[THRIFT-5537] Drop support for end-of-life python versions (including python 2)

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.16.0
• Component/s: Python - Compiler, Python - Library
• Assignee: Liu Jiayu
• Reporter: Yuxuan Wang
• Created: 07/Mar/22 18:41
• Updated: 02/May/23 01:45

Description

Based on the discussion in the maillist, we decided to drop support for end-of-life python versions. At the time of writing (ref: https://devguide.python.org/devcycle/#end-of-life-branches), this includes python 2, and python 3 < 3.7. Create this ticket to track the work, which includes (but probably not limited to):

1. Drop support for python2.
2. If we have any code to support older python version that's already end-of-line (for example, to support IntEnum before python 3.4), we can drop those special handling and only support the new version now.
3. Modify CI to only run supported Python versions, and modify documentation to reflect the supported python versions accordingly.

Issue Links

• blocks: THRIFT-5574 add ubuntu focal build in CI
• links to: GitHub PR 2588
• links to: GitHub Pull Request #2588