Survey of requirementslib users and plan to drop pip-shims

[matteius]

Plan to remove pip-shims

I am taking a moment to announce a bigger change to requirementslib that would bring it to version 2.0.0 and drop pip-shims usage entirely. Here is the relevant PR: #334

Are you a consumer of requirementslib?

What I am trying to understand is who the big consumers of requirementslib are beyond the realms of pipenv? If you happen to see this discussion and are a consumer of requirementslib please take a moment to comment. The impact of the change to remove pip-shims is that not as wide of versions of pip will be supported going forward.

Notes from the news fragment:

requirementslib has converted off of pip-shims project which had grown into a complicated interface to using pip.
It was problematic because pip-shims could never foresee and accommodate future looking changes to internal interfaces of pip.
Also, pip-shims slowed down this library and required downstream tools such as pipenv to continue vendoring it despite having already dropped usages.
Due to the impact of this change, it requires a major version increase of requirementslib to 2.0.0
To utilize version 2.0.0 of requirementslib, ensure you have pip>=22.2 as this has not been fully tested to support earlier versions of pip
Breakage of the internal pip interface usage is possible with earlier versions.
Additionally, the interface on NamedRequierment renamed class method get_dependencies to dependencies and get_abstract_dependencies to abstract_dependencies in order to match interface with Line class and avoid naming collision with the utility methods they call.