PySlots3, Python 3

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#python 3.6.9
#PySlots3: Demonstration of subclass uses slots but base class doesn't and how to use private method

#this code is created by Rezaul Hoque on January 09,2022;contact: jewelmrh@yahoo.com,Dhaka, Bangladesh
#note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;

class Food:

def __init__(self, food,color):
        self.food = food
        self.color = color
        
 
class CookedFood(Food):
    __slots__= ('price',)
    def __init__(self,food,color,price):
          super().__init__(food,color)
          self.price = price
    def __banner(self):
              print("Example: Subclass uses slots but base class doesn't")

if __name__ == '__main__':
         
         ic= CookedFood('Icecream','white',10)
         ic._CookedFood__banner()
         print (ic.__slots__)
         print(ic.__dict__)
         ic.taste='good'
         print(ic.__dict__)

[ + ] Show input
Absolute running time: 0.18 sec, cpu time: 0.04 sec, memory peak: 8 Mb, absolute service time: 0,22 sec