Python hasattr() usage and examples

Python built-in functions

If the object has the given named attribute, the hasattr() method returns true, otherwise it returns false.

The syntax of the hasattr() method is:

hasattr(object, name)

The hasattr() method is called by getattr() to check whether AttributeError is raised.

hasattr() parameters

The hasattr() method takes two parameters:

• object -The object to check for named attributes

• name -The name of the property to search for

hasattr() return value

The hasattr() method returns:

• TrueIf the object has the given defined attribute

• FalseIf the object does not have the given defined attribute

Example: How does hasattr() work in Python?

class Person:
　　　　age =　23
　　　　name = 'Adam'
person = Person()
print('Person has an age attribute?:', hasattr(person, 'age'))
print('Person has a salary attribute?:', hasattr(person, 'salary'))

When running the program, the output is:

Person has an age attribute?: True
Person has a salary attribute?: False

Python built-in functions