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Created on 2017-06-17 12:37 by serhiy.storchaka, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Messages (2) | |||
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| msg296237 - (view) | Author: Serhiy Storchaka (serhiy.storchaka) *  |
Date: 2017-06-17 12:37 | |
Iterating ChainMap emits keys in mixed order even if all underlying mappings are ordered dicts (OrderedDict). Would be nice to keep the order more predictable. This would solve issue30664. See also issue30689. |
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| msg296258 - (view) | Author: Raymond Hettinger (rhettinger) * |
Date: 2017-06-18 04:20 | |
Until regular dicts guarantee order, I don't want to go down this path for ChainMap which currently makes no guarantees about preserving and passing through properties of the underlying mappings. The current implementation is short, fast, and reliable. I don't want to trade any of those for a feature that we don't even guarantee for regular dicts. For http://bugs.python.org/issue30664, I recommend going with Eric's suggestion in http://bugs.python.org/issue30664#msg296005. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:47 | admin | set | github: 74875 |
| 2017-06-18 04:20:10 | rhettinger | set | status: open -> closed resolution: not a bug messages: + msg296258 stage: resolved |
| 2017-06-17 12:37:08 | serhiy.storchaka | create | |