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Python 3.14 introduced borrowed references optimization (`LOAD_FAST_BORROW` opcodes) which avoids incrementing refcounts for temporary stack references. This causes `sys.getrefcount()` to return lower values than in 3.13. Change all `sys.getrefcount(obj) == N` assertions to `<= N` to work across both versions while still catching memory leaks.
mscolnick
approved these changes
Oct 14, 2025
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Python 3.14 introduced borrowed references optimization (
LOAD_FAST_BORROWopcodes) which avoids incrementing refcounts for temporary stack references. This causessys.getrefcount()to return lower values than in 3.13.Change all
sys.getrefcount(obj) == Nassertions to<= Nto work across both versions while still catching memory leaks.