Python’s magic method __delete__() is called to delete an instance’s attribute. For example, the expression del my_obj.attr would result in attr.__delete__(my_obj), so you’d give the attribute itself the responsibility for its deletion on my_obj.
We call this a “Dunder Method” for “Double Underscore Method” (also called “magic method”). To get a list of all dunder methods with explanation, check out our dunder cheat sheet article on this blog.
Syntax and Example
object.__delete__(self, instance)Let’s have a look at an example:
class My_Attribute:
def __delete__(self, instance):
print('hello world')
class MyClass:
attr = My_Attribute()
my_obj = MyClass()
del my_obj.attr
# hello worldReferences:
Where to Go From Here?
Enough theory. Let’s get some practice!
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