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Pants

Oh, oof...pip-compile does not support the new pip resolver yet, and no one has started working on it. <https://github.com/jazzband/pip-tools/issues/1190>

That seems like a regression for Pants's UX and makes me think twice about using pip-compile for the lockfile project

Do folks agree we need to use the new resolver for 2.7's lockfile generation?

If so, our options are:
1. Contribute to pip-tools.
2. Teach Pex to generate a lockfile
3. Try Poetry

Note that `main` on pip-tools does not work w/ Py27, so this means that we could only have the new resolver when users are not using Py2

&gt; Do folks agree we need to use the new resolver for 2.7's lockfile generation?
I vote yes. A lot of the problems the past year were from pip's old algorithm, and the new resolver seems to work much better