pantsbuild/pex v2.0.0

pex 2.0.0

on GitHub

2.0.0

Pex 2.0.0 is cut on the advent of a large, mostly internal change for typical
use cases: it now uses vendored pip to perform resolves and wheel builds. This
fixes a large number of compatibility and correctness bugs as well as gaining
feature support from pip including handling manylinux2010 and manylinux2014 as
well as VCS requirements and support for PEP-517 & PEP-518 builds.

API changes to be wary of:

• The egg distribution format is no longer supported.
• The deprecated --interpreter-cache-dir CLI option was removed.
• The --cache-ttl CLI option and cache_ttl resolver API argument were
  removed.
• The resolver API replaced fetchers with a list of indexes and a list
  of find_links repos.
• The resolver API removed (http) context which is now automatically
  handled.
• The resolver API removed precedence which is now pip default precedence:
  wheels when available and not ruled out via the --no-wheel CLI option or
  use_wheel=False API argument.
• The --platform CLI option and platform resolver API argument now must
  be full platform strings that include platform, implementation, version and
  abi; e.g.: --platform=macosx-10.13-x86_64-cp-36-m.
• The --manylinux CLI option and use_manylinux resolver API argument
  were removed. Instead, to resolve manylinux wheels for a foreign platform,
  specify the manylinux platform to target with an explicit --platform CLI
  flag or platform resolver API argument; e.g.:
  --platform=manylinux2010-x86_64-cp-36-m.

In addition, Pex 2.0.0 now builds reproduceable pexes by default; ie:

• Python modules embedded in the pex are not pre-compiled (pass --compile if
  you want this).
• The timestamps for Pex file zip entries default to midnight on
  January 1, 1980 (pass --use-system-time to change this).

This finishes off the effort tracked by #716.

Changes in this release:

• Pex defaults to reproduceable builds. (#791)
• Use pip for resolving and building distributions. (#788)
• Bias selecting the current interpreter. (#783)