Home » Python

Python else Keyword

By IncludeHelp Last updated : December 07, 2024

Description and Usage

The else is a keyword (case-sensitive) in python, it is used in the conditional statement with if statement – when given condition with if statement if False, else block executes. Thus, else keyword is used to define a block to be executed if the given test condition is False.

Syntax

Syntax of else keyword:

if test_condition:
  statement(s)-true
else:
  statement(s)-false

Here, if test_condition is True, then statement(s)-true will be executed, if the test_condition is False, then statement(s)-false will be executed.

Sample Input/Output

Input:
str1 = "IncludeHelp"
str2 = "DUGGU"

# condition
if str1==str2:
    print("Both strings are equal")
else:
    print("Both strings are not equal")

Output:
Both strings are not equal

Example 1

Check whether a given number is equal to 0 or not.

# python code to demonstrate example of 
# if, else keywords

# Check whether a given number is equal to 0 or not

# number 
num = 10

if num==0:
    print(num, " is equal to 0")
else:
    print(num, " is not equal to 0")

Output

10  is not equal to 0

Example 2

Input two strings check whether they are equal or not.

# python code to demonstrate example of 
# if, else keywords

# Input two strings check whether
# they are equal or not

# input
str1 = input("Enter a string: ")
str2 = input("Enter another string: ")

# comparing strings 
if str1==str2:
    print("Both input strings are equal")
else:
    print("Both input strings are not equal")

Output

First run:
Enter a string: IncludeHelp.com
Enter another string: Duggu.org
Both input strings are not equal

Second run:
Enter a string: IncludeHelp
Enter another string: IncludeHelp
Both input strings are equal