def clean_timestamp(self):
        ts = self.cleaned_data["timestamp"]
        if time.time() - ts > (2 * 60 * 60):
            raise forms.ValidationError("Timestamp check failed")
        return ts
Returns with a known face's name
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/django/contrib/comments/forms.py/CommentSecurityForm.clean_timestamp--crossover with--dataset/ETHPy150Open anandology/pyjamas/library/pyjamas/ui/CustomButton.py/Face.getName