if-elif-else statement in Python

Python supports if-elif-else statements to test additional conditions apart from the initial test expression. This is also known as the nested-if construct.

The syntax of if-elif-else statement is given below:

if(condition 1):

statement block 1

elif(condition 2):

statement block 2

……………………………………………

elif(condition n):

statement block n

else:

default-statement

statement-x

The conditions are evaluated from the top downwards. As soon as the true condition is found, the statement associated with it is executed, and control is transferred to the statement-x. When all n conditions become false, then the final else containing the default statement is executed.

Example 1:

code=int(input("Enter the value of code="))
if(code==1):
    print("Red")
elif(code==2):
    print("Green")
elif(code==3):
    print("Blue")
elif(code==4):
    print("Yellow")
else:
    print("Orange")

Output:

Enter the value of code=5

Orange

Example 2:

s=input("Enter the character=")
if(s=="a" or s=="e" or s=="i" or s=="o" or s=="u"):
    print(s+" is a vowel")
elif(s=="A" or s=="E" or s=="I" or s=="O" or s=="U"):
    print(s+" is a vowel")
else:
    print(s+" is not a vowel")

Output:

Enter the character=A

A is a vowel