Battle of Britain would have been lost. If this car doesn't start, use the other one. We are loaded with numerous examples from across the globe on usage of if. Same is the case with programming languages. Majority of the programming languages have control statements and you will find majority of them use the keyword if in their control statements. Python is no different and also facilitates the usage of if.  Let's understand with an example:

password= raw_input("Enter the passwordt")
if password=="MI6": 
     print "Welcome Mr. Bond."

Note

For entering inputs through command line raw_input() function is used in Python.Any function or control statement block in Python is started by placing the colon at the...