[ARROW-3045] [Python] Remove nullcheck from ipc Message and MessageReader

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.11.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/19405
• Assignee: Krisztian Szucs
• Reporter: Krisztian Szucs
• Created: 11/Aug/18 11:07
• Updated: 11/Jan/23 07:24
• Resolved: 14/Aug/18 04:11

Description

Nullcheck is required to prevent segfaults if the extension classes are not (or partially) constructed.
Explicitly disallowing Message() and MessageReader() construction makes nullchecks unnecessary.

See https://github.com/apache/arrow/commit/44bfd0d5a7f4a68b3ab7ce72cd2b68f62a6fec5c for previous work.

Issue Links

• links to: GitHub Pull Request #2425