Decorator Base Class: Needs improvement.

[Steve Holden]

Ron_Adam wrote:
> Ok, that post may have a few(dozen?) problems in it.  I got glitched
> by idles not clearing variables between runs, so it worked for me
> because it was getting values from a previous run.
> 
> This should work better,  fixed a few things, too.
> 
> The decorators can now take more than one argument.
> The function and arguments lists initialize correctly now.
> 
Ron:

I've followed your attempts to understand decorators with interest, and 
have seen you engage in conversation with many luminaries of the Python 
community, so I hesitate at this point to interject my own remarks.

In a spirit of helpfulness, however, I have to ask whether your 
understanding of decorators is different from mine because you don't 
understand them or because I don't.

You have several times mentioned the possibility of a decorator taking 
more than one argument, but in my understanding of decorators this just 
wouldn't make sense. A decorator should (shouldn't it) take precisely 
one argument (a function or a method) and return precisely one value (a 
decorated function or method).

> It doesn't work with functions with more than one variable.  It seems
> tuples don't unpack when given to a function as an argument.  Any way
> to force it?
> 
> 
> class Decorator(object):
[...]

Perhaps we need to get back to basics?

Do you understand what I mean when I say a decorator should take one 
function as its argument and it should return a function?

regards
  Steve
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