def makeConnection(self, transport):
        """
        Connect this wrapper to the given transport and initialize the
        necessary L{OpenSSL.SSL.Connection} with a memory BIO.
        """
        self._tlsConnection = self.factory._createConnection(self)
        self._appSendBuffer = []

        # Add interfaces provided by the transport we are wrapping:
        for interface in providedBy(transport):
            directlyProvides(self, interface)

        # Intentionally skip ProtocolWrapper.makeConnection - it might call
        # wrappedProtocol.makeConnection, which we want to make conditional.
        Protocol.makeConnection(self, transport)
        self.factory.registerProtocol(self)
        if self._connectWrapped:
            # Now that the TLS layer is initialized, notify the application of
            # the connection.
            ProtocolWrapper.makeConnection(self, transport)

        # Now that we ourselves have a transport (initialized by the
        # ProtocolWrapper.makeConnection call above), kick off the TLS
        # handshake.
        self._checkHandshakeStatus()

        Connect this wrapper to the given transport and initialize the
        necessary L{OpenSSL.SSL.Connection} with a memory BIO.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/protocols/tls.py