thanks Steven..that was very helpful..thanks a lot
harry
> Since __new__ is called before the instance exists, it doesn't receive an
> instance as the first argument. Instead it receives the class. While you
> can call the parameter anything you like, it is conventional to call it
> cls rather than self.
>
>
> Try this instead:
>
> class Singleton(object):
> _instance = None
> def __new__(cls, *args, **kwargs):
> if not cls._instance:
> cls._instance = super(Singleton, self).__new__(cls)
> # or if you prefer: object.__new__(cls)
> return cls._instance
>
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