+1 On Fri, May 31, 2019 at 17:58 Holden Karau <hol...@pigscanfly.ca> wrote:
> +1 > > On Fri, May 31, 2019 at 5:41 PM Bryan Cutler <cutl...@gmail.com> wrote: > >> +1 and the draft sounds good >> >> On Thu, May 30, 2019, 11:32 AM Xiangrui Meng <men...@gmail.com> wrote: >> >>> Here is the draft announcement: >>> >>> === >>> Plan for dropping Python 2 support >>> >>> As many of you already knew, Python core development team and many >>> utilized Python packages like Pandas and NumPy will drop Python 2 support >>> in or before 2020/01/01. Apache Spark has supported both Python 2 and 3 >>> since Spark 1.4 release in 2015. However, maintaining Python 2/3 >>> compatibility is an increasing burden and it essentially limits the use of >>> Python 3 features in Spark. Given the end of life (EOL) of Python 2 is >>> coming, we plan to eventually drop Python 2 support as well. The current >>> plan is as follows: >>> >>> * In the next major release in 2019, we will deprecate Python 2 support. >>> PySpark users will see a deprecation warning if Python 2 is used. We will >>> publish a migration guide for PySpark users to migrate to Python 3. >>> * We will drop Python 2 support in a future release in 2020, after >>> Python 2 EOL on 2020/01/01. PySpark users will see an error if Python 2 is >>> used. >>> * For releases that support Python 2, e.g., Spark 2.4, their patch >>> releases will continue supporting Python 2. However, after Python 2 EOL, we >>> might not take patches that are specific to Python 2. >>> === >>> >>> Sean helped make a pass. If it looks good, I'm going to upload it to >>> Spark website and announce it here. Let me know if you think we should do a >>> VOTE instead. >>> >>> On Thu, May 30, 2019 at 9:21 AM Xiangrui Meng <men...@gmail.com> wrote: >>> >>>> I created https://issues.apache.org/jira/browse/SPARK-27884 to track >>>> the work. >>>> >>>> On Thu, May 30, 2019 at 2:18 AM Felix Cheung <felixcheun...@hotmail.com> >>>> wrote: >>>> >>>>> We don’t usually reference a future release on website >>>>> >>>>> > Spark website and state that Python 2 is deprecated in Spark 3.0 >>>>> >>>>> I suspect people will then ask when is Spark 3.0 coming out then. >>>>> Might need to provide some clarity on that. >>>>> >>>> >>>> We can say the "next major release in 2019" instead of Spark 3.0. Spark >>>> 3.0 timeline certainly requires a new thread to discuss. >>>> >>>> >>>>> >>>>> >>>>> ------------------------------ >>>>> *From:* Reynold Xin <r...@databricks.com> >>>>> *Sent:* Thursday, May 30, 2019 12:59:14 AM >>>>> *To:* shane knapp >>>>> *Cc:* Erik Erlandson; Mark Hamstra; Matei Zaharia; Sean Owen; Wenchen >>>>> Fen; Xiangrui Meng; dev; user >>>>> *Subject:* Re: Should python-2 be supported in Spark 3.0? >>>>> >>>>> +1 on Xiangrui’s plan. >>>>> >>>>> On Thu, May 30, 2019 at 7:55 AM shane knapp <skn...@berkeley.edu> >>>>> wrote: >>>>> >>>>>> I don't have a good sense of the overhead of continuing to support >>>>>>> Python 2; is it large enough to consider dropping it in Spark 3.0? >>>>>>> >>>>>>> from the build/test side, it will actually be pretty easy to >>>>>> continue support for python2.7 for spark 2.x as the feature sets won't be >>>>>> expanding. >>>>>> >>>>> >>>>>> that being said, i will be cracking a bottle of champagne when i can >>>>>> delete all of the ansible and anaconda configs for python2.x. :) >>>>>> >>>>> >>>> On the development side, in a future release that drops Python 2 >>>> support we can remove code that maintains python 2/3 compatibility and >>>> start using python 3 only features, which is also quite exciting. >>>> >>>> >>>>> >>>>>> shane >>>>>> -- >>>>>> Shane Knapp >>>>>> UC Berkeley EECS Research / RISELab Staff Technical Lead >>>>>> https://rise.cs.berkeley.edu >>>>>> >>>>> > > -- > Twitter: https://twitter.com/holdenkarau > Books (Learning Spark, High Performance Spark, etc.): > https://amzn.to/2MaRAG9 <https://amzn.to/2MaRAG9> > YouTube Live Streams: https://www.youtube.com/user/holdenkarau >
