Shuffle two list at once with same order

Question

I\'m using the nltk library\'s movie_reviews corpus which contains a large number of documents. My task is get predictive performance of these reviews

Answer 1

Easy and fast way to do this is to use random.seed() with random.shuffle() . It lets you generate same random order many times you want. It will look like this:

a = [1, 2, 3, 4, 5]
b = [6, 7, 8, 9, 10]
seed = random.random()
random.seed(seed)
a.shuffle()
random.seed(seed)
b.shuffle()
print(a)
print(b)

>>[3, 1, 4, 2, 5]
>>[8, 6, 9, 7, 10]

This also works when you can't work with both lists at the same time, because of memory problems.