gothon | A Python interpreter written in Go | Translation library

The mistake lies in the way you're instantiating the Map class.

You're doing a_map = Map('central corridor') but that string has no mapping in the Map class variable, called scenes.

As such, when you're doing val = Map.scenes.get(scene_name) in the next_scene method, this will result in Map.scenes.get('central corridor'), which it can't find, which will result in the special value None. It's just a typo :)

The solution to this is to change this:

a_map = Map('central corridor')

to this:

a_map = Map('central_corridor')

You are formatting healthbar (creating the string) with the old health value, modifying the health value, then printing the old health value again.

I would recommend making a "formattable" string template and only formatting when necessary. You could also make a function to print it. I trust that you know how to write a function for this, so here is how to use the format template technique:

Map.scenes is a list, but you're attempting to access it by key name like it was a dictionary. I don't have the book so I can't tell you how it should be set up, but I think your scenes variable in the Map object should be a dictionary, where the key names are strings, and the values are instances of classes, like so:

See the error. It is the reason you want. You have placed return outside a function. You can only write return in the scope of a function. Since the return at line 109 is inside a class definition while not in a function, python raises a error. You'd better write a function as you did in class LaserWeaponArmory(Scene)

I geuss you wanted a dictionary in your Map class:

enter() must be a function of the scene class (which is generated in the first function line). It is not an in-built Python functionality