• no ‘getters’ or ‘setters’, just access the attributes directly

  print(world.current)

  not

  print(world.get_current())

• no private/public distinction, all methods and variables are accessible by the outside
  • by convention, methods and variables staring with ‘_’ are meant to be private. The language does not inforce access control, the naming convention aids developers.

• If you need to add logic to the getter/setter, use a property

  class MyClass:
     def __init__(self):
         self._my_attr = 42
     ...
     @property
     def my_attr(self):
         return self._my_attr
  
     @my_attr.setter
     def my_attr(self, value):
         self._my_attr = value

Defining an API for World

• Need a way of accessing the “current” room
• Need a way to “go” in a particular direction, changing the current room.