Message 340183 - Python tracker

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Author	methane
Recipients	eric.snow, methane, rhettinger, serhiy.storchaka, tim.peters
Date	2019-04-14.05:57:56
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1555221476.75.0.394641255026.issue31954@roundup.psfhosted.org>
In-reply-to

Content
There are some more aggressive ideas. When Eric created C version of OrderedDict, he intended to use it for PEP 468. Unlike pure Python implementation, PyDict_GetItem returns value, not node of linked list. But now, PEP 468 is implemented in regular dict. How about raising DeprecationWarning when OrderedDict is passed to PyDict_* APIs? LRU implementation of functools is much more efficient than OrderedDict. OrderedDict can be achieve same performance and efficiency when node of linked list is stored in underlaying dict.

There are some more aggressive ideas.

When Eric created C version of OrderedDict, he intended to use it
for PEP 468.  Unlike pure Python implementation, PyDict_GetItem
returns value, not node of linked list.

But now, PEP 468 is implemented in regular dict.
How about raising DeprecationWarning when OrderedDict is passed to
PyDict_* APIs?

LRU implementation of functools is much more efficient than OrderedDict.
OrderedDict can be achieve same performance and efficiency when
node of linked list is stored in underlaying dict.

History
Date	User	Action	Args
2019-04-14 05:57:56	methane	set	recipients: + methane, tim.peters, rhettinger, eric.snow, serhiy.storchaka
2019-04-14 05:57:56	methane	set	messageid: <1555221476.75.0.394641255026.issue31954@roundup.psfhosted.org>
2019-04-14 05:57:56	methane	link	issue31954 messages
2019-04-14 05:57:56	methane	create