import an array in python

Question

How can I import an array to python (numpy.arry) from a file and that way the file must be written if it doesn\'t already exist.

For example, save out a matrix to a

Answer 1

Another option is numpy.genfromtxt, e.g:

import numpy as np
data = np.genfromtxt("myfile.dat",delimiter=",")

This will make data a numpy array with as many rows and columns as are in your file