Python-我可以访问调用我的对象吗? [英] Python - Can I access the object who call me?

问题描述

如果我有这个:

class A:
    def callFunction(self, obj):
        obj.otherFunction()

class B:
    def callFunction(self, obj):
        obj.otherFunction()

class C:
    def otherFunction(self):
        # here I wan't to have acces to the instance of A or B who call me.

...

# in main or other object (not matter where)
a = A()
b = B()
c = C()
a.callFunction(c) # How 'c' know that is called by an instance of A...
b.callFunction(c) # ... or B

尽管有设计或其他问题，但这只是一个有疑问的问题.

Despite the design or other issues, this is only a question of an inquiring mind.

注意:必须在不更改的情况下完成 otherFunction 签名

Note: This has to be done without changing otherFunction signature

推荐答案

如果这是出于调试目的，则可以使用inspect.currentframe():

If this is for debugging purposes you can use inspect.currentframe():

import inspect

class C:
    def otherFunction(self):
        print inspect.currentframe().f_back.f_locals

以下是输出:

>>> A().callFunction(C())
{'self': <__main__.A instance at 0x96b4fec>, 'obj': <__main__.C instance at 0x951ef2c>}

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