excutils.py 文件源码

def __call__(self, ex):
        """Re-raise any exception value not being filtered out.

        If the exception was the last to be raised, it will be re-raised with
        its original traceback.
        """
        exc_type, exc_val, traceback = sys.exc_info()

        try:
            if not self._should_ignore_ex(ex):
                if exc_val is ex:
                    six.reraise(exc_type, exc_val, traceback)
                else:
                    raise ex
        finally:
            del exc_type, exc_val, traceback