python method missing

proxy.py

class Proxy(object):

    def __init__(self, target):
        self.target = target

    def __getattr__(self, name):
        print "calling: ", name
        return (lambda *x: self._call(*x))

    def _call(self, *args):
        print "with args: ", args
        print "closure value:", self.target

p  = Proxy("hello")
p.test("tomcat", 2, 4, True, [])