Print Vowels in a String in Python

Previously we have to check a character is a vowel or consonant, check if a string starts with the vowel, and count vowels in a string. Now in this post, we will print vowels in a string in python using for loop and list comprehension. Also, develop a Python program to print vowels and consonants in a string. The alphabets ‘A’, ‘E’, ‘I’, ‘O’, ‘U’ (in uppercase) and ‘a’, ‘e’, ‘i’, ‘o’, ‘u’ are vowels, and remaining alphabets are called consonants.

Print Vowels in a String in Python using For Loop

This python program using the for loop to print vowels in a string. We will take a user-defined function to check and print if a string contains vowels. Then, we will take a string while declaring the variables. Finally, call the function and the result will be displayed on the screen.

# Python program to print vowels in a string

def printVowels(string):
    # to print the vowels
    for char in string:
        if char in "aeiouAEIOU":
            print(char, end=', ')
    return char

# take input
string = input('Enter any string: ')

# calling function
printVowels(string)

Output for the different input values:-

Enter any string: Know Program
o, o, a,

Enter any string: vowel and consonant
o, e, a, o, o, a,

Enter any string: Python Program to print Vowels in a String
o, o, a, o, i, o, e, i, a, i,

Python Program to Print Vowels in a String

This python program also performs the same task but in a different way. This is the simplest and efficient way to find vowels in a string.

# Python program to print vowels in a string

def printVowels(string):
    # to print the vowels
    vowels = [each for each in string if each in "aeiouAEIOU"]
    print(vowels)

# take input
string = input('Enter any string: ')

# calling function
printVowels(string)

Output:-

Enter any string: Python Java HTML CSS JAVASCRIPT
[‘o’, ‘a’, ‘a’, ‘A’, ‘A’, ‘I’]

Python Program to Print Vowels and Consonants in a String

In the above program, we will print only vowels present in a string but in this program, print vowels and consonants in a string using the if-else statement.

# Python program to print vowels and consonants in a string

def vowelConsonant(string):
    #check alphabet or not
    if not string.isalpha():
        return 'Neither'
    #check vowel or consonant
    if string.lower() in 'aeiou':
        return 'Vowel'
    else:
        return 'Consonant'

# take input
string = input('Enter any string: ')

# calling function and display result
for ch in string:
    #print vowels and consonants
    print(ch,'is',vowelConsonant(ch),end=' : ')

Output:-

Enter any string: Python
P is Consonant : y is Consonant : t is Consonant : h is Consonant : o is Vowel : n is Consonant :

Enter any string: Java
J is Consonant : a is Vowel : v is Consonant : a is Vowel :

Enter any string: programming
p is Consonant : r is Consonant : o is Vowel : g is Consonant : r is Consonant : a is Vowel : m is Consonant : m is Consonant : i is Vowel : n is Consonant : g is Consonant :

In this program, the isalpha() method returns True if all characters in the string are alphabets. If not, it returns False. The lower() method converts all uppercase characters to lowercase characters.

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