#!/usr/bin/env python

import random
import numpy as np
np.set_printoptions(threshold='nan')

from shogun.Classifier import *

def main():

    raw_labels  = [random.choice([0.0, 1.0]) for r in range(100)]
    test_labels = Labels(np.array(raw_labels, dtype=np.double))

if __name__ == "__main__":
    main()

################################################################################

Output:
> python eval.py
Traceback (most recent call last):
  File "eval.py", line 24, in <module>
    main()
  File "eval.py", line 21, in main
    test_labels = Labels(np.array(raw_labels, dtype=np.double))
TypeError: Cannot create new instances of type 'Labels'