Python - 在调用继承方法时创建附加语句

Question

假设我有这个:

class Foo:
    ...
    def func():
        return 1+2

class Bar(Foo):
    ...
    def another_func():
        # additional stuff I want to do when my parent's func() is called

我不想覆盖 func ，但我确实想在它被调用时添加一些额外的语句。另外，我不想更改原始的 Foo.func。

有可能吗？如果没有，是否有解决方法？

Answer 1

没有办法做到这一点，规范的解决方案是覆盖 func 并像 sop 一样包装原始函数>

class Bar(Foo):
    ...
    def func():
        # additional stuff I want to do when my parent's func() is called
        res = super(Bar, self).func()  # super().func() on Py3
         # additional stuff I want to do after my parent's func() is called
        return res