[ARROW-15870] [Python] Start to raise deprecation warnings when using use_legacy_dataset=True in parquet.py

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 8.0.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/20143
• Assignee: Joris Van den Bossche
• Reporter: Joris Van den Bossche
• Created: 08/Mar/22 14:02
• Updated: 11/Jan/23 11:40
• Resolved: 15/Mar/22 16:59

Description

Currently, users can still specify use_legacy_dataset=True explicitly to get the old implementation/behaviour. But if we want to remove that implementation at some point (ARROW-15868), we should start deprecating that option, to futher nudge people to the new implementation.

Issue Links

• links to: GitHub Pull Request #12584