在macOS上的Python3.6.7中,我在time subprocess.getoutput上运行了这个测试 In [11]: %timeit for _ in range(100000): x1.97 ms ± 48.4 µs per loop (mean ± std. dev. of 7 runs, 1000 loops each)
In [12]: %timeit subprocess.getoutput189 ms ± 4.27 ms per loop (mean ± std. dev. of 7 runs, 1 loop ea