Issue #17807: Generators can now be finalized even when they are part of a reference cycle.
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 4749f24..8314977 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -764,7 +764,7 @@
nfrees = len(x.f_code.co_freevars)
extras = x.f_code.co_stacksize + x.f_code.co_nlocals +\
ncells + nfrees - 1
- check(x, vsize('12P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
+ check(x, vsize('13P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
# function
def func(): pass
check(func, size('12P'))