#__init__

from sources import daily, weekly print("Daily forecast:", daily.forecast()) print("Weekly forecast:") for number, outlook in enumerate(weekly.forecast(), 1): print(number, outlook)

Use __new__ when you need to control the creation of a new instance. Use __init__ when you need to control initialization of a new instance. __new__ is the first step of instance creation. It's called first, and is responsible for returning a new instance of your class. In contrast, __init__ doesn't return anything; it's only responsible for initializing the instance after it's been created. In general, you shouldn't need to override __new__ unless you're subclassing an immutable type like str, int, unicode or tuple.