In this tutorial we are going to learn about counting the Number of Vowels in a String in Python.

Python Program to Count the Number of Vowels in a String

string=raw_input("Enter string:")
vowels=0
for i in string:
      if(i=='a' or i=='e' or i=='i' or i=='o' or i=='u' or i=='A' or i=='E' or i=='I' or i=='O' or i=='U'):
            vowels=vowels+1
print("Number of vowels are:")
print(vowels)

Explanation

1. User must enter a string and store it in a variable.
2. The count variable is initialized to zero.
3. The for loop is used to traverse through the characters in the string.
4. An if statement checks if the character is a vowel or not.
5. The count is incremented each time a vowel is encountered.
6. The total count of vowels in the string is printed.