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PIP-155: Drop support for Python2 #15185
Description
Motivation
Python 2.x has been deprecated for many years now and it was officially end-of-lifed 2.5 years ago (https://www.python.org/doc/sunset-python-2/).
We have well reached the point by which we need to drop Python 2.7 compatibility for Pulsar client and for Pulsar functions.
Based on Python end-of-life policies, there are 4 versions of Python that are currently supported: 3.7, 3.8, 3.9 and 3.10. https://endoflife.date/python
That gives a 5 years support schedule from release to EoL.
Goal
Support only the last 4 Python releases Pulsar client and for Pulsar functions, currently 3.7, 3.8, 3.9 and 3.10. Once 3.7 reaches end-of-life, it will be dropped by Pulsar too.
This policy will be also applied to the Pulsar patch releases which will stop providing Python wheel files for the deprecated versions.
API Changes
No changes at this time, though Pulsar Python client library will be now free to use Python3 specific syntaxes and libraries.
Changes
- Switch the CI build to run Python client lib tests with Python3
- Switch integration tests to use Python3
- Stop building and distributing wheel files for Python 2.7
Activity
zbentley commentedon Apr 15, 2022
Thoughts on minimum py3 version? 3.6+ and 3.7+ are common choices in the python ecosystem.
merlimat commentedon Apr 15, 2022
Do you know where to find a list of feature/syntax that were changed in 3.6 or 3.7?
As in: what could we be free to use if we didn't have to support Py 3.5 and 3.6?
zbentley commentedon Apr 15, 2022
Most details are here: https://docs.python.org/3/whatsnew/index.html
merlimat commentedon Apr 16, 2022
This is actually helpful: https://endoflife.date/python
3.6 has already reached end of life and here will be no more security updates. It does indeed make sense for us to stop supporting it too.
github-actions commentedon May 21, 2022
The issue had no activity for 30 days, mark with Stale label.
github-actions commentedon Jun 20, 2022
The issue had no activity for 30 days, mark with Stale label.
dimaqq commentedon Sep 9, 2022
Poke
tisonkun commentedon Dec 7, 2022
Closed as resolved. I don't find outstanding dependencies.