Who calls my func?

Source: https://stackoverflow.com/questions/2654113/how-to-get-the-callers-method-name-in-the-called-method

import inspect

def f1(): f2()

def f2():
    curframe = inspect.currentframe()
    calframe = inspect.getouterframes(curframe, 2)
    print('caller name:', calframe[1][3])

f1()
caller name: f1