Classes can be decorated

Classes can be decorated in the same way as functions. The underlying pattern for decorating is the assignment to the same name after going through a decorator:

fn = decorator(fn)

Classes are also objects, so they can be passed around in a similar fashion:

Cls = decorator(Cls)

As it turns out, the at sign @ syntax for decorators is also support by class definitions, so classes can be decorated when defined:

@decorator
class Cls:
    ...

This is equivalent to

class Cls:
    ...

Cls = decorator(Cls)

Now you know that it is possible to decorate a class… But should you do it? There are good use-cases for decorators for classes, but there is one thing that you must understand about decorated classes first.