Python is a general purpose programming language created in the late 1980s. It supports object oriented programming through the use of classes and objects. Python can be used for many applications including web development, database programming, scientific applications, and games. Key features of Python include variables, data types, operators, conditional statements, looping statements, functions, object oriented programming concepts like inheritance, encapsulation, and polymorphism.

1. Python Programming Language

2. Contents
Introduction to python
History of python
Basics of programming python
Object oriented programming
Applications

3. IntroductionTo Python
• Python is a general purpose programming language that is often applied in
scripting roles.
• Python is a programming language as well as scripting language.
• Python is also called as interpreted language.

4. History of Python
• Invented in Netherlands, early 90’s by GuidoVan Rossum
• Python was conceived in the alte 1980’s and its implementation was started
in December 1989

5. 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.

6. Basics of Python Programming
• Keywords in python
• Python variables
• Data types
• Python operators
• Conditional and Looping statements
• Python functions

7. 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.

8. 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

9. Data types
• In computer programming, data types specify the type of data that can
be stored inside a variable.
• For Example
Num=6
Here 6 is an integer that is assigned to num variable. So that num is
the

10. Python DataTypes
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

11. 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 : ==, < , >, >=, <=, !=

12. 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

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

14. Python Functions
• A function is a block of code that performs a specific task.
There are two types of functions 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.

15. 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.

16. 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.

17. 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.

18. Applications
• Database programming
• GUI programming
• Games and 3D graphics
• Web development
• Scientific applications