Issue #24913: Fix overrun error in deque.index().
Reported by John Leitch and Bryce Darling, patch by Raymond Hettinger.
B
Brett Cannon committed
df6b544ff6f342e8a64056e627867a70413bfdb0
Parent: b3d5313
Reported by John Leitch and Bryce Darling, patch by Raymond Hettinger.