[ARROW-598] [Python] Add support for converting pyarrow.Buffer to a memoryview with zero copy

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.3.0
• Component/s: Python
• External issue URL: https://github.com/apache/arrow/issues/16230
• Assignee: Jeff Knupp
• Reporter: Wes McKinney
• Created: 03/Mar/17 15:13
• Updated: 11/Jan/23 07:09
• Resolved: 14/Mar/17 14:59

Description

From reading the Python 3 C API this should be possible https://docs.python.org/3/c-api/memoryview.html – the memoryview will need to retain a reference to the Buffer so that memory is not prematurely garbage-collected

Issue Links

• blocks: ARROW-626 [Python] Enable pyarrow.BufferReader to read from any Python object implementing the buffer/memoryview protocol