bpo-40288: atexit supports more than once loading per interpreter by corona10 · Pull Request #19562 · python/cpython

https://bugs.python.org/issue40288

./python.exe -m test test_atexit -R 3:3
0:00:00 load avg: 2.03 Run tests sequentially
0:00:00 load avg: 2.03 [1/1] test_atexit
beginning 6 repetitions
123456
......

== Tests result: SUCCESS ==

1 test OK.

Total duration: 1.3 sec
Tests result: SUCCESS

@ericsnowcurrently: Do you have an opinion on https://bugs.python.org/issue40288 ? Should we allow to create multiple instances of the atexit module per interpreter? Or should we raise an exception?