在类属性更改时调用Python方法

您应该看看属性类。基本上，它使您可以封装行为和私有成员，而消费者甚至不会注意到它。

在您的示例中，您可能具有以下

goalie_pulled

class Team(object):    def __init__(self, team_name, tri_pre, goals, shots, goalie_pulled):        # Notice the identation here. This is very important.        self.team_name = team_name        self.tri_pre = tri_pre        self.goals = goals        self.shots = shots        # Prefix your field with an underscore, this is Python standard way for defining private members        self._goalie_pulled = goalie_pulled    @property    def goalie_pulled(self):        return self._goalie_pulled    @goalie_pulled.setter    def goalie_pulled(self, new_value):        self._goalie_pulled = new_value        goalie_pulled_tweet(self) #self is the current Team instance

从消费者的角度来看：

team = create_team_instance()# goalie_pulled_tweet is calledteam.goalie_pulled = 'some_value'

我建议您尽可能（且必须）使用属性，因为它们是一种很好的抽象方法。