In python implement a class, An address has a house number, a street, an optional apartment number, a city, a state, and a postal code. Define the constructor such that an object can be created in one of two ways: with an apartment number or without. Supply a print method that prints the address with the street on one line and the city, state, and postal code on the next line. Supply a method def comes before(self, other) that tests whether this address comes before others when compared by postal code. This method should return a boolean value.

Develop your class in one file and create a test file for testing your class.