+1 from my side too! Bolke de Bruin <bdbr...@gmail.com> schrieb am Di., 12. Nov. 2019, 22:39:
> I guess thats a +1 then? :-) > > Op di 12 nov. 2019 22:36 schreef Jarek Potiuk <jarek.pot...@polidea.com>: > > > I'd love to get rid of python 3.5 > > > > We discussed it a few times but as of recently the main problem was that > > 3.5 was default python version of Stretch debian LTS (9). However we are > > soon - this week likely - switching to Buster debian LTS as base image > for > > our CI tests (and production image that follows) (PR > > https://issues.apache.org/jira/browse/AIRFLOW-5842). Buster comes with > 3.7 > > by default and is already 4 months old. > > > > I think we should make an educated decision, based on what we can gain by > > moving to 3.6. > > > > The PYPI stats show only downloads not current number of installations - > ( > > https://pypistats.org/packages/apache-airflow), but I think they are > kind > > of indicative numbers for potential users of 2.0. > > They show steady decline of 3.5 downloads - currently at below 5%. Python > > 3.6 is by far the most popular (around 40% of downloads). > > > > There are few things we could benefit from by switching to 3.6 - this is > my > > (subjective) selection of the ones that matter for Airflow: > > > > - Formatted string literals : > > > > > https://docs.python.org/3/whatsnew/3.6.html#pep-498-formatted-string-literals > > (my > > favourite one) > > - Type annotations for variables : > > > > > https://docs.python.org/3/whatsnew/3.6.html#pep-526-syntax-for-variable-annotations > > - > > now especially that we use MyPy more and more this one is the only > > place we > > have to leave ugly comments rather than annotations. > > - Path-like types: > > > > > https://docs.python.org/3/whatsnew/3.6.html#pep-519-adding-a-file-system-path-protocol > > - > > nicer handling of file access > > - Local Time disambiguation: > > > > > https://docs.python.org/3/whatsnew/3.6.html#pep-495-local-time-disambiguation > > - > > this had already caused problems in the past (I fixed a problem where > > pendulum and datetime objects were mixed and caused wrong behaviour on > > 3.5) > > - Json loads supports binary format - > > https://docs.python.org/3/whatsnew/3.6.html#json - this has already > > bitten us as well. there was code working fine in py2.7 and 3.6 but > not > > working with 3.5(!). > > > > Last but not least - it might free some resources on Travis (I hope > GitLab > > fix will be out in 10 days or so and we will be able to start testing > > migration to it). > > > > J.. > > > > On Tue, Nov 12, 2019 at 10:00 PM Bolke de Bruin <bdbr...@gmail.com> > wrote: > > > > > Hi All, > > > > > > Can we drop python 3.5 support and switch to 3.6 as a minimum? > > > > > > Cheers > > > Bolke > > > > > > > > > -- > > > > Jarek Potiuk > > Polidea <https://www.polidea.com/> | Principal Software Engineer > > > > M: +48 660 796 129 <+48660796129> > > [image: Polidea] <https://www.polidea.com/> > > >
