How to check if an object has an attribute in Python

To check if an object has a certain attribute or not, you can use the hasattr() function.

When calling the hasattr() function, you need to pass 2 parameters: the object and the attribute name as a string.

When the attribute exists, the function returns True. Otherwise, it returns False.

Here’s an example of checking if a string has an attribute called join:

my_str = 'ABC'

print(hasattr(my_str, 'join'))  # True

You can also check if an object instantiated from a class has a certain attribute.

This example checks if the my_car object has an attribute called brand and wheels:

class Car:
    def __init__(self):
        self.brand = 'Tesla'
        self.year = 2002

my_car = Car()

print(hasattr(my_car, 'brand'))  # True
print(hasattr(my_car, 'wheels'))  # False

As you can see, the hasattr() function output can be used to further your code by including conditionals such as an if statement.

I hope this tutorial helps. Happy coding!