NameError: kwargs is not defined

class Character:
    experience = 0
    hit_points = 10

    def get_weapon(self):
        weapon_choice = input('choose [S]word, [A]xe, or [B]ow: ')
        while weapon_choice not in 'SAB':
            weapon_choice = input('{} is not a choice. You must choose [S]word, [A]xe, or [B]ow: '.format(weapon_choice))
        if weapon_choice in 'SAB':
            if weapon_choice == 'S':
                weapon = 'sword'
            elif weapon_choice == 'A':
                weapon = 'axe'
            else:
                weapon = 'bow'
            return weapon
    def __init__(self, **kwargs):
        self.name = input('Name: ')
        self.weapon = self.get_weapon()

        for key, value in kwargs.items():
            setattr(self, key, value)