Help with classes

[J125]

I'll remember that the next time nilamo. Thanks.

So, I tried your suggestion, but I still got the same error:

Error:
Traceback (most recent call last):
  File "ex43_mine.py", line 253, in <module>
    a_game.play()
  File "ex43_mine.py", line 44, in play
    next_scene_name = current_scene.enter()
  File "ex43_mine.py", line 66, in enter
    loaded_alien = load_alien('central_corridor')
NameError: global name 'load_alien' is not defined

My Aliens class now looks like this, with the rest the same as before:

class Alien(object):

    def __init__(self, alien_name, alien_lair):
        self.alien_name = alien_name
        self.alien_lair = alien_lair
        self.health = 2

        aliens = {
            'central_corridor': 'puppeteer',
            'laser_weapon_armory': 'kzin',
            'the_bridge': 'trooper',
            'escape_pod': 'predator',
        }

    # loads corresponding alien onto scene
    def load_alien(self, alien_lair):
        alien = self.aliens(alien_lair)
        return alien

Also, shouldn't get() be used to return the key value from the dict, which in this case is the alien itself? I'm using lines 230-232 as a point of reference here.

Cheers,