Standard type classification for Python

Data properties	Storage model	Update model	Access model
Digital	Scalar/Atomic Type	Immutable types	Direct access
String	Scalar/Atomic Type	Immutable types	Order
List	Container	Variable type	Order
Meta-group	Container	Immutable types	Order
Dictionary	Container	Variable type	Mapping

The update model can be immutable, depending on the ID of the object. Cases:

>>> a = 4;b = "a"; c = [n/a];d = (n/a);
>>> ID (a), id (b), ID (c), id (d), ID (e)
(30303248L, 34497040L, 43208904L, 43599480L, 34692456L)
>>> a= a+1
>>> ID (a)
30303224L
>>> b= + b
>>> ID (b)
39367184L
>>> C.append (4)
>>> ID (c)
43208904L

>>> d= (1,2,3,4)
>>> ID (d)
39259096L

>>> e = {1,2,3,4}
>>> ID (E)
34692456L

Standard type classification for Python