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 import statement


In order to use the functions and variables of the module1.py program, we will use the import statement. The syntax of the import statement is shown here:

Import module1, module2, module 

In this way, you can import multiple modules. Let's make another program mod1.py, which will import module1.py:

 import module1
 x = 12
 y = 34
 print "Sum is ", module1.sum1(x,y)
 print "Multiple is ", module1.mul1(x,y)

As you know, the module contains statements and definitions and these statements and definitions are executed for the first time when the interpreter encounters the module name in the import statement.   

In preceding code, the module1 module gets executed when the interpreter encounters the module1 name in the import statement.  In order to use the module variables and functions, use the module_name.variable and module_name.function() notations. In the preceding code, we want to use the sum1() function of module1, that's why we use module1.mul1().

Let's see the output:

Output...