Question

Use the Design Recipe to write a function count_vowels, which consumes a string and returns the number of vowels in that string. For these purposes, the vowels are a, e, i, o, and u, but never y. Include a Docstring! Note: Count both upper and lowercase vowels! Write 3 assert_equal statements to test your function.

Answer 1

def count_vowels(message):

    """ consumes a string and returns the number of vowels in that string"""

    letter_list = list(message.lower())

    "*** YOUR CODE HERE ***"

    ans=0

    vowel_list=['a','e','i','o','u']

    for letter in letter_list:

        if letter in vowel_list:

            ans+=1

    return ans

    

    

x=str(input("Enter String: "))

y=count_vowels(x)

print("the number of vowels in given string = "+str(y))

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