Python – Basic Operators

Operators are those which performs operation on operand.We will know about Baisc Python operators​ in this post.

 

What is Python ?

• Python is an Interpreter
• Python is Interactive
• Python is Object-Oriented programming language
• Python focusses on simplicity and generality.
• Reduces cost of program maintenance

 

Why Python ?

• Easy-to-learn, read and maintain
• Aids in rapid development of complex projects
• Portable, Extendable and scalable
• Supports broad range of standard modules for Networking,
• Database Handling and  GUI Programming
• It is Free language but very stable and mature.

Use of Python

• Python is extensively used in Google, the New York Stock Exchange, Industrial Light and Magic
• It can be used for :-
  • Web and Internet Development
  • Database Access
  • Desktop GUIs
  • Scientific and Numeric
  • Education
  • Network Programming
  • Software Development
  • Game and 3D Graphics

Python Operators – Types​

In this post we will learn about use of below operators in Python.

• Arithmetic Operators
• Comparison Operators
• Assignment Operators
• Bitwise
• Logical Operators
• Membership Operators
• Identity Operators

Arithmetic Operators

• Arithmetic Operators​

Operator​	Description​	Example​
+​	Addition​	int i = 8 + 9; byte b = (byte) 5+4;​
–​	Subtraction​	int i = 9 – 4;​
* ​	Multiplication​	int i = 8 * 6;​
/​	Division​	int i = 10 / 2;​
%​	Remainder​	int i = 10 % 3;​

 

• ** -> Exponential
• // -> Floor division

Operators – Relational Operators/Conditional Operators​

 

1. Equal = =
2. Not equal !=
3. Less than <
4. Greater than >
5. Less than equal to <=
6. Greater than equal to >=
7. comparison cmp

• Relational Operators

Operator​	Description​	Example​
>​	Greater than​	if ( x > 4)​
<​	Less than​	if ( x < 4)​
>=​	Greater than or equal to​	if ( x >= 4)​
<=​	Less than or equal to​	if ( x <= 4)​

 

• Conditional Operators ​(java || and Java &&)

Operator​	Description​	Example​
&&​	Conditional and​	If (a == 4 && b == 5)​
||​	Conditional or​	If (a == 4 || b == 5)​

Assignment operators

 

1. =
2. +=
3. -=
4. *=
5. /=
6. %=
7. **= -> a **= b e a = a ** b
8. //= -> a //= b e a = a // b
9. Multiple assignments in a line

a  =  b  =  c  =  100;

Note the addresses of a, b and c.

del  a. Observe the addresses and values of a, b  and c.

Change the value of c. Note the addresses and values of a, b  and c.

Operator	Description	Example
=	Assigns values from right side operands to left side operand	c = a + b assigns value of a + b into c
+= Add AND	It adds right operand to the left operand and assign the result to left operand	c += a is equivalent to c = c + a
-= Subtract AND	It subtracts right operand from the left operand and assign the result to left operand	c -= a is equivalent to c = c – a
*= Multiply AND	It multiplies right operand with the left operand and assign the result to left operand	c *= a is equivalent to c = c * a
/= Divide AND	It divides left operand with the right operand and assign the result to left operand	c /= a is equivalent to c = c / ac /= a is equivalent to c = c / a
%= Modulus AND	It takes modulus using two operands and assign the result to left operand	c %= a is equivalent to c = c % a
**= Exponent AND	Performs exponential (power) calculation on operators and assign value to the left operand	c **= a is equivalent to c = c ** a
//= Floor Division	It performs floor division on operators and assign value to the left operand	c //= a is equivalent to c = c // a

 

Bitwise Operators

 

1. & ->   bitwise And
2. | ->   bitwise OR
3. ^ ->   bitwise XOR
4. ~ ->   binary one’s complement
5. << -> binary Left Shift Operator
6. >> -> binary Right Shift Operator

Operator​	Description​	Example​
&​	Bitwise and​	001 & 111 =  1 ​
|​	Bitwise or​	001 | 110 = 111​
^​	Bitwise ex-or​	001 ^ 110 = 111​
~​	Reverse​	~011 = -10​

 

Logical Operators

 

1. and
2. or
3. not

Operator​	Description​	Example​
&​	Bitwise and​	001 & 111 =  1 ​
|​	Bitwise or​	001 | 110 = 111​
^​	Bitwise ex-or​	001 ^ 110 = 111​
~​	Reverse​	~011 = -10​

Membership / Identity operators

 

• Membership Operators :-

– in  -> x in y  returns True if x is a member of sequence y.

–not  in -> x not in y  returns True if x is NOT a member of sequence y.

• Identity Operators :-

–is  -> x is y, here is results in 1 if id(x) equals id(y).

–is not -> x is not y, here is not results in 1 if id(x) is not equal to id(y).

 

Python Operator Precedence

Operator	Description
**	Exponentiation (raise to the power)
~ + –	Complement, unary plus and minus (method names for the last two are +@ and -@)
* / % //	Multiply, divide, modulo and floor division
+ –	Addition and subtraction
>> <<	Right and left bitwise shift
&	Bitwise ‘AND’
^ |	Bitwise exclusive `OR’ and regular `OR’
<= < > >=	Comparison operators
<> == !=	Equality operators
= %= /= //= -= += *= **=	Assignment operators
Is  ,  is not	Identity operators
in  ,  not in	Membership operators
not  , or , and	Logical operators

What is IronPython ? History of IronPython

Continue reading at https://www.trenovision.com/what-is-ironpython-history-of-ironpython/