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  1. import timeit
  2.  
  3. print(timeit.timeit("list_1[:][:]", 
  4.       setup="list_1 = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]"))
  5.  
  6. print(timeit.timeit("list_2[:,]", 
  7.       setup="import numpy as np; list_2 = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])"))
Success #stdin #stdout 0.36s 92736KB
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0.1302607785910368
0.1592536810785532
https://ideone.com/X5iT4H
language:
Python 3 (python  3.9.5)
created:
7 years ago
visibility:
public

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