[python-committers] [Core-mentorship] Regarding reviewing test cases written for tabnanny module

[Terry Reedy]

On 4/10/2017 11:55 PM, Martin Panter wrote:
> On 11 April 2017 at 13:13, Mariatta Wijaya <mariatta.wijaya at gmail.com> wrote:
>> "View Changes" doesn't work when commits in PR were squashed, which seems to
>> be the case in https://github.com/python/cpython/pull/851
>>
>> I wonder if there is a way to unsquash the commits? Will it help with
>> reviewing this PR?

> In this particular pull request, I think the submitter has rebased
> their commit, and force-pushed it. These days, I notice Git Hub seems
> to forget old commits pretty soon after you force-push the branch they
> are on. I don't think you can "unsquash" them retrospectively; you
> would need a copy of the old commits saved somewhere.
>
> Other times people add revised commits on top of their old commits,
> which would have been easier for me in this situation, but I suspect
> that makes it harder for the person pushing the final change if they
> have to squash it into a single commit. (I noticed the eventual commit
> message is often messy, redundant, automatically generated, etc.)

I was under the impression that the green [commit] button would do the 
squashing.   Or at least that it could.

tjr