[3.7] bpo-35961: Fix a crash in slice_richcompare() (GH-11830) #11839
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Fix a crash in slice_richcompare(): use strong references rather than
stolen references for the two temporary internal tuples.
The crash (or assertion error) occurred if a garbage collection
occurred during slice_richcompare(), especially while calling
PyObject_RichCompare(t1, t2, op).
(cherry picked from commit dcb68f4)
Co-authored-by: Victor Stinner vstinner@redhat.com
https://bugs.python.org/issue35961