Glossary

The glossary explains terms used in the programmer's guide which may not be generally known.

abstract class
A class of which no instances are created. It is used only as a base class for other classes. In Python, there is no formal difference between abstract and regular classes. Creating instances of abstract classes is thus possible, but not useful.
mix-in class
A class that is used as a container for methods to be inherited by other classes. There are no instances of mix-in classes.

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