cannot override sys.excepthook

Question

I try to customize behavior of sys.excepthook as described by the recipe.

in ipython:

:import pdb, sys, traceback
:def info(type, value         


        

Answer 1

expanding on Chris answer, you can use another function like a decorator to add your own functionality to jupyters showbacktrace:

from IPython.core.interactiveshell import InteractiveShell
from functools import wraps
import traceback
import sys

def change_function(func):
    @wraps(func)
    def showtraceback(*args, **kwargs):
        # extract exception type, value and traceback
        etype, evalue, tb = sys.exc_info()
        if issubclass(etype, Exception):
            print('caught an exception')
        else:
            # otherwise run the original hook
            value = func(*args, **kwargs)
            return value
    return showtraceback

InteractiveShell.showtraceback = change_function(InteractiveShell.showtraceback)

raise IOError