Test_tkinter fails

[rhinerfeld-eng]

Bug report

Bug description:

# Add a code block here, if required

richard@debin-13:~/cpython$ make test TESTOPTS="-v test_tkinter"
Checked 115 modules (37 built-in, 77 shared, 1 n/a on linux-x86_64, 0 disabled, 0 missing, 0 failed on import)
./python -E ./Tools/build/generate-build-details.py cat pybuilddir.txt/build-details.json
./python -E -m test --fast-ci -u-gui --timeout= -v test_tkinter

• ./python -u -W error -bb -E -m test --fast-ci -u-gui --timeout= -v test_tkinter --dont-add-python-opts
  == CPython 3.15.0a1+ (heads/main:f26ed455d55, Nov 14 2025, 14:59:48) [GCC 14.2.0]
  == Linux-6.12.48+deb13-amd64-x86_64-with-glibc2.41 little-endian
  == Python build: debug valgrind dtrace
  == cwd: /home/richard/cpython/build/test_python_worker_6208æ
  == CPU count: 4
  == encodings: locale=UTF-8 FS=utf-8
  == resources: all,-cpu,-gui

Using random seed: 1842487657
0:00:00 load avg: 0.22 Run 1 test in parallel using 1 worker process (timeout: 10 min, worker timeout: 15 min)
0:00:00 load avg: 0.22 [1/1] test_tkinter skipped (resource denied)
test_tkinter skipped -- Use of the 'gui' resource not enabled

== Tests result: NO TESTS RAN ==

10 slowest tests:

1 test skipped (resource denied):
test_tkinter

Total duration: 330 ms
Total tests: run=0
Total test files: run=0/1 resource_denied=1
Result: NO TESTS RAN
make: *** [Makefile:2447: test] Error 4

CPython versions tested on:

3.15

Operating systems tested on:

Linux

[zware]

As I assume you figured out on your own since you closed the issue, that's not a failure. As it reports, the test was not run because it was not allowed to. We default to not doing GUI tests without the -ugui option so that you can run the tests in the background without risk of them taking over desktop focus.