for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
from functools import reduce
from operator import mul
def checkio(number):
return reduce(mul, map(int, list(str(number).replace('0', ''))))
# These "asserts" using only for self-checking and not necessary for
# auto-testing
if __name__ == '__main__':
assert checkio(123_405) == 120
assert checkio(999) == 729
assert checkio(1000) == 1
assert checkio(1111) == 1