Python Numpy – NumPy array to text file

In this post we will be creating a Python script that will transfer the contents of a Numpy array to a text file. To do this we will be using the Numpy ‘savetxt()’ function which will save an existing array to a text file.

See below where we create our Numpy array for this example. Our array contains three columns with three rows of data.

import numpy

Array = numpy.asarray([ [1,2,3,4,5],
                        [101,102,103,104,105],
                        [661,662,663,664,665] ])

To transfer our array above to a text file we would use the snippet of code below. Adding a comma as a delimiter will make it easier to transfer this data back in to Numpy if ever required.

numpy.savetxt("numpy.txt", Array, delimiter=",")

The code in full for this project can be seen below.

import numpy

Array = numpy.asarray([ [1,2,3,4,5],
                        [101,102,103,104,105],
                        [661,662,663,664,665] ])

numpy.savetxt("numpy.txt", Array, delimiter=",")

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