Creating a static class with no instances

Question

All of the tutorials I see online show how to create classes with __init__ constructor methods so one can declare objects of that type, or instances of that class.<

Answer 1

Seems that you need classmethod:

class World(object):

    allAirports = []

    @classmethod
    def initialize(cls):

        if not cls.allAirports:
            f = open(os.path.expanduser("~/Desktop/1000airports.csv"))
            file_reader = csv.reader(f)

            for col in file_reader:
                cls.allAirports.append(Airport(col[0],col[2],col[3]))

        return cls.allAirports