Sourced from pex's releases.

pex 2.1.20

---

2.1.20

This release improves interpreter discovery to prefer more recent patch versions, e.g. preferring Python 3.6.10 over 3.6.8.

We recently regained access to the docsite, and https://pex.readthedocs.io/en/latest/ is now up-to-date.

• Prefer more recent patch versions in interpreter discovery. (#1088)

• Fix --pex-python when it's the same as the current interpreter. (#1087)

• Fix dir_hash vs. bytecode compilation races. (#1080)

• Fix readthedocs doc generation. (#1081)

pex 2.1.19

---

2.1.19

This release adds the --python-path option, which allows controlling the interpreter search paths when building a PEX.

The release also removes --use-first-matching-interpreter, which was a misfeature. If you want to use fewer interpreters when building a PEX, use more precise values for --interpreter-constraint and/or --python-path, or use --python or --platform.

• Add --python-path to change interpreter search paths when building a PEX. (#1077)
• Remove --use-first-matching-interpreter misfeature. (#1076)
• Encapsulate --inherit-path handling. (#1072)

pex 2.1.18

---

2.1.18

This release brings official support for Python 3.9 and adds a new --tmpdir option to explicitly control the TMPDIR used by Pex and its subprocesses. The latter is useful when building PEXes in space-constrained environments in the face of large distributions.

The release also fixes --cert and --client-cert so that they work with PEP-518 builds in addition to fixing bytecode compilation races in highly parallel environments.

• Add a --tmpdir option to the Pex CLI. (#1068)
• Honor sys.executable unless macOS Framework. (#1065)

Sourced from pex's changelog.

2.1.20

This release improves interpreter discovery to prefer more recent patch versions, e.g. preferring Python 3.6.10 over 3.6.8.

We recently regained access to the docsite, and https://pex.readthedocs.io/en/latest/ is now up-to-date.

• Prefer more recent patch versions in interpreter discovery. (#1088) [PR #1088](pantsbuild/pex#1088)
• Fix --pex-python when it's the same as the current interpreter. (#1087) [PR #1087](pantsbuild/pex#1087)
• Fix dir_hash vs. bytecode compilation races. (#1080) [PR #1080](pantsbuild/pex#1080)
• Fix readthedocs doc generation. (#1081) [PR #1081](pantsbuild/pex#1081)

2.1.19

This release adds the --python-path option, which allows controlling the interpreter search paths when building a PEX.

The release also removes --use-first-matching-interpreter, which was a misfeature. If you want to use fewer interpreters when building a PEX, use more precise values for --interpreter-constraint and/or --python-path, or use --python or --platform.

• Add --python-path to change interpreter search paths when building a PEX. (#1077) [PR #1077](pantsbuild/pex#1077)
• Remove --use-first-matching-interpreter misfeature. (#1076) [PR #1076](pantsbuild/pex#1076)
• Encapsulate --inherit-path handling. (#1072) [PR #1072](pantsbuild/pex#1072)

2.1.18

This release brings official support for Python 3.9 and adds a new --tmpdir option to explicitly control the TMPDIR used by Pex and its subprocesses. The latter is useful when building PEXes in space-constrained environments in the face of large distributions.

The release also fixes --cert and --client-cert so that they work with PEP-518 builds in addition to fixing bytecode compilation races in highly parallel environments.

• Add a --tmpdir option to the Pex CLI. (#1068) [PR #1068](pantsbuild/pex#1068)
• Honor sys.executable unless macOS Framework. (#1065) [PR #1065](pantsbuild/pex#1065)
• Add Python 3.9 support. (#1064) [PR #1064](pantsbuild/pex#1064)
• Fix handling of --cert and --client-cert. (#1063) [PR #1063](pantsbuild/pex#1063)
• Add atomic_directory exclusive mode. (#1062) [PR #1062](pantsbuild/pex#1062)
• Fix --cert for PEP-518 builds. (#1060) [PR #1060](pantsbuild/pex#1060)

2.1.17

This release fixes a bug in --resolve-local-platforms handling that made it unusable in 2.1.16 (#1043) as well as fixing a long standing file handle leak (#1050) and a bug when running under macOS framework builds of Python (#1009).

• Fix --unzip performance regression. (#1056) [PR #1056](pantsbuild/pex#1056)
• Fix resource leak in Pex self-isolation. (#1052) [PR #1052](pantsbuild/pex#1052)
• Fix use of iter_compatible_interpreters. (#1048) [PR #1048](pantsbuild/pex#1048)
• Do not rely on sys.executable being accurate. (#1049) [PR #1049](pantsbuild/pex#1049)
• slightly demystify the relationship between platforms and interpreters in the library API and CLI (#1047) [PR #1047](pantsbuild/pex#1047)
• Path filter for PythonInterpreter.iter_candidates. (#1046) [PR #1046](pantsbuild/pex#1046)
• Add type hints to util.py and tracer.py (#1044) [PR #1044](pantsbuild/pex#1044)
• Add type hints to variables.py and platforms.py (#1042) [PR #1042](pantsbuild/pex#1042)

• 0cfe165 Prepare 2.1.20 (#1090)
• 93b0442 Fix --pex-python when it's the same as the current interpreter (#1087)
• c728fdd Prefer more recent patch versions in interpreter discovery. (#1088)
• 1d556dc Pin sphinx requirements for doc generation. (#1082)
• 0dbf838 Fix readthedocs doc generation. (#1081)
• aeaef10 Fix dir_hash vs. bytecode compilation races. (#1080)
• d70512c Prepare 2.1.19 (#1079)
• f6ec8ec Add --python-path to change interpreter search paths when building a PEX (#...
• dee8c4f Remove --use-first-matching-interpreter misfeature (#1076)
• 20a67c3 Encapsulate --inherit-path handling. (#1072)
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