Python Program to Count the Number of Each Vowel

Here in this article, we have provided two python source codes that count the number of vowels present in the user-entered string.

Prerequisite Python Program to Count the Number of Each Vowel

• Python Loop
• Python Input-Output
• Python string
• Python member operators
• Python string methods
• Python string count method
• Python Dictionary

Python Program to Count the Number of Each Vowel (Using For Loop)

Steps:

• Ask the user to enter a string.
• Use the for loop and iterate through the user-entered string character by character.
• Check for the condition if the character is a vowel, then using a dictionary makes a key-value pair where the key would be the vowel itself and the value is its occurrence.
• At last, print the dictionary.

Python Code:

string = input("Enter the String: ").lower()

vowel = "aeiou"

count ={'a':0, 'e':0,'i':0,'o':0,'u':0}   #dictionary whihc keys are vowels and its values arevowel occurance
#iterate through string
for i in string:
    #check if i is a vowel
    if i in vowel:
        if  not(count[i] == 0):
            count[i] +=1    #increse the count of vowel by 1 if it occure again
        else:
            count[i] =1   #set the count of vowel 1 if the vowel occuring first time.

for j in count:
    print("There are ", count[j], j," in", string )

Output 1:

Enter the String: This is an example
There are 2 a in this is an example
There are 2 e in this is an example
There are 2 i in this is an example
There are 0 o in this is an example
There are 0 u in this is an example

Output 2:

Enter the String: Welcome to techgeekbuzz
There are 0 a in welcome to techgeekbuzz
There are 5 e in welcome to techgeekbuzz
There are 0 i in welcome to techgeekbuzz
There are 2 o in welcome to techgeekbuzz
There are 1 u in welcome to techgeekbuzz

Python Program to Count the Number of Each Vowel (Using String Count method):

In python, we have the count() method, which can be used to count the number of occurrences of a character in a string.

Python Code:

string = input("Enter the String: ").lower()

vowel = "aeiou"
count ={ } # create an empty dictionary

for i in vowel:
    #count the number of occurance of vowles
    count[i]= string.count(i)

for j in count:
    print("There are ", count[j], j," in", string )

Output 1:

Enter the String: This is an example
There are 2 a in this is an example
There are 2 e in this is an example
There are 2 i in this is an example
There are 0 o in this is an example
There are 0 u in this is an example

Output 2:

Enter the String: Welcome to techgeekbuzz
There are 0 a in welcome to techgeekbuzz
There are 5 e in welcome to techgeekbuzz
There are 0 i in welcome to techgeekbuzz
There are 2 o in welcome to techgeekbuzz
There are 1 u in welcome to techgeekbuzz

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