[Distutils] Announcement: Pip 10 is coming, and will move all internal APIs

xoviat xoviat at gmail.com
Fri Oct 20 19:02:22 EDT 2017

The short answer is that someone complained about the pip API not doing
what they wanted it to do, so we broke the API to make it clear to everyone
that the API is not something that should be depended on.

2017-10-20 17:53 GMT-05:00 Richard Jones <r1chardj0n3s at gmail.com>:

> Hiya Paul,
> There's a bunch of tooling out there using pip's internals to extending
> pip's functionality. Could you please provide a some reasoning as to why
> they're all going to be broken at pip 10, and possibly some guidance on how
> to get that functionality back?
> Cheers,
>      Richard
> On 21 October 2017 at 00:22, Paul Moore <p.f.moore at gmail.com> wrote:
>> We're in the process of starting to plan for a release of pip (the
>> long-awaited pip 10). We're likely still a month or two away from a
>> release, but now is the time for people to start ensuring that
>> everything works for them. One key change in the new version will be
>> that all of the internal APIs of pip will no longer be available, so
>> any code that currently calls functions in the "pip" namespace will
>> break. Calling pip's internal APIs has never been supported, and
>> always carried a risk of such breakage, so projects doing so should,
>> in theory, be prepared for such things. However, reality is not always
>> that simple, and we are aware that people will need time to deal with
>> the implications.
>> Just in case it's not clear, simply finding where the internal APIs
>> have moved to and calling them under the new names is *not* what
>> people should do. We can't stop people calling the internal APIs,
>> obviously, but the idea of this change is to give people the incentive
>> to find a supported approach, not just to annoy people who are doing
>> things we don't want them to ;-)
>> So please - if you're calling pip's internals in your code, take the
>> opportunity *now* to check out the in-development version of pip, and
>> ensure your project will still work when pip 10 is released.
>> And many thanks to anyone else who helps by testing out the new
>> version, as well :-)
>> Thanks,
>> Paul
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