Python: OOP

• self vs cls
• __call__

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self vs cls

• cls belongs to the class (static method)
• self refer to instance of class

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__call__

this method enables to write classes where the instances behave like functions and can be called like a function

class Example:
    def __init__(self):
        print("Instance Created")

    # Defining __call__ method
    def __call__(self):
        print("Instance is called via special method")

# Instance created
e = Example()

# __call__ method will be called
e()

# Instance Created
# Instance is called via special method

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