Verbose option ignored when running tests with "-ci"

[jaraco]

Another problem I've noticed: I can pass -v to the test runner and it will give a verbose output of the tests run, but if I pass --fast-ci or --slow-ci, the -v seems to be ignored:

stan@raspberrypi:~/cpython $ ./python -W error -m test --fast-ci test_importlib --dont-add-python-opts -v
== CPython 3.15.0a0 (heads/gh-138313:43357c2, Sep 7 2025, 18:10:29) [GCC 12.2.0]
== Linux-6.12.20+rpt-rpi-v8-aarch64-with-glibc2.36 little-endian
== Python build: release
== cwd: /home/stan/cpython/build/test_python_worker_3504242æ
== CPU count: 4
== encodings: locale=ISO-8859-1 FS=utf-8
== resources: all,-cpu

Using random seed: 27757186
0:00:00 load avg: 0.36 Run 1 test in parallel using 1 worker process (timeout: 10 min, worker timeout: 15 min)
0:00:10 load avg: 0.46 [1/1] test_importlib passed

== Tests result: SUCCESS ==

10 slowest tests:
- test_importlib: 10.5 sec

1 test OK.

Total duration: 10.5 sec
Total tests: run=1,349 skipped=19
Total test files: run=1/1
Result: SUCCESS
stan@raspberrypi:~/cpython $ ./python -W error -m test --slow-ci test_importlib --dont-add-python-opts -v
== CPython 3.15.0a0 (heads/gh-138313:43357c2, Sep 7 2025, 18:10:29) [GCC 12.2.0]
== Linux-6.12.20+rpt-rpi-v8-aarch64-with-glibc2.36 little-endian
== Python build: release
== cwd: /home/stan/cpython/build/test_python_worker_3504340æ
== CPU count: 4
== encodings: locale=ISO-8859-1 FS=utf-8
== resources: all

Using random seed: 958552036
0:00:00 load avg: 0.30 Run 1 test in parallel using 1 worker process (timeout: 20 min, worker timeout: 25 min)
0:00:10 load avg: 0.48 [1/1] test_importlib passed

== Tests result: SUCCESS ==

10 slowest tests:
- test_importlib: 10.4 sec

1 test OK.

Total duration: 10.4 sec
Total tests: run=1,349 skipped=19
Total test files: run=1/1
Result: SUCCESS

So I'm not at all confident on which tests are being run because the test runner is only reporting running one test.

Originally posted by @jaraco in #138313

Linked PRs

• gh-139208: Fix regrtest --fast-ci --verbose #139240
• [3.14] gh-139208: Fix regrtest --fast-ci --verbose (GH-139240) #139260
• [3.13] gh-139208: Fix regrtest --fast-ci --verbose (GH-139240) #139261

[AA-Turner]

cc @vstinner

[vstinner]

I wrote #139240 to fix this behavior.

[vstinner]

Fixed. Thanks for your bug report.