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Where Are Class Properties Stored
Where Are Class Properties Stored?
✍: FYIcenter.com
Class properties are stored in a built-in property called "__dict__" in class "type" object.
The "__dict__" property is inherited from the base class "object" and managed by the Python engine.
If you ever forget what class properties are associated with a class, you can always look at the content of the built-in property "__dict__". For example:
>>> class user(): ... nextID = 1 ... def __init__(self,name="Joe",age=25): ... self.id = user.nextID ... self.name = name ... self.age = age ... user.nextID = user.nextID + 1 ... >>> user.instanceCount = 0 >>> user.__dict__ mappingproxy({'__module__': '__main__', 'nextID': 12, '__init__': <function use .__init__ at 0x01E37300>, 'dump': <function user.dump at 0x01E372B8>, '__dict__ : <attribute '__dict__' of 'user' objects>, '__weakref__': <attribute '__weakre __' of 'user' objects>, '__doc__': None, 'instanceCount': 2})
The output shows that other information about the class is also stored in the built-in property "__dict__" of the class "type" object.
⇒ Create New Instances of a Class
⇐ Manage and Use Class Properties
2018-01-27, 1080👍, 0💬
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