WrapperException

wrapper_exception.py

# coding=utf-8

import traceback
import sys
import logging


logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger('test')


class WrapperException(Exception):
    """
    WrapperException.     
    """
    def __init__(self, cause, *args):
        """
        :type cause: tuple
        :param cause: 其格式语义与 sys.exc_info() 一致.
        
        :param args: 其语义与 Exception() 的构造函数一致. 用来存放额外的信息.
        """
        Exception.__init__(self, *args)
        self.cause = cause

    def __str__(self):
        exc_str = Exception.__str__(self)
        exc_str += ' CAUSED BY: \n'
        for msgstr in traceback.format_exception(*self.cause):
            exc_str += msgstr
        return exc_str


def h1():
    raise Exception(1, 2, 3)


def h2():
    h1()


def h3():
    try:
        h2()
    except:
        raise WrapperException(sys.exc_info(), 9, 9, 9)


def h4():
    h3()


def h5():
    try:
        h4()
    except:
        raise WrapperException(sys.exc_info(), 0x66, 0xcc, 0xff)


def h6():
    h5()


def h7():
    try:
        h6()
    except:
        logger.exception('i got you')

if __name__ == '__main__':
    h7()

youtput.log

ERROR:test:i got you
Traceback (most recent call last):
  File "main.py", line 64, in h7
    h6()
  File "main.py", line 59, in h6
    h5()
  File "main.py", line 55, in h5
    raise WrapperException(sys.exc_info(), 0x66, 0xcc, 0xff)
WrapperException: (102, 204, 255) CAUSED BY: 
Traceback (most recent call last):
  File "main.py", line 53, in h5
    h4()
  File "main.py", line 48, in h4
    h3()
  File "main.py", line 44, in h3
    raise WrapperException(sys.exc_info(), 9, 9, 9)
WrapperException: (9, 9, 9) CAUSED BY: 
Traceback (most recent call last):
  File "main.py", line 42, in h3
    h2()
  File "main.py", line 37, in h2
    h1()
  File "main.py", line 33, in h1
    raise Exception(1, 2, 3)
Exception: (1, 2, 3)