test.test_concurrent_futures.test_deadlock test_pyrepl failed on 1-core-VM

Bug report

Bug description:

While working on reproducible builds for openSUSE (sponsored by the NLnet NGI0 fund), I found that our python313 package fails to build on 1-core-VMs from two failing tests.

Full build log: https://rb.zq1.de/other/python313/build-j1.log

2 re-run tests:
    test.test_concurrent_futures.test_deadlock test_pyrepl

2 tests failed:
    test.test_concurrent_futures.test_deadlock test_pyrepl

447 tests OK.

Total duration: 3 hour 35 sec
Total tests: run=42,874 (filtered) failures=7 skipped=1,745
Total test files: run=466/468 (filtered) failed=2 skipped=15 resource_denied=4 rerun=2

If those tests cannot pass in such an env, they should be skipped automatically.

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Comece revisando o log de build vinculado e reproduzindo test.test_concurrent_futures.test_deadlock e test_pyrepl em uma VM Linux com um único núcleo. Determine se as falhas são específicas de ambientes com um único núcleo e, em seguida, faça com que os testes afetados sejam ignorados automaticamente nesses ambientes; considera-se concluído quando os testes não falharem mais nesse ambiente e a execução mais ampla dos testes continuar válida.