@classmethod
    def open(cls, a, b):
        return cls(a, b, True, True)
L{UnixApplicationRunner.setupEnvironment} changes the process umask to
dataset/ETHPy150Open sympy/sympy/sympy/sets/sets.py/Interval.open--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/test/test_twistd.py/UnixApplicationRunnerSetupEnvironmentTests.test_umask