Python如何从“全部捕获”中排除异常

Question

可以说我有这个：

try:
    result = call_external_service()
    if not result == expected:
        raise MyException()
except MyException as ex:
    # bubble up
    raise ex
except Exception:
    # unexpected exceptions from calling external service
    do_some_logging()

由于我对python的了解有限，所以我想不出一种优雅的方法来MyException异常，我希望可以做类似的事情：

try:
    result = call_external_service()
    if not result == expected:
        raise MyException()
except Exception, exclude(MyException):
    # unexpected exceptions from calling external service
    do_some_logging()

Answer 1

您的问题似乎是您在try块中包装了太多代码。 那这个呢？：

try:
    result = call_external_service()
except Exception:
    # unexpected exceptions from calling external service
    do_some_logging()

if result != expected:
    raise MyException()