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Antoine Pitrou authored and Benjamin Kietzman committed 3360989e04e
ARROW-8315: [Python] Fix dataset tests on Python 3.5 Do not rely on well-defined dict ordering. Closes #6814 from pitrou/ARROW-8315-dataset-tests-py35 Authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: Benjamin Kietzman <bengilgit@gmail.com>