[issue34003] csv.DictReader can return basic dict instead of OrderedDict

miss-islington added the comment: New changeset 663836e1179ea79eac12e55670af7e89a531a060 by Miss Islington (bot) in branch '3.8': [3.8] bpo-34003: Re-add versionchanged entry in csv docs (GH-20657) (GH-20771) https://github.com/python/cpython/commit/663836e1179ea79eac12e55670af7e89a531a060

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

miss-islington added the comment: New changeset 73b728a779aa7d6d8f088c4b21447bba4bf3a351 by Miss Islington (bot) in branch '3.9': [3.9] bpo-34003: Re-add versionchanged entry in csv docs (GH-20657) (GH-20770) https://github.com/python/cpython/commit/73b728a779aa7d6d8f088c4b21447bba4bf3a351

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by miss-islington : -- pull_requests: +19969 pull_request: https://github.com/python/cpython/pull/20771 ___ Python tracker ___

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by miss-islington : -- pull_requests: +19968 pull_request: https://github.com/python/cpython/pull/20770 ___ Python tracker ___

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

miss-islington added the comment: New changeset 7aed0524d4129766a6032326949ef7f91f6f6dfc by Éric Araujo in branch 'master': bpo-34003: Re-add versionchanged entry in csv docs (GH-20657) https://github.com/python/cpython/commit/7aed0524d4129766a6032326949ef7f91f6f6dfc -- nosy:

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by Éric Araujo : -- nosy: +eric.araujo nosy_count: 3.0 -> 4.0 pull_requests: +19876 pull_request: https://github.com/python/cpython/pull/20657 ___ Python tracker ___

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by Raymond Hettinger : -- resolution: -> not a bug stage: patch review -> resolved status: open -> closed ___ Python tracker ___

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by Raymond Hettinger : -- resolution: not a bug -> fixed ___ Python tracker ___ ___ Python-bugs-list mailing list

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Raymond Hettinger added the comment: New changeset 9f3f0931cfc58498086d287226650599a97412bb by Raymond Hettinger (Michael Selik) in branch 'master': bpo-34003: Use dict instead of OrderedDict in csv.DictReader (GH-8014)

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Raymond Hettinger added the comment: This might need a deprecation before switching but it would be useful. The DictReader can produced huge numbers of instances that would benefit from the smaller size. -- nosy: +rhettinger ___ Python tracker

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Michael Selik added the comment: I searched for previously submitted issues, but somehow didn't spot #32339. I'll do some searching for whether anyone uses ``move_to_end`` on DictReader rows and respond to the mailing list with a report. -- ___

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Eric V. Smith added the comment: The dict and OrderedDict APIs are slightly different, although I'm not sure anyone cares. See #32339. In that PR https://github.com/python/cpython/pull/4904, Guido said to not make this change. See also the python-dev discussion at

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by Michael Selik : -- components: +Library (Lib) ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by Michael Selik : -- type: -> performance ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe:

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Michael Selik added the comment: Pull request. https://github.com/python/cpython/pull/8014 -- ___ Python tracker ___ ___

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

Change by Michael Selik : -- keywords: +patch pull_requests: +7622 stage: -> patch review ___ Python tracker ___ ___

[issue34003] csv.DictReader can return basic dict instead of OrderedDict

New submission from Michael Selik : Since dicts are now keeping insertion order as of 3.7, we can switch to the more efficient construction of dict rather than OrderedDict for each row in the CSV file. -- messages: 320734 nosy: selik priority: normal severity: normal status: open