Python's advanced feature 5: Talk about Python's dynamic properties

Normally, when we define a class and create an instance of class, we can bind any property and method to that instance, which is the flexibility of dynamic language.

Look at one of the following common Get/set operations

class Student (object):     ...:pass   ....: in [175]: s = Student () in ['  Alex'in[print(s.name) Alex

How does its dynamic properties come about? Actually, it's the real process.

 in [178]: class   Student (object): .....: pass   179]: s = Student () in []: S.__setattr__  ( "  name   ",  alex  "   181]: S.__getattribute__  ( " name   " ) out[ 181]:  alex    

Thus, the __setattr__ and __getattribute__ methods are the real reasons for the instance to obtain dynamic properties.

Python's advanced feature 5: Talk about Python's dynamic properties