Python Program to Accept the Strings Which Contains all Vowels

Last Updated : 29 Dec, 2024

The problem is to determine if a string contains all the vowels: a, e, i, o, u. In this article, we’ll look at different ways to solve this.

Using all()

all() function checks if all vowels are present in the string. It returns True if every condition in the list comprehension is met.

Python

s = "Geeksforgeeks" v = 'aeiou'   # check if each vowel exists in the string if all(i in s.lower() for i in v):        print("True") else:     print("False")

Output

False

Let's understand more methods to accept the strings which contains all vowels .

Table of Content

Using set()

set() function is used to store unique elements and can efficiently check if all vowels are present in a string.

Python

s= "geeksforgeeks"  # Define set of vowels v= set('aeiou')  # Check if all vowels are present in the string (case-insensitive) if v.issubset(set(s.lower())):     print("True") else:     print("False")

Output

False

Using a Loop

Looping through the string, this method checks for the presence of each vowel. It stops early once all vowels are found, ensuring an efficient solution with linear time complexity.

Python

s = "education" v = 'aeiou'   a= set()   # Loop through each character in `s` for char in s.lower():     if char in v:               # Add the vowel to the found set         a.add(char)       if len(a) == 5:                # If all vowels are found, exit early         print("True")         break else:     print("False")

Output

True

Using regular expression

regular expression provide an efficient way to search for patterns in strings. This method uses regex to check if a string contains all five vowels (a, e, i, o, u), regardless of their order.

Python

import re  s = "geeksforgeeks"  # Check if all vowels are present using regex if re.search(r'(?=.*a)(?=.*e)(?=.*i)(?=.*o)(?=.*u)', s.lower()):        print("True") else:     print("False")

Output

False

Python Program to Accept the Strings Which Contains all Vowels

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Python Program to Accept the Strings Which Contains all Vowels

Using all()

Using set()

Using a Loop

Using regular expression

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