[AVRO-3066] Add support for duration logical type to Python implementation

• Type: New Feature
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: python
• Assignee: Unassigned
• Reporter: Spencer Nelson
• Created: 05/Mar/21 03:29
• Updated: 30/Aug/21 02:44

Description

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 from the well-known, but third-party, dateutil library. I would lean towards the latter, but I understand the downsides of adding a dependency.