'mean': [np.mean(arr, axis=0).tolist(), np.mean(arr, axis=1).tolist(), np.mean(arr)], 'variance': [np.var(arr, axis=0).tolist(), np.var(arr, axis=1).tolist(), np.var ...

I want to challenge myself to see how efficiently I can process large datasets using only the Python standard library. I want to practice profiling python I want just to have fun with python :) I'll ...