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find_most_frequent_letter solution in Clear category for The Most Wanted Letter by DJO3
def checkio(text):
clean_text = text.lower()
alphabet = []
common = []
freq = ('a', 0)
for element in clean_text:
if element.isalpha():
alphabet.append(element)
for letter in set(alphabet):
total = clean_text.count(letter)
common.append((letter, total))
for x in sorted(common):
if x[1] > freq[1] and x[0] >= freq[0]:
freq = x
return freq[0]
if __name__ == '__main__':
#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.")
April 21, 2015
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