BaseProtocol.resume_writing() Called when the transport’s buffer drains below the low-water mark.

UUID.variant The UUID variant, which determines the internal layout of the UUID. This will be one of the integer constants RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, or RESERVED_FUTURE.

addFailure(test, err) Called when the test case test signals a failure. err is a tuple of the form returned by sys.exc_info(): (type, value, traceback). The default implementation appends a tuple (test, formatted_err) to the instance’s failures attribute, where formatted_err is a formatted traceback derived from err.

incrementalencoder incrementaldecoder Incremental encoder and decoder classes or factory functions. These have to provide the interface defined by the base classes IncrementalEncoder and IncrementalDecoder, respectively. Incremental codecs can maintain state.

readline.set_completer_delims(string) readline.get_completer_delims() Set or get the word delimiters for completion. These determine the start of the word to be considered for completion (the completion scope). These functions access the rl_completer_word_break_characters variable in the underlying library.

xml.sax.handler.all_properties List of all known property names.

sys.call_tracing(func, args) Call func(*args), while tracing is enabled. The tracing state is saved, and restored afterwards. This is intended to be called from a debugger from a checkpoint, to recursively debug some other code.

pack(v1, v2, ...) Identical to the pack() function, using the compiled format. (len(result) will equal size.)

lngettext(singular, plural, n) If a fallback has been set, forward lngettext() to the fallback. Otherwise, return the translated message. Overridden in derived classes.

Telnet.read_lazy() Process and return data already in the queues (lazy). Raise EOFError if connection closed and no data available. Return b'' if no cooked data available otherwise. Do not block unless in the midst of an IAC sequence.