🚀 Day 64/150 – Count Vowels in a String in Python

Vowels are the letters: a, e, i, o, u.
In Python, we can count vowels in a string using loops, list comprehensions, and functions.

Let’s explore different ways to count vowels in Python 👇

🔹 Method 1 – Using for Loop

text = "Python Programming"

count = 0

for ch in text.lower():
    if ch in "aeiou":
        count += 1

print("Vowel Count:", count)








✅ Output

Vowel Count: 4

📌 Loops through each character and increases the count when a vowel is found.

🔹 Method 2 – Taking User Input

text = input("Enter a string: ")

count = 0

for ch in text.lower():
    if ch in "aeiou":
        count += 1

print("Vowel Count:", count)








📌 Allows the user to enter any string dynamically.

🔹 Method 3 – Using List Comprehension
text = "Python Programming"

count = sum([1 for ch in text.lower() if ch in "aeiou"])

print("Vowel Count:", count)



✅ Output
Vowel Count: 4
📌 Short and Pythonic way to count vowels.
🔹 Method 4 – Using Function
def count_vowels(text):
    count = 0

    for ch in text.lower():
        if ch in "aeiou":
            count += 1

    return count

print(count_vowels("Python Programming"))







✅ Output
4
📌 Best approach when you want reusable code.

🔥 Key Takeaways
✅ lower() helps handle uppercase and lowercase letters

✅ in "aeiou" is an easy way to check vowels

✅ List comprehensions make code shorter

✅ Functions improve reusability and readability