readable() Called each time around the asynchronous loop to determine whether a channel’s socket should be added to the list

ssl.get_default_verify_paths() Returns a named tuple with paths to OpenSSL’s default cafile and capath. The paths are the same

signal.sigwaitinfo(sigset) Suspend execution of the calling thread until the delivery of one of the signals specified in the

ssl.OP_NO_SSLv2 Prevents an SSLv2 connection. This option is only applicable in conjunction with PROTOCOL_SSLv23

socket.getservbyname(servicename[, protocolname]) Translate an Internet service name and protocol name to a port number for

SSLContext.get_ca_certs(binary_form=False) Get a list of loaded “certification authority” (CA) certificates. If the binary_form

SSLContext.load_cert_chain(certfile, keyfile=None, password=None) Load a private key and the corresponding certificate. The

socket.socketpair([family[, type[, proto]]]) Build a pair of connected socket objects using the given address family, socket

exception ssl.SSLZeroReturnError A subclass of SSLError raised when trying to read or write and the SSL connection