ymltest.py

import yaml


class Monster(yaml.YAMLObject):
    yaml_tag = u'!Monster'

    def __init__(self, name, hp, ac, attacks):
        self.name = name
        self.hp = hp
        self.ac = ac
        self.attacks = attacks

    def __repr__(self):
        return "%s(name=%r, hp=%r, ac=%r, attacks=%r)" % (
            self.__class__.__name__, self.name, self.hp, self.ac, self.attacks)


class Animal(yaml.YAMLObject):
    yaml_tag = u'!Animal'

    def __init__(self, **kwargs):
        self.mapping = kwargs

    def __repr__(self):
        return "{}(name={name}, hp={hp}, ac={ac}, attacks={attacks})".format(self.__class__.__name__, **self.__dict__)

animal = yaml.load("""
--- !Animal
name: Cave spider
hp: [2,6]    # 2d6
ac: 16
attacks: [BITE, HURT]
""")

monster = yaml.load("""
--- !Monster
name: Cave spider
hp: [2,6]    # 2d6
ac: 16
attacks: [BITE, HURT]
""")

print(yaml.dump(Monster(name='Cave lizard', hp=[3, 6], ac=16, attacks=['BITE', 'HURT'])))
print("animal: %s " % animal.__dict__)
print("monster: %s " % monster.__dict__)