coroutine AbstractEventLoop.connect_read_pipe(protocol_factory, pipe) Register read pipe in eventloop. protocol_factory should instantiate object with Protocol interface. pipe is a file-like object. Return pair (transport, protocol), where transport supports the ReadTransport interface. With SelectorEventLoop event loop, the pipe is set to non-blocking mode. This method is a coroutine.

os.chdir(path) Change the current working directory to path. This function can support specifying a file descriptor. The descriptor must refer to an opened directory, not an open file. New in version 3.3: Added support for specifying path as a file descriptor on some platforms.

Widget.tk.createfilehandler(file, mask, func) Registers the file handler callback function func. The file argument may either be an object with a fileno() method (such as a file or socket object), or an integer file descriptor. The mask argument is an ORed combination of any of the three constants below. The callback is called as follows: callback(file, mask)

set_seqs(a, b) Set the two sequences to be compared.

class chunk.Chunk(file, align=True, bigendian=True, inclheader=False) Class which represents a chunk. The file argument is expected to be a file-like object. An instance of this class is specifically allowed. The only method that is needed is read(). If the methods seek() and tell() are present and don’t raise an exception, they are also used. If these methods are present and raise an exception, they are expected to not have altered the object. If the optional argument align is true, chunks

class tkinter.tix.DirTree The DirTree widget displays a tree view of a directory, its previous directories and its sub-directories. The user can choose one of the directories displayed in the list or change to another directory.

to_integral_exact(x) Rounds to an integer.

marshal.load(file) Read one value from the open file and return it. If no valid value is read (e.g. because the data has a different Python version’s incompatible marshal format), raise EOFError, ValueError or TypeError. The file must be an open file object opened in binary mode ('rb' or 'r+b'). Note If an object containing an unsupported type was marshalled with dump(), load() will substitute None for the unmarshallable type.

is_qnan() Return True if the argument is a quiet NaN, and False otherwise.

exception ssl.SSLZeroReturnError A subclass of SSLError raised when trying to read or write and the SSL connection has been closed cleanly. Note that this doesn’t mean that the underlying transport (read TCP) has been closed. New in version 3.3.