Message 105790 - Python tracker

Message105790

Author	Paul.Davis
Recipients	Paul.Davis, docs@python
Date	2010-05-15.04:10:56
SpamBayes Score	5.3367155e-05
Marked as misclassified	No
Message-id	<1273896658.97.0.575873001655.issue8722@psf.upfronthosting.co.za>
In-reply-to

Content
The docs for __getattr__ in the object model section could be more specific on the behavior when a @property raises an AttributeError and there is a custom __getattr__ defined. Specifically, it wasn't exactly clear that __getattr__ would be invoked after a @property was found and evaluated. The attached script demonstrates the issue on OS X 10.6, Python 2.6.1 I'm thinking something along the lines of: If the attribute search encounters an AttributeError (perhaps due to a @property raising the error) the search is considered a failure and __getattr__ is invoked.

Content

The docs for __getattr__ in the object model section could be more specific on the behavior when a @property raises an AttributeError and there is a custom __getattr__ defined. Specifically, it wasn't exactly clear that __getattr__ would be invoked after a @property was found and evaluated.

The attached script demonstrates the issue on OS X 10.6, Python 2.6.1

I'm thinking something along the lines of:

If the attribute search encounters an AttributeError (perhaps due to a @property raising the error) the search is considered a failure and __getattr__ is invoked.

History
Date	User	Action	Args
2010-05-15 04:10:59	Paul.Davis	set	recipients: + Paul.Davis, docs@python
2010-05-15 04:10:58	Paul.Davis	set	messageid: <1273896658.97.0.575873001655.issue8722@psf.upfronthosting.co.za>
2010-05-15 04:10:57	Paul.Davis	link	issue8722 messages
2010-05-15 04:10:56	Paul.Davis	create