Get decorated function object by string name

Question

def log(func):
    def wraper(*a, **kw):   
        return func(*a, **kw)
    return wraper

@log
def f():
    print 'f'


print locals()['f'] # - prints <function wraper at 0x00CBF3F0>.

How do you get the real f object (not decorator wrap)?

Answer 1

You don't.¹ Store it if you need to access it later.

def log(func):
  def wrapper(*a, **kw):
    return func(*a, **kw)
  wrapper.func = func
  return wrapper

@log
def f():
  print 'f'

print f.func

^{1 You could mess with the closure, but I can't recommend it.}

Answer 2

The functools module also provides a wraps decorator which makes sure that the wrapped function looks more like the real function: correct name, module, and docstring, for example.