merge & de-duplicate lists

[anton muhin]

Alan Little wrote:
> def f (listOfObjects, method) :
>     for o in listOfObjects :
>         o.method # passed method gets invoked on the instances   
> 
> l = [a,b,c] # collection of objects of known class C
> result = f(l, C.method) # call with method of the class
> 

Maybe the following might interest you:

1.

class A(object):
     def fooA(self):
         return "fooA"

class B(object):
     def fooB(self):
         return "fooB"

a, b = A(), B()

invoke_fooA = lambda obj: obj.fooA()
invoke_fooB = lambda obj: obj.fooB()

print invoke_fooA(a)
ptin invoke_fooB(b)

2. If the class is the same you can use:

class A(object):
      def foo(self):
           return "A.foo"

method = A.foo

a = A()

print method(a)

HTH,
anton.