#14427 Pants Daily extened testing breaks for python 3.9 & 3.8 Issue created by asherf There seems to be an issue with one of the tests:

tests/python/pants_test/integration/pep561_integration_test.py:pep561_integration

it seems that there might be an issues with how wheels are generated.

E               pants.engine.process.ProcessExecutionFailure: Process 'Building requirements.pex with 2 requirements: pantsbuild.pants.testutil@ file:///tmp/process-executionhjsTuh/pantsbuild.pants.testutil-2.10.0rc0-py37.py38.py39-none-any.whl, pantsbuild.pants@ file:///tmp/process-executionhjsTuh/pantsbuild.pants-2.10.0rc0-cp39-cp39-linux_x86_64.whl' failed with exit code 1.
E               stdout:
E
E               stderr:
E               ERROR: pantsbuild.pants-2.10.0rc0-cp39-cp39-linux_x86_64.whl is not a supported wheel on this platform.
E               pid 1740 -> /data/home/asher/.cache/pants/named_caches/pex_root/venvs/deb35be568d133a27ee7892e2e4d92cdaec27960/6d236475afbb7effab5a8fa5c138ffa500fb50b5/pex --disable-pip-version-check --no-python-version-warning --exists-action a --isolated -q --cache-dir /data/home/asher/.cache/pants/named_caches/pex_root --log /tmp/process-executionauGYaH/.tmp/tmpddl0jvx4/pip.log download --dest /tmp/process-executionauGYaH/.tmp/tmpu1558erc/data.home.asher..pyenv.versions.3.7.10.bin.python3.7 pantsbuild.pants.testutil@ file:///tmp/process-executionhjsTuh/pantsbuild.pants.testutil-2.10.0rc0-py37.py38.py39-none-any.whl pantsbuild.pants@ file:///tmp/process-executionhjsTuh/pantsbuild.pants-2.10.0rc0-cp39-cp39-linux_x86_64.whl --index-url <https://pypi.org/simple/> --retries 5 --timeout 15 exited with 1 and STDERR:
E               None
E
E
E
E               Use `--no-process-cleanup` to preserve process chroots for inspection.
E
E       assert 1 == 0
E        +  where 1 = PantsResult(command=['/data/home/asher/.cache/pants/named_caches/pex_root/venvs/s/1f8cedfe/venv/bin/python3.9', '-m', ...rocess chroots for inspection.\n\n', workdir='/tmp/process-executionhjsTuh/.pants.d/tmp/tmpzcddf302.pants.d', pid=1409).exit_code
<https://github.com/pantsbuild/pants/runs/5122573691?check_suite_focus=true#step:14:594>
src/python/pants/testutil/pants_integration_test.py:53: AssertionError

This can be repo'ed on an Ubuntu machine like so:

PANTS_PYTHON_INTERPRETER_CONSTRAINTS="['==3.9.*']"  ./pants test  tests/python/pants_test/integration/pep561_integration_test.py

@witty-crayon-22786 @Eric-Arellano @enough-analyst-54434 pantsbuild/pants