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python -m test color print with and without -j #129363
Description
Activity
./python.exe -m test -j4prints test results in color../python.exe -m testdoes not../python.exe -m testdoes print test results in colour, but it only prints success results for slow tests, so this is technically a feature. More at #129364 (review).Anyway, this only affects 3.14 so the in practice the distinction doesn't affect bugfix backports :)
Bug report
Bug description:
./python.exe -m test -j4prints test results in color../python.exe -m testdoes not. I'm assuming that the-jbehaviour is the intended one, as that's the basic instruction in the dev guide.Having looked at the code, looks like
Regrtest::run_tests_sequentiallyis a tiny bit outdated. I'll submit a PR for consideration in a bit (submitting issue to get an issue number).Here is an asciinema link demonstrating the behaviour.
CPython versions tested on:
CPython main branch
Operating systems tested on:
macOS
Linked PRs
python -m testwithout the-jflag #129364