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#!/usr/bin/python
import array as arr
import numpy as np
a = arr.array('i', [10,4,1,8,12,3])
b = [10,4,1,8,12,3]
print(a)
print(b)
print(a[slice(0,2,5)])
# -------------------------------------------------
B = np.array(b)
R = B[np.array([0,2,5])]
R.sort()
B[np.array([0,2,5])] = R
print(" Result: ", R )
print(" Result: ", B )
# -------------------------------------------------
# Create a sequence of integers from 10 to 1 with a step of -2
# a = np.arange(10, 1, -2)
# print("\n A sequential array with a negative step: \n",a)
# Indexes are specified inside the np.array method.
# newarr = a[np.array([3, 1, 2 ])]
# print("\n Elements at these indices are:\n",newarr)
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