def is_valid(self):
        return self.is_bound and not bool(self.errors)
Installs signal handlers for handling SIGINT and SIGTERM
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-0.96/django/newforms/forms.py/BaseForm.is_valid--crossover with--dataset/ETHPy150Open bretth/django-pq/pq/worker.py/Worker._install_signal_handlers