Search results
That's the key difference between a function and a class method. A function is floating free, unencumbered. A class (instance) method has to be aware of it's parent (and parent properties) so you need to pass the method a reference to the parent class (as self).
The self parameter is a reference to the current instance of the class, and is used to access variables that belongs to the class. It does not have to be named self , you can call it whatever you like, but it has to be the first parameter of any function in the class:
8 lip 2017 · class A (object): def __init__ (self): self.x = 'Hello' def method_a (self, foo): print self.x + ' ' + foo. ... the self variable represents the instance of the object itself. Most object-oriented languages pass this as a hidden parameter to the methods defined on an object; Python does not.
25 lip 2024 · The self keyword in Python is used to represent an instance (object) of a class. It allows you to access attributes and methods of the class in Python. It must be the first parameter of any method in the class, including the __init__ method, which is the constructor.
The self keyword is used to represent an instance (object) of the given class. In this case, the two Cat objects cat1 and cat2 have their own name and age attributes. If there was no self argument, the same class couldn't hold the information for both these objects.
11 lip 2023 · The self parameter is a special parameter that is passed to methods in Python classes. It binds the instance of the class to the method, allowing the method to access and modify the attributes and methods of the class instance. Properly utilizing self is key to writing effective Python classes.
29 lut 2024 · W języku programowania Python, słowo kluczowe self odgrywa kluczową rolę w definicji i działaniu metod wewnątrz klas. Jest to konwencja, która umożliwia dostęp do instancji obiektu w trakcie wywoływania jego metod.
