bpo-32739: [3.7] Fix typo -- missing "not" (GH-5528) by miss-islington · Pull Request #5530 · python/cpython

Expand Up @@ -514,7 +514,7 @@ or subtracting from an empty counter. Rotate the deque *n* steps to the right. If *n* is negative, rotate to the left.
When the deque is empty, rotating one step to the right is equivalent When the deque is not empty, rotating one step to the right is equivalent to ``d.appendleft(d.pop())``, and rotating one step to the left is equivalent to ``d.append(d.popleft())``.
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