[Python-Dev] Request for CPython 3.5.3 release

Matthias Klose doko at ubuntu.com
Mon Jul 4 11:26:17 EDT 2016

On 03.07.2016 06:09, Nick Coghlan wrote:
> On 2 July 2016 at 16:17, Ludovic Gasc <gmludo at gmail.com> wrote:
>> Hi everybody,
>> I fully understand that AsyncIO is a drop in the ocean of CPython, you're
>> working to prepare the entire 3.5.3 release for December, not yet ready.
>> However, you might create a release with only this AsyncIO fix ?
> That would be more work than just doing a 3.5.3 release, though - the
> problem isn't with the version number bump, it's with asking the
> release team to do additional work without clearly explaining the
> rationale for the request (more on that below). While some parts of
> the release process are automated, there's still a lot of steps to run
> through by a number of different people:
> https://www.python.org/dev/peps/pep-0101/.
> The first key question to answer in this kind of situation is: "Is
> there code that will run correctly on 3.5.1 that will now fail on
> 3.5.2?" (i.e. it's a regression introduced by the asyncio and
> coroutine changes in the point release rather than something that was
> already broken in 3.5.0 and 3.5.1).

I don't know about 3.5.1 exactly, but at least things worked on the branch early
April, which were broken by 3.5.2 final.  I was trying to prepare for an update
to 3.5.2 for Ubuntu 16.04 LTS, and found some regressions, documented at
https://launchpad.net/bugs/1586673 (comment #6).

It looks like that at least the packages nuitka, python-websockets and urwid
fail to build with the 3.5.2 release. Still need to investigate.

Unless I'm missing things, there is unfortunately no issue in the Python bug
tracker, and there is no patch for the 3.5 branch either.  My understanding is
that it's not yet decided what to do about the issue.


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