On 23 May, 14:46, "Steven W. Orr" <[EMAIL PROTECTED]> wrote:
> I just discovered decorators. Very cool. My question is that I can't
> figure out how to make a decorator not be restricted to a function so it
> would also work on a method.
>
> Here's my code:
>
> def g(expr):
> def rpt(func):
> def wrapper(t):
> for ii in range(expr):
> print ii,
> func(t)
> wrapper.__name__ = func.__name__
> wrapper.__dict__ = func.__dict__
> wrapper.__doc__ = func.__doc__
> return func
> return wrapper
> return rpt
>
> @g(20)
> def f(s):
> print 's="%s"'%s
> f('Hello')
>
> It works fine, but now I want to apply the same decorator to a class
> method.
>
> class KK:
> # @g(20) This obviously doesn't work.
> def f(self, s):
> print 's= %s'%s
>
> k = KK()
> k.f('Hello')
>
> Is there a trick I need?
>
> TIA
>
> --
> Time flies like the wind. Fruit flies like a banana. Stranger things have .0.
> happened but none stranger than this. Does your driver's license say Organ ..0
> Donor?Black holes are where God divided by zero. Listen to me! We are all- 000
> individuals! What if this weren't a hypothetical question?
> steveo at syslang.net
For this kind of decorator where you don't
care about the values of the arguments you
could just use *args (and perhaps **kwargs too)?
def g(expr):
def rpt(func):
def wrapper(*args, **kwargs):
for ii in range(expr):
print ii,
func(*args, **kwargs)
wrapper.__name__ = func.__name__
wrapper.__dict__ = func.__dict__
wrapper.__doc__ = func.__doc__
return func
return wrapper
return rpt
Giles
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