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https://issues.apache.org/jira/browse/AVRO-3066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17406505#comment-17406505
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Michael A. Smith commented on AVRO-3066:
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I think we should also consider adding `dateutil` as an optional dependency,
and only supporting `duration` logicaltype if `dateutil` is installed. If it's
not installed, we can still read documents with that type, but they would fall
back to the `fixed size=12` type.
> Add support for duration logical type to Python implementation
> --------------------------------------------------------------
>
> Key: AVRO-3066
> URL: https://issues.apache.org/jira/browse/AVRO-3066
> Project: Apache Avro
> Issue Type: New Feature
> Components: python
> Reporter: Spencer Nelson
> Priority: Minor
>
> The duration logical type was added back in \AVRO-739, but it still isn't in
> the Python implementation.
> Because durations encode an integer number of months in addition to days and
> seconds, the standard library's {{datetime.timedelta}} is insufficient for
> representing an Avro duration.
> One option is to return a tuple - the triplet of months, days, and seconds.
> Another option is to use a
> [relativedelta|https://dateutil.readthedocs.io/en/stable/relativedelta.html]
> from the well-known, but third-party, {{dateutil}} library. I would lean
> towards the latter, but I understand the downsides of adding a dependency.
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