Help needed with polymorphism example

[stullis]

There are two related problems in your classes. First, every class method must have at least one argument because the class instance is passed in as the first argument to a method. By convention, "self" is the name for this required argument.

Related to that, any time you call a method from the same class, you must call it as "self.method". Otherwise, that will return an error as well.

class Flowers:
    def cleaningTask(self):
        pass
 
    def performCleaningTask(self):
        self.cleaningTask()

class petalFlowers(Flowers):
    def cleanThePetals(self):
        print("petals are cleaned")
 
    def cleaningTask(self):
        self.cleanThePetals()
         
class sprayFlowers(Flowers):
    def sprayWater(self):
        print("only water is sprayed")
 
    def cleaningTask(self):
        self.sprayWater()