U ™P^¹ã@sˆdZddlZddlmZddlmZddlmZddlm Z m Z ddl m Z ddl mZerhdd lmZed d „ƒZGd d „d eƒZdS)zHTTP cache implementation. éN)Úcontextmanager)Ú BaseCache)Ú FileCache)Úadjacent_tmp_fileÚreplace)Ú ensure_dir)ÚMYPY_CHECK_RUNNING)ÚOptionalc cs(z dVWnttfk r"YnXdS)zvIf we can't access the cache then we can just skip caching and process requests as if caching wasn't enabled. N)ÚOSErrorÚIOError©r r ús