> def getCachedResult(cache, key): > > def release(result, item): > item.release() > return result > > def renew(data): > return renew(data) > > def notFound(fail): > fail.trap(NotFound) > > def checkObsolete(item): > if item.obsolete(): > return None > else: > d = item.read() > d.addBoth(release, item) > d.addCallback(renew) > return d > > d = cache.open(key) > d.addCallbacks(checkObsolete, notFound) > return d > Hi Terry If item.obsolete() raise exception item remain not released. Additional try ... except ... safe us but looks ugly
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