scaleb(x, y) Returns the first operand after adding the second value its exp.

walk() The walk() method is an all-purpose generator which can be used to iterate over all the parts and subparts of a message object tree, in depth-first traversal order. You will typically use walk() as the iterator in a for loop; each iteration returns the next subpart. Here’s an example that prints the MIME type of every part of a multipart message structure: >>> for part in msg.walk(): ... print(part.get_content_type()) multipart/report text/plain message/delivery-status te

atexit.unregister(func) Remove func from the list of functions to be run at interpreter shutdown. After calling unregister(), func is guaranteed not to be called when the interpreter shuts down, even if it was registered more than once. unregister() silently does nothing if func was not previously registered.

exception ftplib.error_proto Exception raised when a reply is received from the server that does not fit the response specifications of the File Transfer Protocol, i.e. begin with a digit in the range 1–5.

format_stack_entry(frame_lineno, lprefix=': ') Return a string with information about a stack entry, identified by a (frame, lineno) tuple: The canonical form of the filename which contains the frame. The function name, or "<lambda>". The input arguments. The return value. The line of code (if it exists).

writable() Return True if the stream supports writing. If False, write() and truncate() will raise OSError.

dumbdbm.close() Close the dumbdbm database.

os.spawnle(mode, path, ..., env) os.spawnlp(mode, file, ...) os.spawnlpe(mode, file, ..., env) os.spawnv(mode, path, args) os.spawnve(mode, path, args, env) os.spawnvp(mode, file, args) os.spawnvpe(mode, file, args, env) Execute the program path in a new process. (Note that the subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using these functions. Check especially the Replacing Older Functions with

class collections.abc.MappingView class collections.abc.ItemsView class collections.abc.KeysView class collections.abc.ValuesView ABCs for mapping, items, keys, and values views.

pdb.runcall(function, *args, **kwds) Call the function (a function or method object, not a string) with the given arguments. When runcall() returns, it returns whatever the function call returned. The debugger prompt appears as soon as the function is entered.