python--some descriptions of the parent class and the child class

The initialization method of a class in Python is __init__ (), so the initialization method of the parent class and subclass is this, and if the subclass does not implement __init__ (), the initialization function of the parent class is called,

If the subclass implements this function, the __init__ () of the parent class is called explicitly in this function, which is not the same as C++,java, which automatically calls the parent class constructor.

# example  of calling a parent class initialization method in initialization # B is a subclass  of a class B (A):         def __init__ (self):            super (). __init__ ()  

Three ways to call other member functions of the parent class:
1. Direct write class name call;

2. Call with super (type, obj) method (ARG).

3. Within the definition of a subclass, if you call a member of the parent class, you can use Super (). Method (Arg) directly.

class A:         def method (self, arg):                return      class B (A):         def method (self, arg):     #         A.method (self,arg)                #1     #        super (B, Self). Method (ARG)        #2      #         Super (). Method (ARG)               #3   

[note] If you are outside the subclass definition (that is, within other function logic, when the subclass object calls the parent class member), follow:

...   = B ()    super (B,ob). Method (ARG)    # calls the method of the parent class A of class B.   ...  

python--some descriptions of the parent class and the child class