python shuffle two lists together

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Jona
27 Mar 2017
1# Example usage using random:
2import random
3# Say you want to shuffle (randomly reorder) the following lists in the
4# same way (e.g. because there's an association between the elements that
5# you want to maintain):
6your_list_1 = ['the', 'original', 'order']
7your_list_2 = [1, 2, 3]
8
9# Steps to shuffle:
10joined_lists = list(zip(your_list_1, your_list_2))
11random.shuffle(joined_lists) # Shuffle "joined_lists" in place
12your_list_1, your_list_2 = zip(*joined_lists) # Undo joining
13print(your_list_1)
14print(your_list_2)
15--> ('the', 'order', 'original') # Both lists shuffled in the same way
16--> (1, 3, 2) # Use list(your_list_2) to convert to list
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Simón
11 Apr 2017
1from sklearn.utils import shuffle
2a_shuffled, b_shuffled = shuffle(np.array(a), np.array(b))
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