On Wed, May 30, 2018, 14:21 Victor Stinner <vstinner@redhat.com> wrote:MemoryBIO was the key feature which allowed to implement TLS for the
ProactorEventLoop (IOCP) of asyncio.MemoryBIO is definitely super useful for async libraries – trio uses it, asyncio uses it, twisted uses it (via pyopenssl). But I don't know of anyone who currently needs it but hasn't already found a way to get it.