Python setattr()

setattr() Syntax

The syntax of the setattr() function is:

setattr(object, name, value)

If you want to get the attribute of an object, use getattr().

setattr() Parameters

The setattr() function takes three parameters:

• object - object whose attribute has to be set
• name - attribute name
• value - value given to the attribute

setattr() Return Value

The setattr() method returns None.

Example 1: How setattr() works in Python?

Output

Before modification: Adam
After modification: John

Example 2: When the attribute is not found in setattr()

If the attribute is not found, setattr() creates a new attribute an assigns value to it. However, this is only possible if the object implements the __dict__() method.

You can check all the attributes of an object by using the dir() function.

Output

Name is: John
Age is: 23