Does Python have decorators in the standard library?

Question

Apart from @staticmethod and @classmethod? Most languages have some basic libraries making use of most of the language features.

It seems that

Answer 1

property is usually used as a decorator.

functools has several functions normally used as a decorator, such as total_ordering, update_wrapped, lru_cache, and wraps.

contextlib has the contextmanager decorator.

Keep in mind, you can use any function as a decorator:

@decorator
def function(): pass

is just the same as

def function(): pass
function = decorator(function)

In order to be useful, they generally need to be expecting a callable as an argument and they need to return a callable object. (property is an exception to the second part of that.)

Classes can also be decorated, in exactly the same way.

There is also a list of decorators on the Python Wiki. Some of them are in the standard library, some are not.