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https://issues.apache.org/jira/browse/ARROW-3448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17660471#comment-17660471
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Rok Mihevc commented on ARROW-3448:
-----------------------------------
This issue has been migrated to [issue
#19770|https://github.com/apache/arrow/issues/19770] on GitHub. Please see the
[migration documentation|https://github.com/apache/arrow/issues/14542] for
further details.
> [Python] Pandas roundtrip doesn't preserve list of datetime objects
> -------------------------------------------------------------------
>
> Key: ARROW-3448
> URL: https://issues.apache.org/jira/browse/ARROW-3448
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Krisztian Szucs
> Priority: Major
> Labels: pull-request-available
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> Adding the following to the pandas_example.py::dataframe_with_lists functionn:
> {code:python}
> datetime_data = [
> [datetime(2015, 1, 5, 12, 0, 0), datetime(2020, 8, 22, 10, 5, 0)],
> [datetime(2024, 5, 5, 5, 49, 1), datetime(2015, 12, 24, 22, 10, 17)],
> [datetime(1996, 4, 30, 2, 38, 11)],
> None,
> [datetime(1987, 1, 27, 8, 21, 59)]
> ]
> type = pa.timestamp('s'|'ms'|'us'|'ns')
> {code}
> breaks the tests cases, because the roundtrip doesn't preserve the object
> type.
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