This document provides an introduction to the Python programming language. It covers the history of Python, how it was created in the 1990s in the Netherlands. It then explains some basic Python concepts like variables, data types, operators, conditional statements, loops, functions, and object-oriented programming. Finally, it lists some common applications of Python like database programming, GUI programming, games, web development, and scientific applications.

1. CONTENTS
• Introduction to python
• History of python
• Basics of programming python
• Object oriented programming (oop)
• Applications

2. INTRODUCTION TO PYTHON
• Python is a general purpose programming language that is often to applied in
scripting roles.
• So, python is programming language as well as scripting language.
• Python is also called interpreted language.

3. HISTORY OF PYTHON
• Invented in Netherlands, early 90’s by Guido van Rossum
• Python was conceived in the alte 1980’s and its implementation was started in
December 1989

4. HOW TO PRINT OUTPUT
• It is very easy to print output.
• Print(“HELLO WORLD”)
• Here print is predefined function in python for printing the output.

5. BASICS OF PYTHON PROGRAMMING
• Keywords in python
• Python variables
• Data types
• Python operators
• Conditional and Looping statements
• Python functions

6. KEYWORDS IN PYTHON
• Keywords are predefined, reserved words used in Python programming that have
special meanings to the compiler.
• We cannot use a keyword as a variable name, function name, or any other
identifier. They are used to define the syntax and structure of the Python
language.
• Ex: True, False, else, def, if, import, for, pass, return.

7. PYTHON VARIABLES
• In programming, a variable is a container (storage area) to hold data. For
example
• number=10
• Here, number is the variable storing the value 10

8. DATA TYPES
• In computer programming, data types specify the type of data that can be stored
inside a variable.
• num=6.
• Here 6 is an integer is assigned to num variable. So that num is the integer data
type.

9. PYTHON DATA TYPES
NAME TYPE DESCRIPTION
Integer int To store sny integer value such as: 3,400,34
Floating point float Numbers with decimal values:3.45,12.7
Strings Str Collection of characters:” Bhaskar”
Lists List A=[10,”rohit”,20.9]
Dictionaries Dict B={1:”dhoni”,2:2003,3:6}
Sets Sets C={1,2,3,”virat”}
Tuples Tuple D=(“Bhaskar”,6,9,2003)
Boolean bool Logical value indicating True or false

10. PYTHON OPERATORS
• Here's a list of different types of Python operators that we will learn in this tutorial.
• Arithmetic operators : +, - , * , /, % etc.
• Assignment operators : =, +=, -=, *= etc.
• Logical operators : and, or, not
• Bitwise operators : &, |, ^, >>, <<
• Conditional operators : ==, < , >, >=, <=, !=

11. CONDITIONAL STATEMENTS
• In conditional statements if the condition is true , then next step instruction
executed. Otherwise it not execute.
• Conditional statements: if, elif, else, switch
• Syntax:
• if(condition):
• statement_1
• else:
• statement_2

12. LOOP STATEMENTS
• Generally looping statements are used for repeatition.
• Loop statements: for, while, do while.
• Syntax:
• for( range):
• statement_1
• statement_2

13. PYTHON FUNCTIONS
• A function is a block of code that performs a specific task.
There are two types of function in Python programming:
•Standard library functions - These are built-in functions in Python that
are available to use.
•User-defined functions - We can create our own functions based on
our requirements.

14. PYTHON FUNCTIONS
• Syntax:
• def greet():
• print(“hello world”)
• Here def is the keyword to create a user defined function and greet is the
function name. That is our choice to give any name to the function.

15. OBJECT ORIENTED PROGRAMMING
• Python is a versatile programming language that supports various programming
styles, including object-oriented programming (OOP) through the use
of objects and classes.
• An object is any entity that has attributes and behaviors
• A class is a blueprint for that object.

16. OBJECT ORIENTED PROGRAMMING
• INHERITANCE : Inheritance is a way of creating a new class for using details of an existing class
without modifying it. The newly formed class is a derived class (or child class). Similarly, the existing
class is a base class (or parent class).
• ENCAPSULATION : Encapsulation is one of the key features of object-oriented programming.
Encapsulation refers to the bundling of attributes and methods inside a single class.It prevents
outer classes from accessing and changing attributes and methods of a class. This also helps to
achieve data hiding.
• POLYMORPHISM: Polymorphism is another important concept of object-oriented programming. It
simply means more than one form.
•

17. APPLICATIONS
• Database programming
• GUI programming
• Games and 3d garphics
• Web development
• Scientific applications

18. THANK YOU