[ARROW-9963] [Python] Recognize datetime.timezone.utc as UTC on conversion python->pyarrow

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25989
• Assignee: Joris Van den Bossche
• Reporter: Joris Van den Bossche
• Created: 10/Sep/20 13:55
• Updated: 11/Jan/23 08:10
• Resolved: 21/Oct/20 14:56

Description

Related to ARROW-5248, but specifically for the stdlib datetime.timezone.utc, I think it would be nice to "recognize" this as UTC. Currently it is converted to "+00:00", while for pytz this is not the case:

from datetime import datetime, timezone
import pytz

print(pa.array([datetime.now(timezone.utc)]).type)
print(pa.array([datetime.now(pytz.utc)]).type)

gives

timestamp[us, tz=+00:00]
timestamp[us, tz=UTC]

Issue Links

• is related to: ARROW-5248 [Python] support zoneinfo / dateutil timezones
• links to: GitHub Pull Request #8489