 Operators are special symbols that are used to perform operations on the variables and the values.
 Consider an expression 10 + 20 = 30. Here, + is an operator that performs addition. 10 and 20 are called operands and 30 is the output of the operation.
 In general, the operand is a variable or a value that the operator operates on.
 The most commonly used operator groups in python language are listed below
 Arithmetic Operators
 Comparison/Relational Operators
 Logical Operators
 Assignment Operators
 Bitwise Operators
 Identity Operators
 Membership Operators
 Let's have a look at each operator with their syntax.
Arithmetic Operators:
 Arithmetic operators are used with numeric values to perform mathematical operations like addition, subtraction, multiplication, division, etc.,
Operator

Name

Description

Syntax
Example

+

Addition

Add
two operands

a
+ b



Subtraction

Subtract right operand from the left operand

a  b

*

Multiplication

Multiply
two operands

a
* b

/

Division

Divide left operand by right operand (result – float)

a / b

%

Modulus

Returns the remainder of the division of the left operand by the right operand

a
% b

//

Floor Division

Returns Quotient of the division of left operand by right operand (result
– the whole number)

a // b

**

Exponentiation

Exponent
– Left operand raised to the power of right operand

a
** b

 Example: Arithmetic operators in Python
Output 
 Comparison operators are used to comparing two values and return either True or False based on the condition.
Operator

Name

Description

Syntax
Example

==

Equal

Returns True – If both operands are equal

a
== b

!=

Not Equal

Returns True – If both operands are not equal

a != b

>

Greater
than

Returns True – If the left operand is greater than
right operand

a
> b

<

Less than

Returns True – If the left operand is less than the right operand

a < b

>=

Greater
than or equal to

Returns
True – If the left operand is greater than or equal to the right operand

a
>= b

<=

Less than or equal to

Returns True – If the left operand is lesser than or equal to the right
operand

a <= b

 Example: Comparison operators in Python
 Logical operators are used to combine conditional statements or variables or values using Logical AND, Logical OR, and Logical Not.
Operator

Name

Description

Syntax
Example

and

Logical
AND

Returns True – If both operands are true

a
and b

or

Logical OR

Returns True – If either of the operands is true

a or b

not

Logical
NOT

Returns True – If the operand is false

not
a

 Example: Logical operators in Python
 Assignment operators are used to assign values to variables.
Operator

Name

Description

Syntax
Example

=

Assign

Assign the value of right operand to left operand

c
= a + b

+=

Add and Assign

Add right operand with left operand and then assign
to left operand

a+=b > a = a+b

=

Subtract and Assign

Subtract right operand from left operand and then
assign to left operand

a=b > a = ab

*=

Multiply and Assign

Multiply right operand with left operand and then
assign to left operand

a*=b > a = a*b

/=

Divide and Assign

Divide left operand with right operand and then
assign to left operand

a/=b > a = a/b

%=

Modulus and Assign

Takes remainder using left and right operand and
then assign to left operand

a%=b > a = a%b

//=

Floor Division and Assign

Divide left operand with right operand and then
assign floor value to left operand

a//=b > a = a//b

**=

Exponent and Assign

Finds exponent value using operands and then assign
value to left operand

a**=b > a = a**b

&=

Bitwise AND and Assign

Perform Bitwise AND on operands and then assign
value to left operand

a&=b > a = a&b

=

Bitwise OR and Assign

Perform Bitwise OR on operands and then assign value
to left operand

a=b > a = ab

^=

Bitwise XOR and Assign

Perform Bitwise XOR on operands and then assign value
to left operand

a^=b > a = a^b

>>=

Bitwise right shift and Assign

Perform Bitwise right shift on operands and then
assign value to left operand

a>>=b > a = a>>b

<<=

Bitwise left shift and Assign

Perform Bitwise left shift on operands and then
assign value to left operand

a<<=b > a = a<<b

Bitwise Operators:
Identity Operators:
Membership Operators:
 Bitwise operators work on bits and perform bit by bit operation.
 For example, 4 is 100 in binary, and 7 is 111.
Operator

Name

Description

Syntax
Example

&

Bitwise AND

The operator sets bit result to 1 if both operand bits
are 1

x
& y



Bitwise OR

The operator sets bit result to 1 if one of the two
operand bits is 1

x  y

~

Bitwise NOT

Inverts all the bits

~
x

^

Bitwise XOR

The operator sets bit result to 1 if only one of the two
operand bits is 1, not both

x ^ y

>>

Bitwise right shift

Left operand value is moved right by the number of
bits specified by the right operand

x
>>

<<

Bitwise left shift

Left operand value is moved left by the number of
bits specified by the right operand

x <<

 Example: Bitwise operators in Python
Bitwise operator Python 
Output 
 Identity operators are used to compare the memory location of the objects.
 If two variables are equal in value, it doesn't imply that they are identical.
Operator

Description

Syntax
Example

is

Returns True – If both variables
refer to the same object

x
is y

is not

Returns True – If both variables do not refer to the
same object

x is not y

 Example: Identity operators in Python
Identity Operator Python 
Output 
 Membership operators are used to test whether a value or a variable is found in a collection sequence ( list, string, tuple, set, and dictionary).
 In a dictionary, we can check only the presence of the key, not the value.
Operator

Description

Syntax
Example

In

Returns True – If value/variable
is found in the specified sequence.

x
in y

not in

Returns True – If value/variable is not found in the specified sequence.

x not in y

No comments:
Post a Comment