Python Basic Tutorial Notes--7th: More abstract (Class)

The following goes into Python's object-oriented:

The magic of the object:

Polymorphic:---can use the same action for objects of different classes

Encapsulation: How---work inside an externally hidden object

Inheritance:---the creation of specialized class objects based on common classes

(1) Polymorphism:

Isinstance (...)
Isinstance (object, class-or-type-or-tuple), bool Check type of Object

Isinstance (object, tuple) check whether it is a tuple

A function bound to an object is called a method such as >>> [, ' A ', ' 1 ', ' A '].count (' a ') 2

Repr (object), string a polymorphic way, no matter what conversion to a string

(2) package

Python Basic Tutorial Notes--7th: More abstract (Class)