Message 59675 - Python tracker

➜

This issue tracker has been migrated to GitHub , and is currently read-only.
For more information, see the GitHub FAQs in the Python's Developer Guide.

In-reply-to
Author	dmaurer
Recipients	dmaurer
Date	2008年01月10日.17:39:23
SpamBayes Score	0.018971559
Marked as misclassified	No
Message-id	<1199986772.67.0.313630472197.issue1785@psf.upfronthosting.co.za>

Content
The inspect functions "getmembers(cls)" and "classify_class_attrs(cls)" require that for a class cls each name in "dir(cls)" can be retrieved by "getattr(cls, name)". While this holds for usual class attributes, it may well fail for descriptors (descriptors set by 'zope.interface' are a real world example for this). Attached it as small script that demonstrates the problem. The bug affects 'pydoc' and the built in 'help' (which is in fact 'pydoc.help'). While 'pydoc' and 'help' do not break completely, they can not present meaningful information for classes with some descriptors

Content

The inspect functions "getmembers(cls)" and "classify_class_attrs(cls)"
require that for a class *cls* each name in "dir(cls)" can be retrieved
by "getattr(cls, name)". While this holds for usual class attributes, it
may well fail for descriptors (descriptors set by 'zope.interface' are a
real world example for this). Attached it as small script that
demonstrates the problem.
The bug affects 'pydoc' and the built in 'help' (which is in fact
'pydoc.help'). While 'pydoc' and 'help' do not break completely, they
can not present meaningful information for classes with some descriptors

History
Date	User	Action	Args
2008年01月10日 17:39:33	dmaurer	set	spambayes_score: 0.0189716 -> 0.018971559 recipients: + dmaurer
2008年01月10日 17:39:32	dmaurer	set	spambayes_score: 0.0189716 -> 0.0189716 messageid: <1199986772.67.0.313630472197.issue1785@psf.upfronthosting.co.za>
2008年01月10日 17:39:24	dmaurer	link	issue1785 messages
2008年01月10日 17:39:23	dmaurer	create

homepage