class Test:

    option1 = []

    def __init__(self):
        self.option2 = []

    def test(self):
        self.option1.append('test')
        self.option2.append('test')



c = Test()
c.test()
print(c.option1, c.option2, '\n\n==\n') # ['test'] ['test']

c = Test()
c.test()
print(c.option1, c.option2, '\n\n==\n') # ['test', 'test'] ['test']