array.count(x) Return the number of occurrences of x in the array.

date.__format__(format) Same as date.strftime(). This makes it possible to specify a format string for a date

parents Property returning a new ChainMap containing all of the maps in the current instance except the first one

class collections.Counter([iterable-or-mapping]) A Counter is a

class collections.ChainMap(*maps) A ChainMap groups multiple dicts or other mappings together to create a single

weakref.ReferenceType The type object for weak references objects.

datetime.isoweekday() Return the day of the week as an integer, where Monday is 1 and Sunday is 7. The same as self.date()

types.prepare_class(name, bases=(), kwds=None) Calculates the appropriate metaclass and creates the class namespace.

class datetime.timedelta(days=0, seconds=0, microseconds=0, milliseconds=0, minutes=0, hours=0, weeks=0) All arguments are optional

yeardayscalendar(year, width=3) Return the data for the specified year ready for formatting (similar to yeardatescalendar())