That is how to effectively create arrays in Python. However, there are other options for arrays too. One example is to create a CSV file, which you can learn to do in our quick guide .

It is possible to use generic Python objects as the dtype for a NumPy array, but if you do this, you’ll get no better performance with NumPy than you would with Python generally.

Gommers added, "Really long-term I expect the NumPy 'execution engine' (i.e., the C and Python code that does the heavy lifting for fast array operations) to become less and less relevant, and the ...