[Python-Dev] PEP 409 and the stdlib (original) (raw)

Hrvoje Niksic hrvoje.niksic at avl.com
Tue May 21 11:28:33 CEST 2013

On 05/21/2013 10:36 AM, Serhiy Storchaka wrote:

The above exception was converted to the following exception: ...

That makes it clear that the conversion was explicit and (hopefully) intentional, and that the latter exception supersedes the former. How do you distinguish intentional and unintentional exceptions?

By the use of the "raise" keyword. Given the code:

try: x = d['key'] except KeyError: raise BusinessError(...)

...the explicit raising is a giveaway that the new exception was quite intentional.

Hrvoje

More information about the Python-Dev mailing list