socket.inet_aton(ip_string) Convert an IPv4 address from dotted-quad string format (for example, ‘123.45.67.89’) to 32-bit packed

ssl.PROTOCOL_TLSv1_1 Selects TLS version 1.1 as the channel encryption protocol. Available only with openssl version 1.0.1+

SSLSocket.context The SSLContext object this SSL socket is tied to. If the SSL socket was created using the top-level

handle_connect() Called when the active opener’s socket actually makes a connection. Might send a “welcome” banner, or initiate

class ssl.MemoryBIO A memory buffer that can be used to pass data between Python and an SSL protocol instance.

ssl.PROTOCOL_TLSv1_2 Selects TLS version 1.2 as the channel encryption protocol. This is the most modern version, and probably

ssl.enum_certificates(store_name) Retrieve certificates from Windows’ system cert store. store_name may be one of CA

ssl.PEM_cert_to_DER_cert(PEM_cert_string) Given a certificate as an ASCII PEM string, returns a DER-encoded sequence of bytes

signal.getitimer(which) Returns current value of a given interval timer specified by which. Availability: Unix.

find(sub[, start[, end]]) Returns the lowest index in the object where the subsequence sub is found, such that sub