[PEAK] dispatch -- more specific

[Simon Belak]

Phillip J. Eby wrote:
 > You can easily make this so by using a rule like "isinstance(a,int) and
 > a==3", which will then be more specific than "isinstance(a,int)".
 >
 > That is, to force one condition to more specific than another, you need
 > only explicitly "and" the less specific condition with the more specific
 > one.  This forces it to be more specific by construction, even if
 > RuleDispatch could not otherwise infer the implication.
 >
 >

This is how I am doing it now, but it feels a bit messy (or probably 
dispatch as a whole has just spoiled me ;))).

On a related note, can specialisation of a generic function be a generic 
function. For instance:

@foo.when(some_condition)
@generic.on(my_arg)
def bar(my_arg):
    ...

If so, how do I access it's methods (when())?

Thanks,
Simon