@statistic('p_value', pairwise=True, is_distribution=False, is_estimate=True)
    def get_p_value(self, key):
        return (self.get_diff_means(key) > 0).mean()
Daemonize process by doing Stevens double fork.
dataset/ETHPy150Open HHammond/kcbo/kcbo/statistical_tests/t_test.py/TTest.get_p_value--crossover with--dataset/ETHPy150Open openstack/neutron/neutron/agent/linux/daemon.py/Daemon.daemonize