# Logical Operators in Python with Examples

Operators are used to perform operations on values and variables. These are the special symbols that carry out arithmetic and logical computations. The value the operator operates on is known as the Operand.

In this article, we will discuss logical operators in Python definition and also look at some Python logical operators programs, to completely grasp the concept.

## Logical operators in Python

In Python, Logical operators are used on conditional statements (either True or False). They perform Logical AND, Logical OR, and Logical NOT operations.

OPERATORDESCRIPTIONSYNTAXExample
andReturns True if both the operands are truex and yx>7 and x>10
orReturns True if either of the operands is truex or yx<7 or x>15
notReturns True if the operand is falsenot xnot(x>7 and x> 10)

### Truth Table for Logical Operators in Python

Truth Table for Python Logical Operators

## Logical AND operator in Python

The logical AND operator returns True if both the operands are True else it returns False.

### Logical AND operator in Python Examples:

Let’s look at some Python AND operator programs, and understand the workings of AND operator.

Example 1:

## Python3

 `# Python program to demonstrate ``# logical and operator ``a ``=` `10``b ``=` `10``c ``=` `-``10``if` `a > ``0` `and` `b > ``0``: ``    ``print``(``"The numbers are greater than 0"``) ``if` `a > ``0` `and` `b > ``0` `and` `c > ``0``: ``    ``print``(``"The numbers are greater than 0"``) ``else``: ``    ``print``(``"Atleast one number is not greater than 0"``)`

Output

`The numbers are greater than 0Atleast one number is not greater than 0`

Example 2:Â

## Python3

 `# Python program to demonstrate ``# logical and operator ``a ``=` `10``b ``=` `12``c ``=` `0``if` `a ``and` `b ``and` `c: ``    ``print``(``"All the numbers have boolean value as True"``) ``else``: ``    ``print``(``"Atleast one number has boolean value as False"``)`

Output

`Atleast one number has boolean value as False`

Note: If the first expression is evaluated to be false while using the AND operator, then the further expressions are not evaluated.

## Logical OR operator in Python

Logical OR operator returns True if either of the operands is True.

### Logical OR operator in Python Examples

Let’s look at some Python OR operator program to understand it’s workingsÂ

Example 1:Â

## Python3

 `# Python program to demonstrate ``# logical or operator ``a ``=` `10``b ``=` `-``10``c ``=` `0``if` `a > ``0` `or` `b > ``0``: ``    ``print``(``"Either of the number is greater than 0"``) ``else``: ``    ``print``(``"No number is greater than 0"``) ``if` `b > ``0` `or` `c > ``0``: ``    ``print``(``"Either of the number is greater than 0"``) ``else``: ``    ``print``(``"No number is greater than 0"``)`

Output

`Either of the number is greater than 0No number is greater than 0`

Â  Example 2:Â

## Python3

 `# Python program to demonstrate ``# logical and operator ``a ``=` `10``b ``=` `12``c ``=` `0``if` `a ``or` `b ``or` `c: ``    ``print``(``"Atleast one number has boolean value as True"``) ``else``: ``    ``print``(``"All the numbers have boolean value as False"``)`

Output

`Atleast one number has boolean value as True`

Note: If the first expression is evaluated to be True while using or operator, then the further expressions are not evaluated.

## Logical NOT operator in Python

The logical not operator works with a single boolean value. If the boolean value is True it returns False and vice-versa.

### Logical NOT operator in Python Examples

Let’s look at this Python NOT operator program to understand its working.Â

Example:Â

## Python3

 `# Python program to demonstrate ``# logical not operator ``a ``=` `10` `if` `not` `a: ``    ``print``(``"Boolean value of a is True"``) ``if` `not` `(a``%``3` `=``=` `0` `or` `a``%``5` `=``=` `0``): ``    ``print``(``"10 is not divisible by either 3 or 5"``) ``else``: ``    ``print``(``"10 is divisible by either 3 or 5"``)`

Output

`10 is divisible by either 3 or 5`

## Order of Precedence of Logical Operators

In the case of multiple operators, Python always evaluates the expression from left to right. We can verify Python logical operators precedence by the below example.Â

Example:Â

## Python3

 `# Python program to demonstrate ``# order of evaluation of logical ``# operators ``def` `order(x): ``    ``print``(``"Method called for value:"``, x) ``    ``return` `True` `if` `x > ``0` `else` `False`  `a ``=` `order ``b ``=` `order ``c ``=` `order ``if` `a(``-``1``) ``or` `b(``5``) ``or` `c(``10``): ``    ``print``(``"Atleast one of the number is positive"``)`

Output

`Method called for value: -1Method called for value: 5Atleast one of the number is positive`