Message 336639 - Python tracker

Message336639

Author	eric.smith
Recipients	brandtbucher, eric.smith, mark.dickinson, serhiy.storchaka
Date	2019-02-26.10:24:03
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1551176643.46.0.663210669549.issue36117@roundup.psfhosted.org>
In-reply-to

Content
-1. We don't want to have objects that are orderable depending on their values. I can't think of anywhere else we do this. It would be very easy to have a complex == 42+0.0000001j, after some calculation. This near-zero imaginary part would prevent it from being orderable, while if a similar calculation produced exactly 42+0j, then that instance would be orderable. An application relying on this would be a nightmare to write comprehensive tests for. Whether something is orderable or not should depend solely on its type, not its value.

Content

-1. We don't want to have objects that are orderable depending on their values. I can't think of anywhere else we do this.

It would be very easy to have a complex == 42+0.0000001j, after some calculation. This near-zero imaginary part would prevent it from being orderable, while if a similar calculation produced exactly 42+0j, then that instance would be orderable. An application relying on this would be a nightmare to write comprehensive tests for.

Whether something is orderable or not should depend solely on its type, not its value.

History
Date	User	Action	Args
2019-02-26 10:24:03	eric.smith	set	recipients: + eric.smith, mark.dickinson, serhiy.storchaka, brandtbucher
2019-02-26 10:24:03	eric.smith	set	messageid: <1551176643.46.0.663210669549.issue36117@roundup.psfhosted.org>
2019-02-26 10:24:03	eric.smith	link	issue36117 messages
2019-02-26 10:24:03	eric.smith	create