When an attribute is accessed or assigned in Python, methods that are defined as callbacks for that attribute are invoked as properties. Getter and setter methods can be implemented in a more understandable and simple manner using properties.
DEFINATION OF PYTHON PROPERTIES:
Python’s built-in “property” function is used to define properties. A getter function, a setter function, and a deleter function are the three possible arguments for the property function. When a property is accessed, its setter and deleter functions are invoked. The setter function is executed when a new value is assigned to the property.
Here is an example of how to define a property in Python:
def init(self, name):
self._name = name
@property def name(self): print("Getting name") return self._name @name.setter def name(self, value): print("Setting name") self._name = value @name.deleter def name(self): print("Deleting name") del self._name
In this illustration, a “Person” class with a “name” attribute is defined. The “_name” attribute’s value is simply returned by the getter function, while the “_name” attribute’s value is changed by the setter function. The “_name” attribute is removed by the delete function.
You can manage how attributes are accessed and modified by utilizing properties in this manner without disclosing your class’s internal implementation information.
When working with classes whose attributes depend on other qualities, properties are very helpful. You can define a “area” property that determines the area of the rectangle based on the current values of “width” and “height,” for instance, if you have a “Rectangle” class with “width” and “height” attributes.
In conclusion, Python properties are an effective tool that let you write getter and setter functions in a clearer, more readable manner. You can manage how characteristics are accessible and changed by utilising properties, without disclosing your class’s internal implementation details. When working with classes whose attributes depend on other qualities, properties are very helpful.