About classes and OOP in Python

[Casey Hawthorne]

>I think it's important not to wrongly confuse 'OOP' with ''data hiding'
>or any other aspect you may be familiar with from Java or C++. The
>primary concept behind OOP is not buzzwords such as abstraction,
>encapsulation, polymorphism, etc etc, but the fact that your program
>consists of objects maintaining their own state, working together to
>produce the required results, as opposed to the procedural method where
>the program consists of functions that operate on a separate data set.

Isn't "inheritance" an important buzzword for OOP?
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Regards,
Casey