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

tempfile.tempdir When set to a value other than None, this variable defines the default value for the dir

Unpacker.reset(data) Resets the string buffer with the given data.

exception MemoryError Raised when an operation runs out of memory but the situation may still be rescued (by deleting some objects)

os.sched_get_priority_max(policy) Get the maximum priority value for policy. policy is one of the scheduling

codecs.ignore_errors(exception) Implements the 'ignore' error handling: malformed data is ignored and encoding

max_count The maximum number of headers of this type that can have the same name. A value of None

os.urandom(n) Return a string of n random bytes suitable for cryptographic use. This

buffer If set to true, sys.stdout and sys.stderr will be buffered in between startTest()

state(statespec=None) Modify or inquire widget state. If statespec is specified, sets the widget state according to