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Count the Vowels

Beginner · Write the code · from 50 Python Practice Problems with Instant Answer Checking (Beginner to Advanced)

From the lesson: 50 Python Practice Problems with Instant Answer Checking (Beginner to Advanced)

Fifty problems, each with a code editor and real tests. Write your solution, press Check, and see exactly which cases pass. Stuck? Hints reveal one at a time, and the solution unlocks once you have checked at least once. Your code and progress are saved in this browser.

Read the lesson

Write count_vowels(text) that returns how many vowels (a, e, i, o, u) the text contains, ignoring case.

count_vowels("Hello World")  ->  3
def count_vowels(text):
pass
Solution unlocks after your first Check

What Check runs

Your code runs first, then each of these lines. The output must match exactly.

RunsExpected output
count_vowels("Hello World")3
count_vowels("AEIOU")5

More practice problems

All Python exercises · 50 practice problems