itertools.permutations(iterable, r=None) Return successive r length permutations of elements in the iterable. If r is not specified or is None, then r defaults to the length of the iterable and all possible full-length permutations are generated. Permutations are emitted in lexicographic sort order. So, if the input iterable is sorted, the permutation tuples will be produced in sorted order. Elements are treated as unique based on their position, not on their value. So if the input elements

hash.digest() Return the digest of the data passed to the update() method so far. This is a bytes object of size digest_size which may contain bytes in the whole range from 0 to 255.

classmethod chain.from_iterable(iterable) Alternate constructor for chain(). Gets chained inputs from a single iterable argument that is evaluated lazily. Roughly equivalent to: def from_iterable(iterables): # chain.from_iterable(['ABC', 'DEF']) --> A B C D E F for it in iterables: for element in it: yield element

class xml.sax.handler.ErrorHandler Interface used by the parser to present error and warning messages to the application. The methods of this object control whether errors are immediately converted to exceptions or are handled in some other way.

ContentHandler.startElementNS(name, qname, attrs) Signals the start of an element in namespace mode. The name parameter contains the name of the element type as a (uri, localname) tuple, the qname parameter contains the raw XML 1.0 name used in the source document, and the attrs parameter holds an instance of the AttributesNS interface (see The AttributesNS Interface) containing the attributes of the element. If no namespace is associated with the element, the uri component of name will be N

disable() Stop collecting profiling data.

email.utils.localtime(dt=None) Return local time as an aware datetime object. If called without arguments, return current time. Otherwise dt argument should be a datetime instance, and it is converted to the local time zone according to the system time zone database. If dt is naive (that is, dt.tzinfo is None), it is assumed to be in local time. In this case, a positive or zero value for isdst causes localtime to presume initially that summer time (for example, Daylight Saving Time) is or is

Unpacker.set_position(position) Sets the data buffer unpack position to position. You should be careful about using get_position() and set_position().

multiprocessing.Value(typecode_or_type, *args, lock=True) Return a ctypes object allocated from shared memory. By default the return value is actually a synchronized wrapper for the object. The object itself can be accessed via the value attribute of a Value. typecode_or_type determines the type of the returned object: it is either a ctypes type or a one character typecode of the kind used by the array module. *args is passed on to the constructor for the type. If lock is True (the default)

plistlib.readPlist(pathOrFile) Read a plist file. pathOrFile may be either a file name or a (readable and binary) file object. Returns the unpacked root object (which usually is a dictionary). This function calls load() to do the actual work, see the documentation of that function for an explanation of the keyword arguments. Note Dict values in the result have a __getattr__ method that defers to __getitem_. This means that you can use attribute access to access items of these dictionaries.