Classes in Python

class FirstClass:

    # Contructor, always taking the argument self + additional arguments
    # Is called on class instantiation

    def __init__(self, a, b):
        self.a = a
        self.b = b

    # Methods are defined just like regular functions
    def sum(self):
        print(self.a + self.b)

    def diff(self):
        print(self.a - self.b)


# Create an instance of FirstClass and assigns it to the variable l:
l = FirstClass(0, 10)


l.sum()
l.diff()