如何追溯python3.7中引发的错误？

Question

I have a typical scenario where I have a module like below:

def fun2():
   #does something which can throw a ValueError exception

def fun3():
   #does something which can throw a ValueError exception

def fun1:
   fun2() #call to fun2
   fun3() #call to fun3

def fun0:
   try:
       fun1()
   except ValueError as e: 
       ##try to find out from which function ValueError Exception is thrown 
       print(customErrorMsg)

How can I find out that in the except block of fun0 , error is thrown from fun2 or fun3 ? I tried e.__traceback__ but it doesnt give useful output. Strictly speaking, I want to print different customErrorMsg when the exception is thrown from fun2 or fun3 .

Answer 1

You could do this

def fun1:
    try:
        fun2() #call to fun2
    except ValueError as e:
        print(error_message)
    try:
        fun3() #call to fun3
    except ValueError as e:
        print(error_message)