Python delattr() Builtin Function – Examples

Python delattr()

Python delattr(object, name) deletes the named argument with the given name from the object.

In this tutorial, we will learn about the syntax of Python delattr() function, and learn how to use this function with the help of examples.

Syntax

The syntax of delattr() function is

delattr(object, name)

where

Parameter	Required/Optional	Description
object	Required	A Python object.
name	Required	A string.

Note: The function removes the attribute if and only if the object allows this operation.

Returns

The function returns None.

Example

In this example, we will define a class X with three attributes a, b and c. First we shall print the attributes for X, then delete the attribute c, and print the attributes of X.

We will use dir() builtin function to print the attributes of X.

Python Program

class X:
    a = 1
    b = 2
    c = 3

print('Attributes in X before deleting c attribute')
for attr in dir(X):
    if '__' not in attr:
        print(attr)

delattr(X, 'c')
print('Attributes in X after deleting c attribute')
for attr in dir(X):
    if '__' not in attr:
        print(attr)

Output

Attributes in X before deleting c attribute
a
b
c
Attributes in X after deleting c attribute
a
b

Conclusion

In this Python Tutorial, we have learnt the syntax of Python delattr() builtin function, and also learned how to use this function, with the help of Python example programs.