[Python-Dev] Why a merge for 3.8.0a1?

[Łukasz Langa]

> On 4 Feb 2019, at 11:58, Stephane Wirtel <stephane at wirtel.be> wrote:
> 
> Hi all,
> 
> After a git pull, I have seen there is a merge for v3.8.0a1 by Łukasz
> Langa, why? I think the code should keep a linear commit and in this
> case, it's against the "commit&squash" of CPython and Github :/
> 
> Thank you for your response.

Tagging a release is different from a regular PR in the sense that you want the commit hash that you tagged as a given version to *remain the same*. In the mean time, other developers can (and will!) merge pull requests. If you were to rebase *the release tag* over their changes, the commit hash wouldn't match anymore. If you were to rebase *their changes* over your release tag, you'd have to force-push to update their changes.

This is described in PEP 101.

- Ł
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