Count Vowels

Enter a string and the program counts the number of vowels in the text.

def count_vowels(string):

    vowels = ['a','e','i','o','u','A','E','I','O','U']

    count = 0

    for char in string:
        for vowel in vowels:
            if char == vowel:
                count +=1

    print('Number of vowels in the given string is', count)

count_vowels('Hi')

Number of vowels in the given string is 1

def count_vowels(string):

    vowels = ['a','e','i','o','u']
    lower_string = string.lower()

    count = 0

    for char in lower_string:
        for vowel in vowels:
            if char == vowel:
                count +=1

    print('Number of vowels in the given string is', count)

count_vowels('HI')

Number of vowels in the given string is 1