[3.6] bpo-35300: Add usage note to the lru_cache() docs (GH-10707)#10709

rhettinger merged 1 commit into

python:3.6python/cpython:3.6from

miss-islington:backport-f0e0f20-3.6miss-islington/cpython:backport-f0e0f20-3.6Copy head branch name to clipboard