FTP.dir(argument[, ...]) Produce a directory listing as returned by the LIST command, printing it to standard output. The optional argument is a directory to list (default is the current server directory). Multiple arguments can be used to pass non-standard options to the LIST command. If the last argument is a function, it is used as a callback function as for retrlines(); the default prints to sys.stdout. This method returns None. Note If your server supports the command, mlsd() offers a

array.tostring() Deprecated alias for tobytes().

mimetypes.guess_type(url, strict=True) Guess the type of a file based on its filename or URL, given by url. The return value is a tuple (type, encoding) where type is None if the type can’t be guessed (missing or unknown suffix) or a string of the form 'type/subtype', usable for a MIME content-type header. encoding is None for no encoding or the name of the program used to encode (e.g. compress or gzip). The encoding is suitable for use as a Content-Encoding header, not as a Content-Transfer

TarInfo.uid User ID of the user who originally stored this member.

platform.architecture(executable=sys.executable, bits='', linkage='') Queries the given executable (defaults to the Python interpreter binary) for various architecture information. Returns a tuple (bits, linkage) which contain information about the bit architecture and the linkage format used for the executable. Both values are returned as strings. Values that cannot be determined are returned as given by the parameter presets. If bits is given as '', the sizeof(pointer) (or sizeof(long) on

class nntplib.NNTP(host, port=119, user=None, password=None, readermode=None, usenetrc=False[, timeout]) Return a new NNTP object, representing a connection to the NNTP server running on host host, listening at port port. An optional timeout can be specified for the socket connection. If the optional user and password are provided, or if suitable credentials are present in /.netrc and the optional flag usenetrc is true, the AUTHINFO USER and AUTHINFO PASS commands are used to identify and au

importlib.util.find_spec(name, package=None) Find the spec for a module, optionally relative to the specified package name. If the module is in sys.modules, then sys.modules[name].__spec__ is returned (unless the spec would be None or is not set, in which case ValueError is raised). Otherwise a search using sys.meta_path is done. None is returned if no spec is found. If name is for a submodule (contains a dot), the parent module is automatically imported. name and package work the same as fo

symmetric_difference(other) set ^ other Return a new set with elements in either the set or other but not both.

coroutine wait_for(predicate) Wait until a predicate becomes true. The predicate should be a callable which result will be interpreted as a boolean value. The final predicate value is the return value. This method is a coroutine.

traceback.walk_stack(f) Walk a stack following f.f_back from the given frame, yielding the frame and line number for each frame. If f is None, the current stack is used. This helper is used with StackSummary.extract(). New in version 3.5.