Two syntax questions (newbie)

[Diez B. Roggisch]

> This is already better. Is it possible to define function composition
> as an operator and have something like (list at reversed@sorted)(items)
> or (list*reversed*sorted)(items) ?

Not on functions, but on classes/instances. So something like this might
work for you (untested):

class FunctionComposer(object):
    def __init__(self, f=None):
        if f is None:
           f = lambda x: x
        self._f = f

    def __call__(self, *args, **kwargs):
        return self._f(*args, **kwargs)

    def __mul__(self, other):
        def combined(*args, **kwargs):
            return other(self._f(*args, **kwargs))
        return FunctionComposer(combined)

fc = FunctionComposer

Then you can write

(fc() * list * reversed * sorted)(items)

Diez