[ARROW-6926] [Python] Support __sizeof__ protocol for Python objects

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.16.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/23248
• Assignee: Joris Van den Bossche
• Reporter: Matthew Rocklin
• Created: 17/Oct/19 21:34
• Updated: 11/Jan/23 07:50
• Resolved: 02/Dec/19 13:45

Description

It would be helpful if PyArrow objects implemented the `_sizeof_` protocol to give other libraries hints about how much data they have allocated. This helps systems like Dask, which have to make judgements about whether or not something is cheap to move or taking up a large amount of space.

Issue Links

• links to: GitHub Pull Request #5879