Implementation of Cantor set explained here: http://natureofcode.com/book/chapter-8-fractals/

cantor_set.py

from copy import deepcopy


class Line:
    def __init__(self, length: int, x: int):
        self.length = length
        self.x = x

    def __len__(self):
        return self.length

    def __floordiv__(self, divisor: int):
        self.length = self.length // divisor
        return self

    def __str__(self):
        string = '\n'
        string += ' ' * self.x
        string += '.' * self.length
        return string


def cantor_set(line: Line):

    if len(line) > 1:
        line //= 3
        left = line.x
        right = left + 2 * len(line)
        for x in [left, right]:
            line.x = x
            print(line)
            cantor_set(deepcopy(line))


if __name__ == '__main__':
    line = Line(36, 0)

    print(line)
    cantor_set(line)

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