Is there a way to tell an instance was saved without checking instalce.pk or doing a db lookup?

[Sergiy]

To check if the instance was saved one might do something like this:

def is_instance_saved(instance):
    if instance.pk is None:
        return False
    # in case pk was set manually
    try:
        instance.__class__.objects.get(pk=instance.pk)
    except ObjectDoesNotExist:
        return False
    return True

I wonder if the instance already knows whether it was saved or not (through 
some sort of private attribute).

Thanks
Sergiy

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