Python: Object initialised inside a Class?

Question

Is possible and, if so, common practice to initialize an object inside a class in Python?

self.field = Class()

Answer 1

Everything in Python is an object, so yes, this is common practice. You could not create a meaningful Python program without creating other instances in your own classes.

Answer 2

If you want to do it in a Object Oriented way, you could pass a factory into the class, so that you can instantiate your class using a factory method:

    self.field = myFactory.GetSomeClass()