Setup a dedicated exception

scratch_exception.py

class ErrorTest(Exception):
    """ A message about one error"""
    pass


class ExceptTest(Exception):
    """ A message about one error"""
    pass


def simple_func(value):
    try:
        if value == 0:
            raise ExceptTest
        elif value == 1:
            raise ErrorTest
        else:
            return True
    
    except (ExceptTest, ErrorTest) as exception:
        print(f'Error message :  {exception.__doc__}')
        return {'ERROR'}