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Inspired by Veky solution in Clear category for Speech Module by igharok
FIRST_TEN = ["one", "two", "three", "four", "five", "six", "seven",
"eight", "nine"]
SECOND_TEN = ["ten", "eleven", "twelve", "thirteen", "fourteen", "fifteen",
"sixteen", "seventeen", "eighteen", "nineteen"]
OTHER_TENS = ["twenty", "thirty", "forty", "fifty", "sixty", "seventy",
"eighty", "ninety"]
HUNDRED = "hundred"
def checkio(num_to_say):
list_digits = [''] + FIRST_TEN + SECOND_TEN
dict_digits = {**dict(enumerate(list_digits)), **dict(zip(range(20, 100, 10), OTHER_TENS))}
num_hundreds = num_to_say // 100
list_letters = ([dict_digits[num_hundreds], 'hundred'] if num_hundreds else [])
num_residual = num_to_say - 100 * num_hundreds
list_letters += [dict_digits[num_residual]] if (num_residual < 20) else [dict_digits[num_residual - num_residual % 10], dict_digits[num_residual % 10]]
return ' '.join(list_letters).strip()
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
assert checkio(4) == 'four', "1st example"
assert checkio(133) == 'one hundred thirty three', "2nd example"
assert checkio(12) == 'twelve', "3rd example"
assert checkio(101) == 'one hundred one', "4th example"
assert checkio(212) == 'two hundred twelve', "5th example"
assert checkio(40) == 'forty', "6th example"
assert not checkio(212).endswith(' '), "Don't forget strip whitespaces at the end of string"
print('Done! Go and Check it!')
April 2, 2020
