Example of reusing objects in Python

reusing.py

class Reusing:
    __free = []

    def __new__(cls, *args, **kwargs):
        try:
            return cls.__free.pop()
        except IndexError:
            return super(Reusing, cls).__new__(cls)

    def __del__(self):
        self.__free.append(self)


class OhMy(Reusing):
    def __init__(self, name):
        try:
            print(f'previous name: {self.name}')
        except AttributeError:
            pass
        self.name = name


a = OhMy('a')
print(f'a.name: {a.name}')

del a

c = OhMy('c')
print(f'c.name: {c.name}')