We're getting an error in pants 2.18.0 with buildi...
# generalh
high-yak-85899
12/10/2023, 6:27 PMWe're getting an error in pants 2.18.0 with building pex binaries. We're working on upgrading our OS from Ubuntu 20.04 and were hoping that the hermetic python offering through
pyenvhigh-yak-85899
12/10/2023, 6:28 PMError details
Copy code
$ pants package <path/to/pex>
17:45:24.97 [INFO] Completed: Building local_dists.pex
17:45:24.98 [ERROR] 1 Exception encountered:
Engine traceback:
in `package` goal
ProcessExecutionFailure: Process 'Building local_dists.pex' failed with exit code 102.
stdout:
stderr:
Could not find a compatible interpreter.
Examined the following interpreters:
1.) /usr/bin/python3.11 CPython==3.11.6
No interpreter compatible with the requested constraints was found:
Version matches CPython<3.9,>=3.8
Use `--keep-sandboxes=on_failure` to preserve the process chroot for inspection.high-yak-85899
12/10/2023, 6:28 PMI would expect this error when it came time to run the pex but not at build time.
h
happy-kitchen-89482
12/11/2023, 2:23 AMWell, Pants is running various pexes at build time...
happy-kitchen-89482
12/11/2023, 2:26 AMAre you setting https://www.pantsbuild.org/docs/reference-python-bootstrap#search_path in a way that would prevent it from finding the pyenv interpreters?
h
high-yak-85899
12/11/2023, 2:27 AMI don’t believe we’re setting it at all
high-yak-85899
12/11/2023, 2:28 AMWe’re using the launcher binary as well so it should have its own interpreter bundled by default, right?
h
happy-kitchen-89482
12/11/2023, 2:46 AMYes, but that is just for running Pants rules. Any tools Pants runs are invoked on interpreters found via that search path.
happy-kitchen-89482
12/11/2023, 2:46 AMSo that is the option to start playing with to see if you can manually coerce it to find the interpreters you want, and then see why that isn't happening by default.
h
high-yak-85899
12/11/2023, 2:58 AMA little confused on that? Should I try to get it to know about the pyenv provided interpreter?
h
happy-kitchen-89482
12/11/2023, 3:06 AMIt should by default (due to the
<PYENV>h
high-yak-85899
12/11/2023, 3:07 AMOkay, that’s makes sense to me. I’ll make sure to report back if we find any interesting behavior.
high-yak-85899
01/15/2025, 4:39 AMBeen a long time here, but just as an update here, I had to explicitly update
python-bootstrappants.toml Copy code
[python-bootstrap]
search_path = ["<PYENV>"]high-yak-85899
01/15/2025, 4:39 AMThen it works
high-yak-85899
01/15/2025, 4:39 AMOtherwise, pex building just fails on the first look in the system interpreter
high-yak-85899
01/15/2025, 4:40 AMThis is a better change anyway since I don't want pants to use the system interpreter here
high-yak-85899
01/15/2025, 4:40 AMI'll open a bug ticket tomorrow for this
high-yak-85899
01/15/2025, 11:25 PM14 Views