struct.pack(fmt, v1, v2, ...) Return a bytes object containing the values v1, v2, ... packed according to the format string fmt. The arguments must match the values required by the format exactly.

lock.release() Releases the lock. The lock must have been acquired earlier, but not necessarily by the same thread.

string.printable String of ASCII characters which are considered printable. This is a combination of digits, ascii_letters, punctuation, and whitespace.

copy.deepcopy(x) Return a deep copy of x.

class tkinter.tix.ExFileSelectBox The ExFileSelectBox widget is usually embedded in a tixExFileSelectDialog widget. It provides a convenient method for the user to select files. The style of the ExFileSelectBox widget is very similar to the standard file dialog on MS Windows 3.1.

packed

st_mtime_ns Time of most recent content modification expressed in nanoseconds as an integer.

persistent_id(obj) Do nothing by default. This exists so a subclass can override it. If persistent_id() returns None, obj is pickled as usual. Any other value causes Pickler to emit the returned value as a persistent ID for obj. The meaning of this persistent ID should be defined by Unpickler.persistent_load(). Note that the value returned by persistent_id() cannot itself have a persistent ID. See Persistence of External Objects for details and examples of uses.

class email.headerregistry.ParameterizedMIMEHeader MOME headers all start with the prefix ‘Content-‘. Each specific header has a certain value, described under the class for that header. Some can also take a list of supplemental parameters, which have a common format. This class serves as a base for all the MIME headers that take parameters. params A dictionary mapping parameter names to parameter values.

textwrap.wrap(text, width=70, **kwargs) Wraps the single paragraph in text (a string) so every line is at most width characters long. Returns a list of output lines, without final newlines. Optional keyword arguments correspond to the instance attributes of TextWrapper, documented below. width defaults to 70. See the TextWrapper.wrap() method for additional details on how wrap() behaves.