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Classic loop solution solution in Clear category for The Most Wanted Letter by Mysta
from string import ascii_lowercase
def checkio(text: str) -> str:
letters: str = ascii_lowercase
max: int = 0
most: str = ''
for l in letters:
c: int = text.lower().count(l)
if c > max:
max = c
most = l
return most
if __name__ == '__main__':
print("Example:")
print(checkio("Hello World!"))
#These "asserts" using only for self-checking and not necessary for auto-testing
assert checkio("Hello World!") == "l", "Hello test"
assert checkio("How do you do?") == "o", "O is most wanted"
assert checkio("One") == "e", "All letter only once."
assert checkio("Oops!") == "o", "Don't forget about lower case."
assert checkio("AAaooo!!!!") == "a", "Only letters."
assert checkio("abe") == "a", "The First."
print("Start the long test")
assert checkio("a" * 9000 + "b" * 1000) == "a", "Long."
print("The local tests are done.")
Jan. 2, 2026
