[ARROW-5179] [Python] Return plain dicts, not OrderedDict, on Python 3.7+

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.13.0
• Fix Version/s: 0.14.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/21656
• Assignee: Unassigned
• Reporter: Antoine Pitrou
• Created: 17/Apr/19 16:21
• Updated: 11/Jan/23 07:38
• Resolved: 23/Apr/19 16:02

Description

On Python 3.7 and onwards, builtin dict is guaranteed to be insertion-ordered. So there's no need to return a OrderedDict anymore.

(builtin dict is slightly smaller, faster, and can have a nicer repr output)

Issue Links

• links to: GitHub Pull Request #4190