find_throwing_func.py

import random, inspect

def func_a():
    if bool(random.getrandbits(1)):
        func_b()
    else:
        func_c()

def func_b():
    raise Exception('Bang!')

def func_c():
    raise Exception('Bang!')


try:
    func_a()
except Exception as e:
    frame = inspect.trace()[-1].frame
    throwing_func = func_b if frame.f_code is func_b.__code__ else func_c
    
    if throwing_func is func_b:
        print('caught from func_b')
    else:
        print('caught from func_c')