I've got a dependency on

pyrealsense2

and I need to build a cross-platform

.pex

that will run on OSX and Linux. I'm building on Linux. I've manually built the right

.whl

file on OSX and uploaded it to a private GCP-based PyPi repo. The following works fine in a

venv

in which I'm running pants:

pip install --trusted-host /us-central1-python.pkg.dev --index-url <https://us-central1-python.pkg.dev/infrastructure-314723/python-deps/> --platform macosx_10_15_x86_64 --implementation cp --python-version 37 --abi cp37m --only-binary :all: --target /tmp pyrealsense2

However, a

./pants package /path/to/thing

fails with:

$ ./pants package realsense/cli/
12:49:06.11 [INFO] Completed: Resolving 3 requirements: matplotlib, numpy, pyrealsense2
12:49:06.11 [ERROR] Exception caught: (pants.engine.internals.scheduler.ExecutionError)
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/bin/local_pants_runner.py", line 229, in _run_inner
    return self._perform_run(goals)
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/bin/local_pants_runner.py", line 168, in _perform_run
    return self._perform_run_body(goals, poll=False)
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/bin/local_pants_runner.py", line 185, in _perform_run_body
    return self.graph_session.run_goal_rules(
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/init/engine_initializer.py", line 135, in run_goal_rules
    exit_code = self.scheduler_session.run_goal_rule(
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/engine/internals/scheduler.py", line 530, in run_goal_rule
    self._raise_on_error([t for _, t in throws])
  File "/home/oliver/.cache/pants/setup/bootstrap-Linux-x86_64/2.4.0_py38/lib/python3.8/site-packages/pants/engine/internals/scheduler.py", line 498, in _raise_on_error
    raise ExecutionError(

Exception message: 1 Exception encountered:

  ProcessExecutionFailure: Process 'Resolving 3 requirements: matplotlib, numpy, pyrealsense2' failed with exit code 1.
stdout:

stderr:
ERROR: Could not find a version that satisfies the requirement pyrealsense2
ERROR: No matching distribution found for pyrealsense2
pid 587331 -> /home/oliver/.pyenv/versions/3.7.10/bin/python3.7 /home/oliver/.cache/pants/named_caches/pex_root/pip.pex/cf4106b4c7898b462f7c172dde686a9747103f1a --disable-pip-version-check --no-python-version-warning --exists-action a --isolated -q --cache-dir /home/oliver/.cache/pants/named_caches/pex_root --log /tmp/process-executionntUtWf/.tmp/tmpmzcd3hpx/pip.log download --dest /tmp/process-executionntUtWf/.tmp/tmps_6hxe4q/macosx_10_15_x86_64-cp-37-cp37m --platform macosx_10_15_x86_64 --implementation cp --python-version 37 --abi cp37m --only-binary :all: --constraint constraints.txt matplotlib numpy pyrealsense2 --index-url <https://pypi.org/simple/> --find-links <https://us-central1-python.pkg.dev/infrastructure-314723/python-deps/> --retries 5 --timeout 15 exited with 1 and STDERR:
None



(Use --print-stacktrace to see more error details.)

Note that the command line Pants is generating seems to be saying to use my private repo at

<https://us-central1-python.pkg.dev/infrastructure-314723/python-deps/>

. However, I suspect that doesn't know about Google's auth stuff which I did set up correctly with

pip

(see the successful pip install above). Or maybe the issue is that

pyrealsense2

for Linux is coming from

<http://pypi.org|pypi.org>

while for OSX it needs to come from a different repo?? Any help would be appreciated.

I spy

--constraint constraints.txt

. Does your contraints.txt mention the same version of

pyrealsense2

as your

requirements.txt

? If not, then you get this sort of confusing message from Pip. Pex is tracking this here if so: https://github.com/pantsbuild/pex/issues/1200

yes, the versions match.