Introduction to Python Programming

What is python?

Python is an object oriented programming language. It is easy to understand and a high level language. Python was developed by  “Guido Van Rossum” .  

Statements in Python language: like the other languages python also included if statement, while loop, for loop, do while loop, continue statement , pass statement , break statement etc.

Use of python : python is used for web development, software development, system scripting.

Creation of a variable in python: to create a variable  python doesn’t have any command.

EXAMPLE for creating a variable :

x = 5

y = "VISHANK"

print(x)

print(y)

Simple example of python program :

x = 4 # x is of type int

x = "Sally" # x is now of type str

print(x)

Operators in python : Python has some operators like the other languages. And these are as follows-

1.)    Arithmetic operators :  these  are the operators by which we can do the arithmetic operations. These operators are –

a.)    addition (+)

Example : a+b;

b.)    Subtraction :  (-)

Example : a-b;

c.)     Multiplication:  (*)

Example: a*b;

d.)    Division  (/)

Example : a/b;

e.)    Modulus : (%)

Example : a%b;

f.)     Exponentiation (**)

Example : a**b;

g.)    Floor division (//)

Example : a//b;

2.)    Assignment operator:  with the use of these operators we can assign the values.

a.)    = 

Example: x=a;

b.)    +=

Example : x=x+a;

c.)     -=  

Example : x=x-a;

d.)    *=

Example : x=x*a;

e.)    /=

Example : x=x/a;

f.)     %=

x=x%a;

g.)    //=

Example : x=x//a;

h.)    **=

Example : x=x**a;

i.)      &=

Example : x=x&a;

j.)       |=

Example : x=x|a;

k.)    ^=

Example : x=x^a;

l.)      >>=

Example : x=x>>a;

       j.)     <<=

               Example : x=x<<a;

3.)    Comparison  operator : with the help of these operator we can compare the values.

a.)     Equal (==)  example: a==b;

b.)    Not equal (!=)  example: a!=b;

c.)     Greater then (>)  example: a>b;

d.)    Less then (<)  example: a<b;

e.)    Greater then or equals to (>=)  example : a>=b;

f.)     Less then or equals to (<=)  example : a<=b;

4.)    Logical operators : are the operators which help to combine the conditional statement.

a.)    And :  it returns true if both conditions are true.

Example:  x>a and x<b;

b.)    OR : it returns true if one of the statement is true.

Example : x>a or x<b;

c.)     Not : it reverse the result.

Example : x>a not x<b;

5.)    Identity operators:  these operators are used to compare the object. If they have the same object.

a.)    Is :  it returns true if both variables have the same object.

Example : x is y;

b.)    Is not : if both variable have the same object.

Example : x is not y;

6.)    Membership operator : are the operators tests  if a sequence presented in an object.

a.)    In : Example: a in b;

b.)    Not in : a not in b;

7.)    Bitwise operators : are used to compare binary numbers.

These are as follows

               AND,OR,XOR ,NOT,Zero fill left shift, and Signed right shift.