Соединить числа в одно максимально возможное

join_max.py

# from functools import total_ordering

# @total_ordering
class Int(int):
    def __lt__(self, other):
        this, that = str(self), str(other)
        YES, NO = True, False
        if len(this) < len(that):  # everything is vice versa
            this, that = that, this
            YES, NO = NO, YES
        # compare EVERY digit of the longer value to the 1st digit of the other
        for i in this:
            if i < that[0]:
                return YES
        return NO

l = [10, 7, 76, 415]
x = ''.join(str(j) for j in sorted((Int(i) for i in l), reverse=True))
print(x)