❯ ./python -m test test_descr -m test_slots -R :
0:00:00 load avg: 0.36 Run tests sequentially
0:00:00 load avg: 0.36 [1/1] test_descr
beginning 9 repetitions
123456789
.........

== Tests result: SUCCESS ==

1 test OK.

Total duration: 477 ms
Tests result: SUCCESS

If you want to add some asserts at the same time, it'd be good to assert assert(_PyType_HasFeature(type, Py_TPFLAGS_VALID_VERSION_TAG)); on a cache hit, and assert(type->tp_version_tag != 0); when we're about to store the cache.

If you want to add some asserts at the same time, it'd be good to assert assert(_PyType_HasFeature(type, Py_TPFLAGS_VALID_VERSION_TAG)); on a cache hit, and assert(type->tp_version_tag != 0); when we're about to store the cache.

Done in 589c3da