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Python

Posted by Katherina Kallis
Katherina Kallis
3,385 Points

Getters and setters

So I learnt that @property is a decorator to indicate a method that accesses an attribute and @propertyname.setter is the decorator to indicate a method that allows us to assign something to the attribute.

example

@property def Name(self) return self.name

@Name.setter def NameSetter(self, value) self.name = value

1) Does the @property create a new attribute Name if it wasn't already explicitely declared in the class?

2) If I only want a setter and no getter, should I start the getter method name with dunder? It seems to me that a setter method always needs a getter method.

1 Answer

Steven Parker
Steven Parker
229,786 Points
Steven Parker
Steven Parker
229,786 Points

A property should always have a unique name that is not used by another attribute in the class.

And while getters and setters often go together, they don't need to. You can have a setter by itself and you would still use the property name when defining it the same way.