Nitpick: that creates a list, not an array. It could be faster, but it's not the same benchmark. When you get to the point where the speed of loops matters it's

Nitpick: that creates a list, not an array. It could be faster, but it's not the same benchmark. When you get to the point where the speed of loops matters it's better to reach for Cython, Numba, PyPy, etc.