Pex

artifacts via re-directs, the resulting lock file would contain the
final re-directed URL instead of the originating index artifact URL.
This could lead to issues when the indexes re-direction scheme changed
or else if authentication parameters in the original index URL were
stripped in the Pip logs.

* Fix artifact URL recording for `pip>=23.3`. (2421)

__pex__` import hook.

* Eliminate warnings for default use. (2188)
* Cleanup sys.path after __pex__ is imported. (2189)

can't. To turn the need to fall back to older Pip from a warning into a
hard error you can also specify `--no-allow-pip-version-fallback`.

The `pex3 lock update` command now gains the ability to update just the
index and find links repos the lock's artifacts originate from by using
a combination of `--no-pypi`, `--index` & `--find-links` along with
`--pin` to ensure the project versions stay pinned as they are in the
lockfile and just the repos they are downloaded from is altered. Consult
the CLI `--help` for `--fingerprint-mismatch {ignore,warn,error}` to
gain more control over repo migration behavior.

There are several bug fixes as well dealing with somewhat esoteric
corner cases involving changing a PEX `--layout` from one form to
another and building artifacts using certain interpreters on macOS 11.0
(aka: 10.16).

* Add support for Pip 22.2.2. (1893)
* Make lock update sensitive to artifacts. (1887)
* Ensure locally built wheel is consumable locally. (1886)
* Ensure `--output` always overwrites destination. (1883)

This release fixes `pex3 cache prune` handling of cached Pips.
Previously, performing a `pex3 cache prune` would bump the last access
time of all un-pruned cached Pips artificially. If you ran
`pex3 cache prune` in a daily or weekly cron job, this would mean Pips
would never be pruned.

* Fix `pex3 cache prune` handling of cached Pips. (2589)

This release adds `pex3 cache prune` as a likely more useful Pex cache
management command than the existing `pex3 cache purge`. By default
`pex3 cache prune` prunes any cached items not used for the last 2
weeks and is likely suitable for use as a daily cron job to keep Pex
cache sizes down. The default age of 2 weeks can be overridden by
specifying `--older-than "1 week"` or `--last-access-before 14/3/2024`,
etc. See `pex3 cache prune --help` for more details.

* Support `pex3 cache prune --older-than ...`. (2586)

This release adds support for drawing requirements from
[PEP-735][PEP-735] dependency groups when creating PEXes or lock files.
Groups are requested via `--group <name><project dir>` or just
`--group <name>` if the project directory is the current working
directory.

* Add support for PEP-735 dependency groups. (2584)

[PEP-735]: https://peps.python.org/pep-0735/