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Re: Python 3.5 EOL; when can require 3.6?
From: |
Thomas Huth |
Subject: |
Re: Python 3.5 EOL; when can require 3.6? |
Date: |
Thu, 17 Sep 2020 17:41:34 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 |
On 17/09/2020 17.39, Daniel P. Berrangé wrote:
> On Thu, Sep 17, 2020 at 05:24:15PM +0200, Thomas Huth wrote:
>> On 17/09/2020 16.55, Daniel P. Berrangé wrote:
>>> On Thu, Sep 17, 2020 at 04:10:55PM +0200, Thomas Huth wrote:
>>>> On 16/09/2020 16.00, Thomas Huth wrote:
>>>>> On 16/09/2020 14.30, Peter Maydell wrote:
>>>>>> On Wed, 16 Sep 2020 at 08:43, Markus Armbruster <armbru@redhat.com>
>>>>>> wrote:
>>>>>>> We require Python 3.5. It will reach its "end of life" at the end of
>>>>>>> September 2020[*]. Any reason not to require 3.6 for 5.2? qemu-iotests
>>>>>>> already does for its Python parts.
>>>>> [...]
>>>>>> The default should be
>>>>>> "leave the version dependency where it is", not "bump the version
>>>>>> dependency as soon as we can".
>>>>>
>>>>> OTOH, if none of our supported build systems uses python 3.5 by default
>>>>> anymore, it also will not get tested anymore, so bugs might creep in,
>>>>> which will of course end up in a bad experience for the users, too, that
>>>>> still try to build with such an old version. So limiting the version to
>>>>> the level that we also test is IMHO very reasonable.
>>>>>
>>>>> Let's have a look at the (older) systems that we support and the python
>>>>> versions according to repology.org:
>>>>>
>>>>> - RHEL7 / CentOS 7 : 3.6.8
>>>>> - Ubuntu 18.04 (Bionic) : >= 3.6.5
>>>>> - openSUSE Leap 15.0 : >= 3.6.5
>>>>> - OpenBSD Ports : >= 3.7.9
>>>>> - FreeBSD Ports : >= 3.5.10 - but there is also 3.6 or newer
>>>>> - Homebrew : >= 3.7.9
>>>>>
>>>>> ... so I think it should be fine to retire 3.5 nowadays.
>>>>
>>>> Sorry, I forgot to check Debian. If I got that right, Debian 9 still
>>>> uses Python 3.5 by default. So I guess that means we can not deprecate
>>>> Python 3.5 yet?
>>>
>>> FWIW, Debian 9 EOL was July this year, if you only count the regular
>>> lifetime, not the LTS.
>>
>> Do we support Debian LTS? ... If not, we should maybe add a proper
>> remark about that to our support policy...?
>
> I didn't define Debian situation very well in the support policy
> because I didn't realize it had separate normal and LTS EOL
> dates. I had originally thought it was LTS only.
>
> In libvirt we have since clarified the language I originally
> wrote (and then copied to QEMU), to remove the LTS distinction.
> Instead libvirt now says:
>
> "The project aims to support the most recent major version at all
> times. Support for the previous major version will be dropped 2
> years after the new major version is released or when the vendor
> itself drops support, whichever comes first. In this context,
> third-party efforts to extend the lifetime of a distro are not
> considered, even when they are endorsed by the vendor (eg. Debian
> LTS)."
>
> I'd suggest we copy this updated terminolgy into QEMU as it simplifies
> the current language used.
Sounds good, could you (or Markus) please provide a patch?
Thanks,
Thomas
- Re: Python 3.5 EOL; when can require 3.6?, (continued)
- Re: Python 3.5 EOL; when can require 3.6?, Daniel P . Berrangé, 2020/09/16
- Re: Python 3.5 EOL; when can require 3.6?, Peter Maydell, 2020/09/16
- Re: Python 3.5 EOL; when can require 3.6?, Markus Armbruster, 2020/09/16
- Re: Python 3.5 EOL; when can require 3.6?, Thomas Huth, 2020/09/16
- Re: Python 3.5 EOL; when can require 3.6?, Daniel P . Berrangé, 2020/09/16
- Re: Python 3.5 EOL; when can require 3.6?, John Snow, 2020/09/16
- Re: Python 3.5 EOL; when can require 3.6?, Thomas Huth, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Daniel P . Berrangé, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Thomas Huth, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Daniel P . Berrangé, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?,
Thomas Huth <=
- Re: Python 3.5 EOL; when can require 3.6?, Markus Armbruster, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Thomas Huth, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Warner Losh, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Andrea Bolognani, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Daniel P . Berrangé, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Andrea Bolognani, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Eduardo Habkost, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Daniel P . Berrangé, 2020/09/17
- Re: Python 3.5 EOL; when can require 3.6?, Eduardo Habkost, 2020/09/17