skip tests using thread-unsafe constructs on free-threaded build #4476
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This skips tests that rely on setting
sys.unraisablehook
and tests that usewarnings.catch_warnings
.Setting anything on the
sys
module is overriding global state, so it fundamentally isn't thread safe. An alternative would be to make it so any test that usesUnraisableCapture
needs to acquire a mutex first. Happy to do that if anyone is uncomfortable with skipping tests.Unfortunately there isn't a similar workaround for tests relying on
catch_warnings
, it's fundamentally not thread safe, as mentioned in the docs for it.