How to get the calling class name inside a function

Question

I have 2 classes with a method called pick_up_phone.

class Work(object):

   def pick_up_phone(self):
       make_call()

class Home(object):

    def pick_up_phone(self):
       make_call()

The function make_call is not part of the class. How can I print the name of class that instigated the function within the function itself without passing anything to that function?

For example something like...

def make_call()
  print(????__.class__.__name__)???? <--- prints Home or Work class

Odd requirements. Why wouldn't you either make it part of the super class, or pass in the instance as a parameter? — Daniel Roseman
– Daniel Roseman, Commented Aug 20, 2015 at 10:20
It is odd, but the example explains the situation I have where I don't control the calling class only the function. I need to determine which class called my function. I know how to achieve this using self.__class__.__name__ however, with a function this wouldn't work. — MarkK
– MarkK, Commented Aug 20, 2015 at 10:23
possible duplicate of How to use inspect to get the caller's info from callee in Python? — Open AI - Opting Out
– Open AI - Opting Out, Commented Aug 20, 2015 at 10:24
@PeterWood I looked at that answer, but I don't understand how it relates very well. Maybe I just don't understand the answer given. — MarkK
– MarkK, Commented Aug 20, 2015 at 10:26

Chris Seymour · Accepted Answer · 2015-08-20 10:28:15Z

2

You could use the inspect module:

from inspect import getouterframes, currentframe


def make_call():
    print getouterframes(currentframe())[-1][-2][0]


class Work(object):
    def pick_up_phone(self):
        make_call()


class Home(object):
    def pick_up_phone(self):
        make_call()


Home().pick_up_phone()
Work().pick_up_phone()

Output:

Home().pick_up_phone()

Work().pick_up_phone()

answered Aug 20, 2015 at 10:28

Chris Seymour

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Comments

Community · Accepted Answer · 2017-05-23 12:14:36Z

0

You could get call stack from traceback module (see examples here Print current call stack from a method in Python code), but as Daniel said it is very bad approach in most cases.

edited May 23, 2017 at 12:14

CommunityBot

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answered Aug 20, 2015 at 10:25

ISanych

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