python 3.12 coverage is not generating/collecting

[trentontrees]

🐞 bug report

Affected Rule

Is this a regression?

works in 3.11

Description

Building coverage using python 3.12 is not properly connecting through rules_python (best I can tell).

🔬 Minimal Reproduction

Repo: https://github.com/trentontrees/bazel-python-coverage
Branch: fails_3_12

bazel coverage --combined_report=lcov //apps/demo/...

🔥 Exception or Error

INFO: Found 2 targets and 1 test target...
INFO: LCOV coverage report is located at /private/var/tmp/_bazel_trent/31f4e5efa0716cece0da5230e85c5024/execroot/__main__/bazel-out/_coverage/_coverage_report.dat
 and execpath is bazel-out/_coverage/_coverage_report.dat
INFO: From Coverage report generation:
Jan 28, 2024 5:14:10 PM com.google.devtools.coverageoutputgenerator.Main getTracefiles
INFO: Found 1 tracefiles.
Jan 28, 2024 5:14:10 PM com.google.devtools.coverageoutputgenerator.Main parseFilesSequentially
INFO: Parsing file bazel-out/darwin_arm64-fastbuild/testlogs/apps/demo/lib_test/coverage.dat
Jan 28, 2024 5:14:10 PM com.google.devtools.coverageoutputgenerator.Main getGcovInfoFiles
INFO: No gcov info file found.
Jan 28, 2024 5:14:10 PM com.google.devtools.coverageoutputgenerator.Main getGcovJsonInfoFiles
INFO: No gcov json file found.
Jan 28, 2024 5:14:10 PM com.google.devtools.coverageoutputgenerator.Main getProfdataFileOrNull
INFO: No .profdata file found.
Jan 28, 2024 5:14:10 PM com.google.devtools.coverageoutputgenerator.Main runWithArgs
WARNING: There was no coverage found.

🌍 Your Environment

Operating System:

  
aarch64-apple-darwin
  

Output of bazel version:

  
Bazelisk version: development
Build label: 6.4.0
Build target: bazel-out/darwin_arm64-opt/bin/src/main/java/com/google/devtools/build/lib/bazel/BazelServer_deploy.jar
Build time: Thu Oct 19 17:08:20 2023 (1697735300)
Build timestamp: 1697735300
Build timestamp as int: 1697735300
  

Rules_python version:

  
rules_python-0.29.0
  

Anything else relevant?
I can build coverage with python 3.12 tooling, just not automatically with rules_python.

[aignas]

Coverage wheels should be included for 3.12 python, it could be that the script generating the dependencies only includes it for versions up to 3.11. There is python/private/coverage_deps.bzl file that can be looked at to check this.

[trentontrees]

Thanks for the pointer. Created a PR to fix this issue: #1727

[trentontrees]

Should be fixed in the future 0.30.0 release.