data A real dictionary used to store the contents of the UserDict class.

types.FunctionType types.LambdaType The type of user-defined functions and functions created by lambda

monthdatescalendar(year, month) Return a list of the weeks in the month month of the year as full weeks. Weeks

types.MethodType The type of methods of user-defined class instances.

enum.unique() Enum class decorator that ensures only one name is bound to any one value.

Repr.maxlist Repr.maxtuple Repr.maxset Repr.maxfrozenset

weakref.proxy(object[, callback]) Return a proxy to object which uses a weak reference. This supports use of the proxy

datetime.day Between 1 and the number of days in the given month of the given year.

default_factory This attribute is used by the __missing__() method; it is initialized from the first argument to

data A real list