Python delattr()

The delattr() function in Python is used to delete an attribute from an object. It takes two parameters - the object and the name of the attribute to be deleted.

Syntax

The syntax of delattr() function is:

delattr(object, attribute)

• object: The object from which the attribute needs to be deleted.
• attribute: The attribute name as a string which needs to be deleted.

Return Value

The delattr() function doesn't return any value. It deletes the specified attribute and raises an AttributeError if the attribute does not exist.

Example

Let's see an example to understand how delattr() works:

class Student:
    def __init__(self, name, age):
        self.name = name
        self.age = age

student1 = Student("John", 25)

# Print the age attribute
print(student1.age)  # Output: 25

# Delete the age attribute
delattr(student1, "age")

# Try to access the deleted attribute
print(student1.age)  # Raises AttributeError: 'Student' object has no attribute 'age'

In the above example, we have a Student class with name and age attributes. We create an instance of the Student class and print the age attribute value. Then, we use the delattr() function to delete the age attribute. Finally, when we try to access the age attribute again, it raises an AttributeError as the attribute doesn't exist anymore.

Conclusion

The delattr() function is a useful tool in Python to delete attributes from an object. It allows you to dynamically manage the attributes of an object during runtime.