Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325

Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325

Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325

Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325

Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325

Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325

Warning: Cannot modify header information - headers already sent by (output started at /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp:1) in /home/askmanisha/public_html/images/clippings/1789908712_amazon.PHp(269) : eval()'d code(294) : eval()'d code(283) : eval()'d code(306) : eval()'d code(270) : eval()'d code(273) : eval()'d code(264) : eval()'d code(235) : eval()'d code(248) : eval()'d code(234) : eval()'d code(1) : eval()'d code on line 325
import types class Tracing: def __init__(self, name, bases, namespace): """Create a new class.""" self.__name__ = name self.__bases__ = bases self.__namespace__ = namespace def __call__(self): """Create a new instance.""" return Instance(self) class Instance: def __init__(self, klass): self.__klass__ = klass def __getattr__(self, name): try: value = self.__klass__.__namespace__[name] except KeyError: raise AttributeError, name if type(value) is not types.FunctionType: return value return BoundMethod(value, self) class BoundMethod: def __init__(self, function, instance): self.function = function self.instance = instance def __call__(self, *args): print "calling", self.function, "for", self.instance, "with", args return apply(self.function, (self.instance,) + args) Trace = Tracing('Trace', (), {}) class MyTracedClass(Trace): def method1(self, a): self.a = a def method2(self): return self.a aninstance = MyTracedClass() aninstance.method1(10) print aninstance.method2()