Message 391210 - Python tracker

Message391210

Author	gvanrossum
Recipients	The Compiler, eric.smith, gvanrossum, kj, larry, levkivskyi
Date	2021-04-16.15:07:25
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1618585645.59.0.116223318374.issue43463@roundup.psfhosted.org>
In-reply-to

Content
Hey Larry, it would seem that PEP 649 as currently specified would make it impossible to access annotations via the inspect module in cases where x.__annotations__ raises (because one of the annotations references an undefined variable). I really think that we need some way of accessing partial annotations. Even just leaving the failing key out of __annotations__ (but keeping other keys if their annotation works) would be better than failing to return an __annotations__ dict at all.

Content

Hey Larry, it would seem that PEP 649 as currently specified would make it impossible to access annotations via the inspect module in cases where x.__annotations__ raises (because one of the annotations references an undefined variable).

I really think that we need *some* way of accessing partial annotations. Even just leaving the failing key out of __annotations__ (but keeping other keys if their annotation works) would be better than failing to return an __annotations__ dict at all.

History
Date	User	Action	Args
2021-04-16 15:07:25	gvanrossum	set	recipients: + gvanrossum, larry, eric.smith, The Compiler, levkivskyi, kj
2021-04-16 15:07:25	gvanrossum	set	messageid: <1618585645.59.0.116223318374.issue43463@roundup.psfhosted.org>
2021-04-16 15:07:25	gvanrossum	link	issue43463 messages
2021-04-16 15:07:25	gvanrossum	create