Simple technique to do shuffling when the order can be random

simple_shuffle.py

# Simple technique to do shuffling when the order can be random
import random
import torch
# generate 1-D array with 10 elements. With numbers ranging from 0 to 20
x = torch.randn(10) * 20 
x.round_() # in-place rounding. Note the "_" suffix for "round" function.
indexes = list(range(len(x))) # Get the array indices
print(indexes); # [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
# set some random seed to reproduce the results correctly.
#Feel free to comment this line. Run the code and observe the output
random.seed(10); 
random.shuffle(indexes); # in-place data shuffling
print(indexes); # [5, 2, 7, 1, 8, 4, 3, 6, 0, 9]