I don't think the upstream fix for this is actually complete; MuxWrapper passes the files up to the SockWrapper constructor, but SockWrapper still thinks they are sockets and uses them as such, e.g. when calling self.rsock.setblocking(False) which will fail when SockWrapper.rsock is a file, not a socket.
I don't think the upstream fix for this is actually complete; MuxWrapper passes the files up to the SockWrapper constructor, but SockWrapper still thinks they are sockets and uses them as such, e.g. when calling self.rsock. setblocking( False) which will fail when SockWrapper.rsock is a file, not a socket.