Dump a NumPy array into a csv file

Question

Is there a way to dump a NumPy array into a CSV file? I have a 2D NumPy array and need to dump it in human-readable format.

Answer 1

You can also do it with pure python without using any modules.

# format as a block of csv text to do whatever you want
csv_rows = ["{},{}".format(i, j) for i, j in array]
csv_text = "\n".join(csv_rows)

# write it to a file
with open('file.csv', 'w') as f:
    f.write(csv_text)