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Ting-Chieh Huang
2,760 PointsHow datetime.datetime.now() work? Please help.
I remember Kenneth said that if we don't create an instance of class then we cannot directly call its method. Then why we can call "now" method in datetime class in datetime library?
1 Answer
Chris Freeman
Treehouse Moderator 68,457 PointsThere are two types of methods in a class: class method and instance method. The instance method is the one you've mentioned and is only available after an instance of the class has been created. This is because the method manipulates or operation on a specific instance of the class.
The class method is available directly from the class and does not need an instance to operate since it does not refer to any specific instance.
datetime.datetime.now() is a class method (doc) so it needs no instance.