class IceCreamStand(Restaurant):
      def __init__(self,restaurant_name, cuisine_type):
          super().__init__(restaurant_name, cuisine_type)
         
      def describe_flavors(self,*flavors):
          print(f'{self.restaurant_name} has the following flavors:')
          for self.flavor in flavors:
              print(f'-{self.flavor}')
           
restaurant =IceCreamStand('DQ','ice cream')
restaurant.describe_restaurant()
restaurant.describe_flavors('Chocolate','Mango', 'Raspberry', 'Coffee', 'Vanilla')

请尝试使用以下代码：

def __init__(self, *attribute1):
    self.atributte1 = attribute1

使用任意参数列表。参见this答案。
示例：

li = []
def example(*arg):
    li = list(arg)
    print(li)

example('string1', 'string2', 'string3')

据我所知，你正在做Python速成课程第9章的练习，这是我在另一个练习中做的代码，希望对你有帮助。

class Restaurant():
"""A simple attempt to model a restaurant."""

    def __init__(self, restaurant_name, cusisine_type):
        self.name = restaurant_name
        self.type = cusisine_type

    def describe_restaurant(self):
        print("Restaurant name is " + self.name.title() + ".")
        # print(self.name.title() + " is a " + self.type + " type restaurant.")

    def open_restaurant(self):
        print(self.name.title() + " is open!")

class IceCreamStand(Restaurant):
"""Making a class that inherits from Restaurant parent class."""

    def __init__(self, restaurant_name, cusisine_type):
        super().__init__(restaurant_name, cusisine_type)
        self.flavor = 'chocolate'

    def display_flavors(self):
        print("This icrecream shop has " + self.flavor + " flavor.")

# create an instance of IceCreamStand
falvors = IceCreamStand('baskin robbins', 'icecream')

# print("My restaurant name is: " + falvors.name)
# print("Restaurant is which type: " + falvors.type)
falvors.describe_restaurant()
falvors.open_restaurant()

# Calling this method
falvors.display_flavors()