seen_greeting Holds a string containing the greeting sent by the client in its “HELO”.

Node.unlink() Break internal references within the DOM so that it will be garbage collected on versions of Python without cyclic

lock() unlock() Three locking mechanisms are used—dot locking and, if available, the flock() and lockf()

binascii.a2b_hex(hexstr) binascii.unhexlify(hexstr) Return the binary data represented by the hexadecimal string

tzinfo.utcoffset(dt) Return offset of local time from UTC, in minutes east of UTC. If local time is west of UTC, this should

date.timetuple() Return a

audioop.rms(fragment, width) Return the root-mean-square of the fragment, i.e. sqrt(sum(S_i^2)/n).

window.timeout(delay) Set blocking or non-blocking read behavior for the window. If delay is negative, blocking read

max_prefixlen The total number of bits in the address representation for this version: 32 for IPv4, 128

os.pathconf_names Dictionary mapping names accepted by pathconf() and fpathconf() to the integer values