Decorator to inject function into call of a class

Sat Mar 13 11:38:16 EST 2010

On 13 Mar, 16:26, Patrick Maupin <pmau... at gmail.com> wrote:
> On Mar 13, 10:19 am, Jon Clements <jon... at googlemail.com> wrote:
>> > What I'd like to achieve is something similar to:
>> > @inject(B):
> >  def some_function(a, b):
> >      pass # something useful
>> So, just typing at the keyboard here, you mean something like:
>> class InjectClass(object):
>     def __init__(self, func, *args, **kw):
>         self.func = func
>         self.args = args
>         self.kw = kw
>     def __call__(self):
>         self.func(*self.args, **self.kw)
>> Or exactly what are you looking for?
>> Pat

Not quite.
Let's say I have function 'F':
def add(a, b): return a + b
And a base class of 'C' which does all the __init__ stuff or
whatever's needed,
the function 'add' should return a new class __init__'d with a and b,
but 'add'
should be the __call__ of that instance.
Hope that makes sense, and TY for your post,
Jon.

Decorator to inject function into __call__ of a class

Decorator to inject function into call of a class