Supress traceback for custom Python exceptions

fail.py

#!/usr/bin/env python3
""" -*- coding: utf-8 -*- 
Example Python3 Raise Exception without Traceback
Example Python3 Hide Traceback
Python3 Custom Exception Class
Python3 custom exception suppress traceback example
Python3 custom exception without traceback example
Example Python Raise Exception without Traceback
Example Python Hide Traceback
Python Custom Exception Class
Python custom exception suppress traceback example
Python custom exception without traceback example
"""

import sys


class QuietError(Exception):
    # All who inherit me shall not traceback, but be spoken of cleanly
    pass


class ParseError(QuietError):
    # Failed to parse data
    pass


class ArgumentError(QuietError):
    # Some other problem with arguments
    pass


class TooMany(QuietError):
    # Too many results returned or values to unpack
    pass


def quiet_hook(kind, message, traceback):
    if QuietError in kind.__bases__:
        print('{0}: {1}'.format(kind.__name__, message))  # Only print Error Type and Message
    else:
        sys.__excepthook__(kind, message, traceback)  # Print Error Type, Message and Traceback

sys.excepthook = quiet_hook