Code Completion 4 Challenges

Complete the Python Callable Object Code

Practice making instances callable with __call__ and using callable-object behavior.

Advanced ~9 min read

Add call so the instance returns a greeting.

python Your answer

class Greeter:
    

greet = Greeter()
print(greet("Mina"))

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Increment the stored count each time the callable instance is called.

python Your answer

class Counter:
    def __init__(self):
        self.count = 0

    

counter = Counter()
print(counter())
print(counter())

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Make the callable accept a value and multiplier and return their product.

python Your answer

class Multiplier:
    def __call__(self, value, multiplier):
        

multiply = Multiplier()
print(multiply(6, 7))

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Override call and use the base implementation through super().

python Your answer

class AddOne:
    def __call__(self, value):
        return value + 1

class DoubleThenAdd(AddOne):
    def __call__(self, value):
        

operation = DoubleThenAdd()
print(operation(4))

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