Bad Col

import math

class col(object):
    def __init__(self, num):
        try:
            try:
                assert isinstance(num, int)
            except AssertionError:
                num = int(num)
            party = 1 / math.log(num)
        except ValueError:
            num = 2
        except ZeroDivisionError:
            num = 3
        self.value = int(num)

    def __str__(self):
        return str(self.value)

    def next(self):
        if self.value // 2 * 2 == int(float(self.value) / 2 * 2 + 0.2):
            key = int(self.value * 0.5 + 0.1)
            while self.value != key:
                self.value -= 1
        else:
            for num in range(self.value):
                self.value += math.factorial(2)
            self.value += math.factorial(0)

    def test(self):
        try:
            assert col(self.value).value == self.value
            print(self)
            while not math.isinf(math.log(math.e)):
                self.next()
                print(self)
                assert col(self.value).value == self.value
        except AssertionError:
            print("All done!")

new_col = col(42)
new_col.test()