Python String Program To Count Vowels

Task: Write a Python String Program To Count Vowels – This python programming tutorial will explain how to find the number of vowels in a given string. The user will input the string at run time.

We will use simple if statement with logical operators and comprison operators. So that we can check whether a given character in the string is a vowl or not.

To get each character from string one by one we will use a for loop as it is used on collections.

The Source Code of Python String Program To Count Vowels

# Write a Python program to
# count vowels in a string
# The user will enter String
# during program execution

# display message to enter string
# and get input string
str1 = input("Enter a string to find number of vowels:")


# declare and set vowel_count variable to zero 
vowel_count = 0

# get all characters one by one
# and check each character for vowel
# if vowel increment count1 by 1.

for i in str1:
	# check the conditions for vowels
	if( i=='A' or i=='a' or i=='E' or i=='e'
	or i=='I' or i=='i' or i=='O' or i=='o'
	or i=='U' or i=='u'):
		vowel_count +=1;
		
# now print vowel_count
print("Total vowels in given string are: ", vowel_count)

The output of this Vowel counter program is as follows:
Enter a string to find number of vowels:abcde
Total vowels in given string are: 2

Since there are only two vowels ‘a’ and ‘e’ in the string “abcde”.