class Pokemon(object):

def __init__(self, name, attack, defense, HP):
    self.name = name
    self.attack = attack
    self.defense = defense
    self.HP = HP
    self.attacks = {}

def Moves(self,move_1,damage_1,move_2,damage_2):
    self.attacks[move_1] = damage_1
    self.attacks[move_2] = damage_2

pikachu = Pokemon('Pikachu',40,10,50)
pidgey = Pokemon('Pidgey',50,30,60)

pikachu.Moves('tackle',50,'thunderbolt',70)
pidgey.Moves('gust',80,'tackle',50)