[ARROW-2816] [Python] Add __iter__ method to NativeFile

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.10.0
• Component/s: Python
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/19194
• Assignee: Dimitri Vorona
• Reporter: Wes McKinney
• Created: 09/Jul/18 20:34
• Updated: 11/Jan/23 07:23
• Resolved: 23/Jul/18 10:23

Description

Copied from https://github.com/apache/arrow/issues/2114

Currently, NativeFile does not pass the check of pandas for being a "file-like" object because it does not have __iter__ method. It can be easily added using code from native python io module as a reference. Another way would be to subclass io.IOBase.

The exact code of pandas check can be found here.

Code for __iter__ method and io.IOBase can be found here.

Issue Links

• links to: GitHub Pull Request #2253