#!/usr/bin/env python3

from abc import ABCMeta, abstractmethod

class Terminator(metaclass=ABCMeta):
    def __init__(self):
        self.props = {}

    def template_method(self):
        self.legs_cnt()
        self.hands_cnt()
        self.liquid_body()
        self.steel_skeleton()
        return self

    @abstractmethod
    def legs_cnt(self):
        pass

    @abstractmethod
    def hands_cnt(self):
        pass

    def liquid_body(self):
        pass

    def steel_skeleton(self):
        pass


class T_800(Terminator):
    def legs_cnt(self):
        self.props['legs_cnt'] = 2

    def hands_cnt(self):
        self.props['hands_cnt'] = 2

    def steel_skeleton(self):
        self.props['steel_skeleton'] = True

class T_1000(Terminator):
    def legs_cnt(self):
        self.props['legs'] = 2

    def hands_cnt(self):
        self.props['hands_cnt'] = 2

    def liquid_body(self):
        self.props['liquid_body'] = True


t_800 = T_800().template_method()
print(t_800.__class__, t_800.props)

t_1000 = T_1000().template_method()
print(t_1000.__class__, t_1000.props)