Let's take a sample class.
class Book: def __init__(self, title, author): self.title = title self.author = author book1 = Book(title="Right Ho, Jeeves", author="P.G. Wodehouse")
In Python you can access the attribute title of the class using the dot notation.
>>> book1.title 'P.G. Wodehouse'
If an attribute doesn't exist, Python throws an error:
>>> book1.series Traceback (most recent call last): File "<stdin>", line 1, in <module> AttributeError: 'Book' object has no attribute 'series'