class x(object):
    def __init__(self):
        self._func = None

    def __getattr__(self, name):
        self._func = lambda *a, **kw: lambda x: getattr(x, name)(*a, **kw)
        return self

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

X = x()

print " ".join(map(X.upper(), ["hello", "world"]))
print " ".join(map(X.encode("hex"), ["hello", "world"]))