Python - is there a list of decorators somewhere?

Question

I know of @staticmethod, @classmethod, and @property, but only through scattered documentation. Is there a complete list of function decorators that are built into Python?

Answer 1

I don't think so. Decorators don't differ from ordinary functions, you only call them in a fancier way.

For finding all of them try searching Built-in functions list, because as you can see in Python glossary the decorator syntax is just a syntactic sugar, as the following two definitions create equal functions (copied this example from glossary):

def f(...):
    ...
f = staticmethod(f)

@staticmethod
def f(...):

So any built-in function that returns another function can be used as a decorator. Question is - does it make sense to use it that way? :-)

functools module contains some functions that can be used as decorators, but they aren't built-ins you asked for.

Answer 2

They're not built-in, but this library of example decorators if very good.

As Abgan says, the built-in function list is probably the best place to look, although as decorators can also be implemented as classes, it's not guaranteed to be comprehensive.

Answer 3

There is j such thing as a list of all decorators. There's no list of all functions. There's no list of all classes.

Decorators are a handy tool for defining a common aspect across functions, methods or classes. There's the built-in decorators. Plus there are any number of cool and useless decorators. In the sake way there are any number of cool and useless classes.

Answer 4

Decorators aren't even required to return a function. I've used @atexit.register before.