__delete__ — Easy Examples

Descriptor protocol: called to delete an attribute on the owner class

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Implementing __delete__

Basic implementation of __delete__ in a class.

python
class Example:
    def __delete__(self):
        return "Example __delete__"

obj = Example()
print(obj)

__delete__ descriptor protocol: called to delete an attribute on the owner class. Implementing it lets you customize how Python interacts with your objects.

__delete__ in action

Seeing __delete__ called by Python's built-in operations.

python
# How Python calls __delete__ automatically
class Demo:
    def __init__(self, value):
        self.value = value

    def __delete__(self):
        print(f"__delete__ was called!")
        return self

d = Demo(42)
# This triggers __delete__:
print(d)

Python automatically calls __delete__ when you use the corresponding operator or function on your object.

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