How To Print The Stack Trace Of An Exception Object In Python?

How to print the stack trace of an exception object in Python? Note that the question is NOT about printing stack trace of LAST exception. Exception object may be saved at some dis

Solution 1:

It's a bit inconvenient, but you can use traceback.print_exception. Given an exception ex:

traceback.print_exception(type(ex), ex, ex.__traceback__)

Example:

import traceback

try:
    1/0except Exception as ex:
    traceback.print_exception(type(ex), ex, ex.__traceback__)

# output:# Traceback (most recent call last):#   File "untitled.py", line 4, in <module>#     1/0# ZeroDivisionError: division by zero

Solution 2:

you can manually iterate through the __traceback__ attribute to print lines & files:

def function():
    raise ValueError("flfkl")

try:
    function()
except Exception as e:
    traceback = e.__traceback__
    whiletraceback:
        print("{}: {}".format(traceback.tb_frame.f_code.co_filename,traceback.tb_lineno))
        traceback = traceback.tb_next