Convert String of an int array to a Numpy array of ints

[SheeppOSU]

I think it would be easier to do something like this:

import numpy as np
import json

testImage = np.random.randint(0, 255, 10*1000)
metadata = ""
data = {"image": testImage, "metadata": metadata}
string_data = json.dumps(data)  # a string format of the data

# Receiving end
data = json.loads(string_data)
metadata = data["metadata"]
image = data["image"]