Create a 5 x 5 matrix using Nested list comprehensions

Question

Matrices can be represented as a list of lists in Python.

For example a 5 x 5 matrix with values 0 to 4 in each row can be written as:

matrix = [[0, 1, 2, 3, 4],
          [0, 1, 2, 3, 4],
          [0, 1, 2, 3, 4],
          [0, 1, 2, 3, 4],
          [0, 1, 2, 3, 4]]

How to recreate this matrix by using nested listed comprehensions?

Here is my code:

num = [[num1,num2,num3,num4,num5] for num1 in range(5) for num2 in range(5)for num3 in range(5)for num4 in range(5)for num5 in range(5)]

And it produce the following output:

[[0, 0, 0, 0, 0],
 [0, 0, 0, 0, 1],
 [0, 0, 0, 0, 2],
 [0, 0, 0, 0, 3],
 [0, 0, 0, 0, 4],
 [0, 0, 0, 1, 0],
 [0, 0, 0, 1, 1],
 [0, 0, 0, 1, 2],
 [0, 0, 0, 1, 3],
 [0, 0, 0, 1, 4],
 [0, 0, 0, 2, 0],
 [0, 0, 0, 2, 1],
 [0, 0, 0, 2, 2],
 [0, 0, 0, 2, 3],
 [0, 0, 0, 2, 4],
 [0, 0, 0, 3, 0],
 [0, 0, 0, 3, 1],
 [0, 0, 0, 3, 2],
 [0, 0, 0, 3, 3],
 [0, 0, 0, 3, 4],
 [0, 0, 0, 4, 0],
 [0, 0, 0, 4, 1],
 [0, 0, 0, 4, 2],
 [0, 0, 0, 4, 3],
 [0, 0, 0, 4, 4],
 [0, 0, 1, 0, 0],
 [0, 0, 1, 0, 1],
 [0, 0, 1, 0, 2],
 [0, 0, 1, 0, 3],
 [0, 0, 1, 0, 4],
 [0, 0, 1, 1, 0],
 [0, 0, 1, 1, 1],
 [0, 0, 1, 1, 2],
 [0, 0, 1, 1, 3],
 [0, 0, 1, 1, 4],
 [0, 0, 1, 2, 0],
 [0, 0, 1, 2, 1],
 [0, 0, 1, 2, 2],
 [0, 0, 1, 2, 3],
 [0, 0, 1, 2, 4],
 [0, 0, 1, 3, 0],
 [0, 0, 1, 3, 1],
 [0, 0, 1, 3, 2],
 [0, 0, 1, 3, 3],
 [0, 0, 1, 3, 4],
 [0, 0, 1, 4, 0],
 [0, 0, 1, 4, 1],
 [0, 0, 1, 4, 2],
 [0, 0, 1, 4, 3],
 [0, 0, 1, 4, 4],
 [0, 0, 2, 0, 0],
 [0, 0, 2, 0, 1],
 [0, 0, 2, 0, 2],
 [0, 0, 2, 0, 3],
 [0, 0, 2, 0, 4],
 [0, 0, 2, 1, 0],
 [0, 0, 2, 1, 1],
 [0, 0, 2, 1, 2],
 [0, 0, 2, 1, 3],
 [0, 0, 2, 1, 4],
 [0, 0, 2, 2, 0],
 [0, 0, 2, 2, 1],
 [0, 0, 2, 2, 2],
 [0, 0, 2, 2, 3],
 [0, 0, 2, 2, 4],
 [0, 0, 2, 3, 0],
 [0, 0, 2, 3, 1],
 [0, 0, 2, 3, 2],
 [0, 0, 2, 3, 3],
 [0, 0, 2, 3, 4],
 [0, 0, 2, 4, 0],
 [0, 0, 2, 4, 1],
 [0, 0, 2, 4, 2],
 [0, 0, 2, 4, 3],
 [0, 0, 2, 4, 4],
 [0, 0, 3, 0, 0],
 [0, 0, 3, 0, 1],
 [0, 0, 3, 0, 2],
 [0, 0, 3, 0, 3],
 [0, 0, 3, 0, 4],
 [0, 0, 3, 1, 0],
 [0, 0, 3, 1, 1],
 [0, 0, 3, 1, 2],
 [0, 0, 3, 1, 3],
 [0, 0, 3, 1, 4],
 [0, 0, 3, 2, 0],
 [0, 0, 3, 2, 1],
 [0, 0, 3, 2, 2],
 [0, 0, 3, 2, 3],
 [0, 0, 3, 2, 4],
 [0, 0, 3, 3, 0],
 [0, 0, 3, 3, 1],
 [0, 0, 3, 3, 2],
 [0, 0, 3, 3, 3],
 [0, 0, 3, 3, 4],
 [0, 0, 3, 4, 0],
 [0, 0, 3, 4, 1],
 [0, 0, 3, 4, 2],
 [0, 0, 3, 4, 3],
 [0, 0, 3, 4, 4],
 [0, 0, 4, 0, 0],
 [0, 0, 4, 0, 1],
 [0, 0, 4, 0, 2],
 [0, 0, 4, 0, 3],
 [0, 0, 4, 0, 4],
 [0, 0, 4, 1, 0],
 [0, 0, 4, 1, 1],
 [0, 0, 4, 1, 2],
 [0, 0, 4, 1, 3],
 [0, 0, 4, 1, 4],
 [0, 0, 4, 2, 0],
 [0, 0, 4, 2, 1],
 [0, 0, 4, 2, 2],
 [0, 0, 4, 2, 3],
 [0, 0, 4, 2, 4],
 [0, 0, 4, 3, 0],
 [0, 0, 4, 3, 1],
 [0, 0, 4, 3, 2],
 [0, 0, 4, 3, 3],
 [0, 0, 4, 3, 4],
 [0, 0, 4, 4, 0],
 [0, 0, 4, 4, 1],
 [0, 0, 4, 4, 2],
 [0, 0, 4, 4, 3],
 [0, 0, 4, 4, 4],
 [0, 1, 0, 0, 0],
 [0, 1, 0, 0, 1],
 [0, 1, 0, 0, 2],
 [0, 1, 0, 0, 3],
 [0, 1, 0, 0, 4],
 [0, 1, 0, 1, 0],
 [0, 1, 0, 1, 1],
 [0, 1, 0, 1, 2],
 [0, 1, 0, 1, 3],
 [0, 1, 0, 1, 4],
 [0, 1, 0, 2, 0],
 [0, 1, 0, 2, 1],
 [0, 1, 0, 2, 2],
 [0, 1, 0, 2, 3],
 [0, 1, 0, 2, 4],
 [0, 1, 0, 3, 0],
 [0, 1, 0, 3, 1],
 [0, 1, 0, 3, 2],
 [0, 1, 0, 3, 3],
 [0, 1, 0, 3, 4],
 [0, 1, 0, 4, 0],
 [0, 1, 0, 4, 1],
 [0, 1, 0, 4, 2],
 [0, 1, 0, 4, 3],
 [0, 1, 0, 4, 4],
 [0, 1, 1, 0, 0],
 [0, 1, 1, 0, 1],
 [0, 1, 1, 0, 2],
 [0, 1, 1, 0, 3],
 [0, 1, 1, 0, 4],
 [0, 1, 1, 1, 0],
 [0, 1, 1, 1, 1],
 [0, 1, 1, 1, 2],
 [0, 1, 1, 1, 3],
 [0, 1, 1, 1, 4],
 [0, 1, 1, 2, 0],
 [0, 1, 1, 2, 1],
 [0, 1, 1, 2, 2],
 [0, 1, 1, 2, 3],
 [0, 1, 1, 2, 4],
 [0, 1, 1, 3, 0],
 [0, 1, 1, 3, 1],
 [0, 1, 1, 3, 2],
 [0, 1, 1, 3, 3],
 [0, 1, 1, 3, 4],
 [0, 1, 1, 4, 0],
 [0, 1, 1, 4, 1],
 [0, 1, 1, 4, 2],
 [0, 1, 1, 4, 3],
 [0, 1, 1, 4, 4],
 [0, 1, 2, 0, 0],
 [0, 1, 2, 0, 1],
 [0, 1, 2, 0, 2],
 [0, 1, 2, 0, 3],
 [0, 1, 2, 0, 4],
 [0, 1, 2, 1, 0],
 [0, 1, 2, 1, 1],
 [0, 1, 2, 1, 2],
 [0, 1, 2, 1, 3],
 [0, 1, 2, 1, 4],
 [0, 1, 2, 2, 0],
 [0, 1, 2, 2, 1],
 [0, 1, 2, 2, 2],
 [0, 1, 2, 2, 3],
 [0, 1, 2, 2, 4],
 [0, 1, 2, 3, 0],
 [0, 1, 2, 3, 1],
 [0, 1, 2, 3, 2],
 [0, 1, 2, 3, 3],
 [0, 1, 2, 3, 4],
 [0, 1, 2, 4, 0],
 [0, 1, 2, 4, 1],
 [0, 1, 2, 4, 2],
 [0, 1, 2, 4, 3],
 [0, 1, 2, 4, 4],
 [0, 1, 3, 0, 0],
 [0, 1, 3, 0, 1],
 [0, 1, 3, 0, 2],
 [0, 1, 3, 0, 3],
 [0, 1, 3, 0, 4],
 [0, 1, 3, 1, 0],
 [0, 1, 3, 1, 1],
 [0, 1, 3, 1, 2],
 [0, 1, 3, 1, 3],
 [0, 1, 3, 1, 4],
 [0, 1, 3, 2, 0],
 [0, 1, 3, 2, 1],
 [0, 1, 3, 2, 2],
 [0, 1, 3, 2, 3],
 [0, 1, 3, 2, 4],
 [0, 1, 3, 3, 0],
 [0, 1, 3, 3, 1],
 [0, 1, 3, 3, 2],
 [0, 1, 3, 3, 3],
 [0, 1, 3, 3, 4],
 [0, 1, 3, 4, 0],
 [0, 1, 3, 4, 1],
 [0, 1, 3, 4, 2],
 [0, 1, 3, 4, 3],
 [0, 1, 3, 4, 4],
 [0, 1, 4, 0, 0],
 [0, 1, 4, 0, 1],
 [0, 1, 4, 0, 2],
 [0, 1, 4, 0, 3],
 [0, 1, 4, 0, 4],
 [0, 1, 4, 1, 0],
 [0, 1, 4, 1, 1],
 [0, 1, 4, 1, 2],
 [0, 1, 4, 1, 3],
 [0, 1, 4, 1, 4],
 [0, 1, 4, 2, 0],
 [0, 1, 4, 2, 1],
 [0, 1, 4, 2, 2],
 [0, 1, 4, 2, 3],
 [0, 1, 4, 2, 4],
 [0, 1, 4, 3, 0],
 [0, 1, 4, 3, 1],
 [0, 1, 4, 3, 2],
 [0, 1, 4, 3, 3],
 [0, 1, 4, 3, 4],
 [0, 1, 4, 4, 0],
 [0, 1, 4, 4, 1],
 [0, 1, 4, 4, 2],
 [0, 1, 4, 4, 3],
 [0, 1, 4, 4, 4],
 [0, 2, 0, 0, 0],
 [0, 2, 0, 0, 1],
 [0, 2, 0, 0, 2],
 [0, 2, 0, 0, 3],
 [0, 2, 0, 0, 4],
 [0, 2, 0, 1, 0],
 [0, 2, 0, 1, 1],
 [0, 2, 0, 1, 2],
 [0, 2, 0, 1, 3],
 [0, 2, 0, 1, 4],
 [0, 2, 0, 2, 0],
 [0, 2, 0, 2, 1],
 [0, 2, 0, 2, 2],
 [0, 2, 0, 2, 3],
 [0, 2, 0, 2, 4],
 [0, 2, 0, 3, 0],
 [0, 2, 0, 3, 1],
 [0, 2, 0, 3, 2],
 [0, 2, 0, 3, 3],
 [0, 2, 0, 3, 4],
 [0, 2, 0, 4, 0],
 [0, 2, 0, 4, 1],
 [0, 2, 0, 4, 2],
 [0, 2, 0, 4, 3],
 [0, 2, 0, 4, 4],
 [0, 2, 1, 0, 0],
 [0, 2, 1, 0, 1],
 [0, 2, 1, 0, 2],
 [0, 2, 1, 0, 3],
 [0, 2, 1, 0, 4],
 [0, 2, 1, 1, 0],
 [0, 2, 1, 1, 1],
 [0, 2, 1, 1, 2],
 [0, 2, 1, 1, 3],
 [0, 2, 1, 1, 4],
 [0, 2, 1, 2, 0],
 [0, 2, 1, 2, 1],
 [0, 2, 1, 2, 2],
 [0, 2, 1, 2, 3],
 [0, 2, 1, 2, 4],
 [0, 2, 1, 3, 0],
 [0, 2, 1, 3, 1],
 [0, 2, 1, 3, 2],
 [0, 2, 1, 3, 3],
 [0, 2, 1, 3, 4],
 [0, 2, 1, 4, 0],
 [0, 2, 1, 4, 1],
 [0, 2, 1, 4, 2],
 [0, 2, 1, 4, 3],
 [0, 2, 1, 4, 4],
 [0, 2, 2, 0, 0],
 [0, 2, 2, 0, 1],
 [0, 2, 2, 0, 2],
 [0, 2, 2, 0, 3],
 [0, 2, 2, 0, 4],
 [0, 2, 2, 1, 0],
 [0, 2, 2, 1, 1],
 [0, 2, 2, 1, 2],
 [0, 2, 2, 1, 3],
 [0, 2, 2, 1, 4],
 [0, 2, 2, 2, 0],
 [0, 2, 2, 2, 1],
 [0, 2, 2, 2, 2],
 [0, 2, 2, 2, 3],
 [0, 2, 2, 2, 4],
 [0, 2, 2, 3, 0],
 [0, 2, 2, 3, 1],
 [0, 2, 2, 3, 2],
 [0, 2, 2, 3, 3],
 [0, 2, 2, 3, 4],
 [0, 2, 2, 4, 0],
 [0, 2, 2, 4, 1],
 [0, 2, 2, 4, 2],
 [0, 2, 2, 4, 3],
 [0, 2, 2, 4, 4],
 [0, 2, 3, 0, 0],
 [0, 2, 3, 0, 1],
 [0, 2, 3, 0, 2],
 [0, 2, 3, 0, 3],
 [0, 2, 3, 0, 4],
 [0, 2, 3, 1, 0],
 [0, 2, 3, 1, 1],
 [0, 2, 3, 1, 2],
 [0, 2, 3, 1, 3],
 [0, 2, 3, 1, 4],
 [0, 2, 3, 2, 0],
 [0, 2, 3, 2, 1],
 [0, 2, 3, 2, 2],
 [0, 2, 3, 2, 3],
 [0, 2, 3, 2, 4],
 [0, 2, 3, 3, 0],
 [0, 2, 3, 3, 1],
 [0, 2, 3, 3, 2],
 [0, 2, 3, 3, 3],
 [0, 2, 3, 3, 4],
 [0, 2, 3, 4, 0],
 [0, 2, 3, 4, 1],
 [0, 2, 3, 4, 2],
 [0, 2, 3, 4, 3],
 [0, 2, 3, 4, 4],
 [0, 2, 4, 0, 0],
 [0, 2, 4, 0, 1],
 [0, 2, 4, 0, 2],
 [0, 2, 4, 0, 3],
 [0, 2, 4, 0, 4],
 [0, 2, 4, 1, 0],
 [0, 2, 4, 1, 1],
 [0, 2, 4, 1, 2],
 [0, 2, 4, 1, 3],
 [0, 2, 4, 1, 4],
 [0, 2, 4, 2, 0],
 [0, 2, 4, 2, 1],
 [0, 2, 4, 2, 2],
 [0, 2, 4, 2, 3],
 [0, 2, 4, 2, 4],
 [0, 2, 4, 3, 0],
 [0, 2, 4, 3, 1],
 [0, 2, 4, 3, 2],
 [0, 2, 4, 3, 3],
 [0, 2, 4, 3, 4],
 [0, 2, 4, 4, 0],
 [0, 2, 4, 4, 1],
 [0, 2, 4, 4, 2],
 [0, 2, 4, 4, 3],
 [0, 2, 4, 4, 4],
 [0, 3, 0, 0, 0],
 [0, 3, 0, 0, 1],
 [0, 3, 0, 0, 2],
 [0, 3, 0, 0, 3],
 [0, 3, 0, 0, 4],
 [0, 3, 0, 1, 0],
 [0, 3, 0, 1, 1],
 [0, 3, 0, 1, 2],
 [0, 3, 0, 1, 3],
 [0, 3, 0, 1, 4],
 [0, 3, 0, 2, 0],
 [0, 3, 0, 2, 1],
 [0, 3, 0, 2, 2],
 [0, 3, 0, 2, 3],
 [0, 3, 0, 2, 4],
 [0, 3, 0, 3, 0],
 [0, 3, 0, 3, 1],
 [0, 3, 0, 3, 2],
 [0, 3, 0, 3, 3],
 [0, 3, 0, 3, 4],
 [0, 3, 0, 4, 0],
 [0, 3, 0, 4, 1],
 [0, 3, 0, 4, 2],
 [0, 3, 0, 4, 3],
 [0, 3, 0, 4, 4],
 [0, 3, 1, 0, 0],
 [0, 3, 1, 0, 1],
 [0, 3, 1, 0, 2],
 [0, 3, 1, 0, 3],
 [0, 3, 1, 0, 4],
 [0, 3, 1, 1, 0],
 [0, 3, 1, 1, 1],
 [0, 3, 1, 1, 2],
 [0, 3, 1, 1, 3],
 [0, 3, 1, 1, 4],
 [0, 3, 1, 2, 0],
 [0, 3, 1, 2, 1],
 [0, 3, 1, 2, 2],
 [0, 3, 1, 2, 3],
 [0, 3, 1, 2, 4],
 [0, 3, 1, 3, 0],
 [0, 3, 1, 3, 1],
 [0, 3, 1, 3, 2],
 [0, 3, 1, 3, 3],
 [0, 3, 1, 3, 4],
 [0, 3, 1, 4, 0],
 [0, 3, 1, 4, 1],
 [0, 3, 1, 4, 2],
 [0, 3, 1, 4, 3],
 [0, 3, 1, 4, 4],
 [0, 3, 2, 0, 0],
 [0, 3, 2, 0, 1],
 [0, 3, 2, 0, 2],
 [0, 3, 2, 0, 3],
 [0, 3, 2, 0, 4],
 [0, 3, 2, 1, 0],
 [0, 3, 2, 1, 1],
 [0, 3, 2, 1, 2],
 [0, 3, 2, 1, 3],
 [0, 3, 2, 1, 4],
 [0, 3, 2, 2, 0],
 [0, 3, 2, 2, 1],
 [0, 3, 2, 2, 2],
 [0, 3, 2, 2, 3],
 [0, 3, 2, 2, 4],
 [0, 3, 2, 3, 0],
 [0, 3, 2, 3, 1],
 [0, 3, 2, 3, 2],
 [0, 3, 2, 3, 3],
 [0, 3, 2, 3, 4],
 [0, 3, 2, 4, 0],
 [0, 3, 2, 4, 1],
 [0, 3, 2, 4, 2],
 [0, 3, 2, 4, 3],
 [0, 3, 2, 4, 4],
 [0, 3, 3, 0, 0],
 [0, 3, 3, 0, 1],
 [0, 3, 3, 0, 2],
 [0, 3, 3, 0, 3],
 [0, 3, 3, 0, 4],
 [0, 3, 3, 1, 0],
 [0, 3, 3, 1, 1],
 [0, 3, 3, 1, 2],
 [0, 3, 3, 1, 3],
 [0, 3, 3, 1, 4],
 [0, 3, 3, 2, 0],
 [0, 3, 3, 2, 1],
 [0, 3, 3, 2, 2],
 [0, 3, 3, 2, 3],
 [0, 3, 3, 2, 4],
 [0, 3, 3, 3, 0],
 [0, 3, 3, 3, 1],
 [0, 3, 3, 3, 2],
 [0, 3, 3, 3, 3],
 [0, 3, 3, 3, 4],
 [0, 3, 3, 4, 0],
 [0, 3, 3, 4, 1],
 [0, 3, 3, 4, 2],
 [0, 3, 3, 4, 3],
 [0, 3, 3, 4, 4],
 [0, 3, 4, 0, 0],
 [0, 3, 4, 0, 1],
 [0, 3, 4, 0, 2],
 [0, 3, 4, 0, 3],
 [0, 3, 4, 0, 4],
 [0, 3, 4, 1, 0],
 [0, 3, 4, 1, 1],
 [0, 3, 4, 1, 2],
 [0, 3, 4, 1, 3],
 [0, 3, 4, 1, 4],
 [0, 3, 4, 2, 0],
 [0, 3, 4, 2, 1],
 [0, 3, 4, 2, 2],
 [0, 3, 4, 2, 3],
 [0, 3, 4, 2, 4],
 [0, 3, 4, 3, 0],
 [0, 3, 4, 3, 1],
 [0, 3, 4, 3, 2],
 [0, 3, 4, 3, 3],
 [0, 3, 4, 3, 4],
 [0, 3, 4, 4, 0],
 [0, 3, 4, 4, 1],
 [0, 3, 4, 4, 2],
 [0, 3, 4, 4, 3],
 [0, 3, 4, 4, 4],
 [0, 4, 0, 0, 0],
 [0, 4, 0, 0, 1],
 [0, 4, 0, 0, 2],
 [0, 4, 0, 0, 3],
 [0, 4, 0, 0, 4],
 [0, 4, 0, 1, 0],
 [0, 4, 0, 1, 1],
 [0, 4, 0, 1, 2],
 [0, 4, 0, 1, 3],
 [0, 4, 0, 1, 4],
 [0, 4, 0, 2, 0],
 [0, 4, 0, 2, 1],
 [0, 4, 0, 2, 2],
 [0, 4, 0, 2, 3],
 [0, 4, 0, 2, 4],
 [0, 4, 0, 3, 0],
 [0, 4, 0, 3, 1],
 [0, 4, 0, 3, 2],
 [0, 4, 0, 3, 3],
 [0, 4, 0, 3, 4],
 [0, 4, 0, 4, 0],
 [0, 4, 0, 4, 1],
 [0, 4, 0, 4, 2],
 [0, 4, 0, 4, 3],
 [0, 4, 0, 4, 4],
 [0, 4, 1, 0, 0],
 [0, 4, 1, 0, 1],
 [0, 4, 1, 0, 2],
 [0, 4, 1, 0, 3],
 [0, 4, 1, 0, 4],
 [0, 4, 1, 1, 0],
 [0, 4, 1, 1, 1],
 [0, 4, 1, 1, 2],
 [0, 4, 1, 1, 3],
 [0, 4, 1, 1, 4],
 [0, 4, 1, 2, 0],
 [0, 4, 1, 2, 1],
 [0, 4, 1, 2, 2],
 [0, 4, 1, 2, 3],
 [0, 4, 1, 2, 4],
 [0, 4, 1, 3, 0],
 [0, 4, 1, 3, 1],
 [0, 4, 1, 3, 2],
 [0, 4, 1, 3, 3],
 [0, 4, 1, 3, 4],
 [0, 4, 1, 4, 0],
 [0, 4, 1, 4, 1],
 [0, 4, 1, 4, 2],
 [0, 4, 1, 4, 3],
 [0, 4, 1, 4, 4],
 [0, 4, 2, 0, 0],
 [0, 4, 2, 0, 1],
 [0, 4, 2, 0, 2],
 [0, 4, 2, 0, 3],
 [0, 4, 2, 0, 4],
 [0, 4, 2, 1, 0],
 [0, 4, 2, 1, 1],
 [0, 4, 2, 1, 2],
 [0, 4, 2, 1, 3],
 [0, 4, 2, 1, 4],
 [0, 4, 2, 2, 0],
 [0, 4, 2, 2, 1],
 [0, 4, 2, 2, 2],
 [0, 4, 2, 2, 3],
 [0, 4, 2, 2, 4],
 [0, 4, 2, 3, 0],
 [0, 4, 2, 3, 1],
 [0, 4, 2, 3, 2],
 [0, 4, 2, 3, 3],
 [0, 4, 2, 3, 4],
 [0, 4, 2, 4, 0],
 [0, 4, 2, 4, 1],
 [0, 4, 2, 4, 2],
 [0, 4, 2, 4, 3],
 [0, 4, 2, 4, 4],
 [0, 4, 3, 0, 0],
 [0, 4, 3, 0, 1],
 [0, 4, 3, 0, 2],
 [0, 4, 3, 0, 3],
 [0, 4, 3, 0, 4],
 [0, 4, 3, 1, 0],
 [0, 4, 3, 1, 1],
 [0, 4, 3, 1, 2],
 [0, 4, 3, 1, 3],
 [0, 4, 3, 1, 4],
 [0, 4, 3, 2, 0],
 [0, 4, 3, 2, 1],
 [0, 4, 3, 2, 2],
 [0, 4, 3, 2, 3],
 [0, 4, 3, 2, 4],
 [0, 4, 3, 3, 0],
 [0, 4, 3, 3, 1],
 [0, 4, 3, 3, 2],
 [0, 4, 3, 3, 3],
 [0, 4, 3, 3, 4],
 [0, 4, 3, 4, 0],
 [0, 4, 3, 4, 1],
 [0, 4, 3, 4, 2],
 [0, 4, 3, 4, 3],
 [0, 4, 3, 4, 4],
 [0, 4, 4, 0, 0],
 [0, 4, 4, 0, 1],
 [0, 4, 4, 0, 2],
 [0, 4, 4, 0, 3],
 [0, 4, 4, 0, 4],
 [0, 4, 4, 1, 0],
 [0, 4, 4, 1, 1],
 [0, 4, 4, 1, 2],
 [0, 4, 4, 1, 3],
 [0, 4, 4, 1, 4],
 [0, 4, 4, 2, 0],
 [0, 4, 4, 2, 1],
 [0, 4, 4, 2, 2],
 [0, 4, 4, 2, 3],
 [0, 4, 4, 2, 4],
 [0, 4, 4, 3, 0],
 [0, 4, 4, 3, 1],
 [0, 4, 4, 3, 2],
 [0, 4, 4, 3, 3],
 [0, 4, 4, 3, 4],
 [0, 4, 4, 4, 0],
 [0, 4, 4, 4, 1],
 [0, 4, 4, 4, 2],
 [0, 4, 4, 4, 3],
 [0, 4, 4, 4, 4],
 [1, 0, 0, 0, 0],
 [1, 0, 0, 0, 1],
 [1, 0, 0, 0, 2],
 [1, 0, 0, 0, 3],
 [1, 0, 0, 0, 4],
 [1, 0, 0, 1, 0],
 [1, 0, 0, 1, 1],
 [1, 0, 0, 1, 2],
 [1, 0, 0, 1, 3],
 [1, 0, 0, 1, 4],
 [1, 0, 0, 2, 0],
 [1, 0, 0, 2, 1],
 [1, 0, 0, 2, 2],
 [1, 0, 0, 2, 3],
 [1, 0, 0, 2, 4],
 [1, 0, 0, 3, 0],
 [1, 0, 0, 3, 1],
 [1, 0, 0, 3, 2],
 [1, 0, 0, 3, 3],
 [1, 0, 0, 3, 4],
 [1, 0, 0, 4, 0],
 [1, 0, 0, 4, 1],
 [1, 0, 0, 4, 2],
 [1, 0, 0, 4, 3],
 [1, 0, 0, 4, 4],
 [1, 0, 1, 0, 0],
 [1, 0, 1, 0, 1],
 [1, 0, 1, 0, 2],
 [1, 0, 1, 0, 3],
 [1, 0, 1, 0, 4],
 [1, 0, 1, 1, 0],
 [1, 0, 1, 1, 1],
 [1, 0, 1, 1, 2],
 [1, 0, 1, 1, 3],
 [1, 0, 1, 1, 4],
 [1, 0, 1, 2, 0],
 [1, 0, 1, 2, 1],
 [1, 0, 1, 2, 2],
 [1, 0, 1, 2, 3],
 [1, 0, 1, 2, 4],
 [1, 0, 1, 3, 0],
 [1, 0, 1, 3, 1],
 [1, 0, 1, 3, 2],
 [1, 0, 1, 3, 3],
 [1, 0, 1, 3, 4],
 [1, 0, 1, 4, 0],
 [1, 0, 1, 4, 1],
 [1, 0, 1, 4, 2],
 [1, 0, 1, 4, 3],
 [1, 0, 1, 4, 4],
 [1, 0, 2, 0, 0],
 [1, 0, 2, 0, 1],
 [1, 0, 2, 0, 2],
 [1, 0, 2, 0, 3],
 [1, 0, 2, 0, 4],
 [1, 0, 2, 1, 0],
 [1, 0, 2, 1, 1],
 [1, 0, 2, 1, 2],
 [1, 0, 2, 1, 3],
 [1, 0, 2, 1, 4],
 [1, 0, 2, 2, 0],
 [1, 0, 2, 2, 1],
 [1, 0, 2, 2, 2],
 [1, 0, 2, 2, 3],
 [1, 0, 2, 2, 4],
 [1, 0, 2, 3, 0],
 [1, 0, 2, 3, 1],
 [1, 0, 2, 3, 2],
 [1, 0, 2, 3, 3],
 [1, 0, 2, 3, 4],
 [1, 0, 2, 4, 0],
 [1, 0, 2, 4, 1],
 [1, 0, 2, 4, 2],
 [1, 0, 2, 4, 3],
 [1, 0, 2, 4, 4],
 [1, 0, 3, 0, 0],
 [1, 0, 3, 0, 1],
 [1, 0, 3, 0, 2],
 [1, 0, 3, 0, 3],
 [1, 0, 3, 0, 4],
 [1, 0, 3, 1, 0],
 [1, 0, 3, 1, 1],
 [1, 0, 3, 1, 2],
 [1, 0, 3, 1, 3],
 [1, 0, 3, 1, 4],
 [1, 0, 3, 2, 0],
 [1, 0, 3, 2, 1],
 [1, 0, 3, 2, 2],
 [1, 0, 3, 2, 3],
 [1, 0, 3, 2, 4],
 [1, 0, 3, 3, 0],
 [1, 0, 3, 3, 1],
 [1, 0, 3, 3, 2],
 [1, 0, 3, 3, 3],
 [1, 0, 3, 3, 4],
 [1, 0, 3, 4, 0],
 [1, 0, 3, 4, 1],
 [1, 0, 3, 4, 2],
 [1, 0, 3, 4, 3],
 [1, 0, 3, 4, 4],
 [1, 0, 4, 0, 0],
 [1, 0, 4, 0, 1],
 [1, 0, 4, 0, 2],
 [1, 0, 4, 0, 3],
 [1, 0, 4, 0, 4],
 [1, 0, 4, 1, 0],
 [1, 0, 4, 1, 1],
 [1, 0, 4, 1, 2],
 [1, 0, 4, 1, 3],
 [1, 0, 4, 1, 4],
 [1, 0, 4, 2, 0],
 [1, 0, 4, 2, 1],
 [1, 0, 4, 2, 2],
 [1, 0, 4, 2, 3],
 [1, 0, 4, 2, 4],
 [1, 0, 4, 3, 0],
 [1, 0, 4, 3, 1],
 [1, 0, 4, 3, 2],
 [1, 0, 4, 3, 3],
 [1, 0, 4, 3, 4],
 [1, 0, 4, 4, 0],
 [1, 0, 4, 4, 1],
 [1, 0, 4, 4, 2],
 [1, 0, 4, 4, 3],
 [1, 0, 4, 4, 4],
 [1, 1, 0, 0, 0],
 [1, 1, 0, 0, 1],
 [1, 1, 0, 0, 2],
 [1, 1, 0, 0, 3],
 [1, 1, 0, 0, 4],
 [1, 1, 0, 1, 0],
 [1, 1, 0, 1, 1],
 [1, 1, 0, 1, 2],
 [1, 1, 0, 1, 3],
 [1, 1, 0, 1, 4],
 [1, 1, 0, 2, 0],
 [1, 1, 0, 2, 1],
 [1, 1, 0, 2, 2],
 [1, 1, 0, 2, 3],
 [1, 1, 0, 2, 4],
 [1, 1, 0, 3, 0],
 [1, 1, 0, 3, 1],
 [1, 1, 0, 3, 2],
 [1, 1, 0, 3, 3],
 [1, 1, 0, 3, 4],
 [1, 1, 0, 4, 0],
 [1, 1, 0, 4, 1],
 [1, 1, 0, 4, 2],
 [1, 1, 0, 4, 3],
 [1, 1, 0, 4, 4],
 [1, 1, 1, 0, 0],
 [1, 1, 1, 0, 1],
 [1, 1, 1, 0, 2],
 [1, 1, 1, 0, 3],
 [1, 1, 1, 0, 4],
 [1, 1, 1, 1, 0],
 [1, 1, 1, 1, 1],
 [1, 1, 1, 1, 2],
 [1, 1, 1, 1, 3],
 [1, 1, 1, 1, 4],
 [1, 1, 1, 2, 0],
 [1, 1, 1, 2, 1],
 [1, 1, 1, 2, 2],
 [1, 1, 1, 2, 3],
 [1, 1, 1, 2, 4],
 [1, 1, 1, 3, 0],
 [1, 1, 1, 3, 1],
 [1, 1, 1, 3, 2],
 [1, 1, 1, 3, 3],
 [1, 1, 1, 3, 4],
 [1, 1, 1, 4, 0],
 [1, 1, 1, 4, 1],
 [1, 1, 1, 4, 2],
 [1, 1, 1, 4, 3],
 [1, 1, 1, 4, 4],
 [1, 1, 2, 0, 0],
 [1, 1, 2, 0, 1],
 [1, 1, 2, 0, 2],
 [1, 1, 2, 0, 3],
 [1, 1, 2, 0, 4],
 [1, 1, 2, 1, 0],
 [1, 1, 2, 1, 1],
 [1, 1, 2, 1, 2],
 [1, 1, 2, 1, 3],
 [1, 1, 2, 1, 4],
 [1, 1, 2, 2, 0],
 [1, 1, 2, 2, 1],
 [1, 1, 2, 2, 2],
 [1, 1, 2, 2, 3],
 [1, 1, 2, 2, 4],
 [1, 1, 2, 3, 0],
 [1, 1, 2, 3, 1],
 [1, 1, 2, 3, 2],
 [1, 1, 2, 3, 3],
 [1, 1, 2, 3, 4],
 [1, 1, 2, 4, 0],
 [1, 1, 2, 4, 1],
 [1, 1, 2, 4, 2],
 [1, 1, 2, 4, 3],
 [1, 1, 2, 4, 4],
 [1, 1, 3, 0, 0],
 [1, 1, 3, 0, 1],
 [1, 1, 3, 0, 2],
 [1, 1, 3, 0, 3],
 [1, 1, 3, 0, 4],
 [1, 1, 3, 1, 0],
 [1, 1, 3, 1, 1],
 [1, 1, 3, 1, 2],
 [1, 1, 3, 1, 3],
 [1, 1, 3, 1, 4],
 [1, 1, 3, 2, 0],
 [1, 1, 3, 2, 1],
 [1, 1, 3, 2, 2],
 [1, 1, 3, 2, 3],
 [1, 1, 3, 2, 4],
 [1, 1, 3, 3, 0],
 [1, 1, 3, 3, 1],
 [1, 1, 3, 3, 2],
 [1, 1, 3, 3, 3],
 [1, 1, 3, 3, 4],
 [1, 1, 3, 4, 0],
 [1, 1, 3, 4, 1],
 [1, 1, 3, 4, 2],
 [1, 1, 3, 4, 3],
 [1, 1, 3, 4, 4],
 [1, 1, 4, 0, 0],
 [1, 1, 4, 0, 1],
 [1, 1, 4, 0, 2],
 [1, 1, 4, 0, 3],
 [1, 1, 4, 0, 4],
 [1, 1, 4, 1, 0],
 [1, 1, 4, 1, 1],
 [1, 1, 4, 1, 2],
 [1, 1, 4, 1, 3],
 [1, 1, 4, 1, 4],
 [1, 1, 4, 2, 0],
 [1, 1, 4, 2, 1],
 [1, 1, 4, 2, 2],
 [1, 1, 4, 2, 3],
 [1, 1, 4, 2, 4],
 [1, 1, 4, 3, 0],
 [1, 1, 4, 3, 1],
 [1, 1, 4, 3, 2],
 [1, 1, 4, 3, 3],
 [1, 1, 4, 3, 4],
 [1, 1, 4, 4, 0],
 [1, 1, 4, 4, 1],
 [1, 1, 4, 4, 2],
 [1, 1, 4, 4, 3],
 [1, 1, 4, 4, 4],
 [1, 2, 0, 0, 0],
 [1, 2, 0, 0, 1],
 [1, 2, 0, 0, 2],
 [1, 2, 0, 0, 3],
 [1, 2, 0, 0, 4],
 [1, 2, 0, 1, 0],
 [1, 2, 0, 1, 1],
 [1, 2, 0, 1, 2],
 [1, 2, 0, 1, 3],
 [1, 2, 0, 1, 4],
 [1, 2, 0, 2, 0],
 [1, 2, 0, 2, 1],
 [1, 2, 0, 2, 2],
 [1, 2, 0, 2, 3],
 [1, 2, 0, 2, 4],
 [1, 2, 0, 3, 0],
 [1, 2, 0, 3, 1],
 [1, 2, 0, 3, 2],
 [1, 2, 0, 3, 3],
 [1, 2, 0, 3, 4],
 [1, 2, 0, 4, 0],
 [1, 2, 0, 4, 1],
 [1, 2, 0, 4, 2],
 [1, 2, 0, 4, 3],
 [1, 2, 0, 4, 4],
 [1, 2, 1, 0, 0],
 [1, 2, 1, 0, 1],
 [1, 2, 1, 0, 2],
 [1, 2, 1, 0, 3],
 [1, 2, 1, 0, 4],
 [1, 2, 1, 1, 0],
 [1, 2, 1, 1, 1],
 [1, 2, 1, 1, 2],
 [1, 2, 1, 1, 3],
 [1, 2, 1, 1, 4],
 [1, 2, 1, 2, 0],
 [1, 2, 1, 2, 1],
 [1, 2, 1, 2, 2],
 [1, 2, 1, 2, 3],
 [1, 2, 1, 2, 4],
 [1, 2, 1, 3, 0],
 [1, 2, 1, 3, 1],
 [1, 2, 1, 3, 2],
 [1, 2, 1, 3, 3],
 [1, 2, 1, 3, 4],
 [1, 2, 1, 4, 0],
 [1, 2, 1, 4, 1],
 [1, 2, 1, 4, 2],
 [1, 2, 1, 4, 3],
 [1, 2, 1, 4, 4],
 [1, 2, 2, 0, 0],
 [1, 2, 2, 0, 1],
 [1, 2, 2, 0, 2],
 [1, 2, 2, 0, 3],
 [1, 2, 2, 0, 4],
 [1, 2, 2, 1, 0],
 [1, 2, 2, 1, 1],
 [1, 2, 2, 1, 2],
 [1, 2, 2, 1, 3],
 [1, 2, 2, 1, 4],
 [1, 2, 2, 2, 0],
 [1, 2, 2, 2, 1],
 [1, 2, 2, 2, 2],
 [1, 2, 2, 2, 3],
 [1, 2, 2, 2, 4],
 [1, 2, 2, 3, 0],
 [1, 2, 2, 3, 1],
 [1, 2, 2, 3, 2],
 [1, 2, 2, 3, 3],
 [1, 2, 2, 3, 4],
 [1, 2, 2, 4, 0],
 [1, 2, 2, 4, 1],
 [1, 2, 2, 4, 2],
 [1, 2, 2, 4, 3],
 [1, 2, 2, 4, 4],
 [1, 2, 3, 0, 0],
 [1, 2, 3, 0, 1],
 [1, 2, 3, 0, 2],
 [1, 2, 3, 0, 3],
 [1, 2, 3, 0, 4],
 [1, 2, 3, 1, 0],
 [1, 2, 3, 1, 1],
 [1, 2, 3, 1, 2],
 [1, 2, 3, 1, 3],
 [1, 2, 3, 1, 4],
 [1, 2, 3, 2, 0],
 [1, 2, 3, 2, 1],
 [1, 2, 3, 2, 2],
 [1, 2, 3, 2, 3],
 [1, 2, 3, 2, 4],
 [1, 2, 3, 3, 0],
 [1, 2, 3, 3, 1],
 [1, 2, 3, 3, 2],
 [1, 2, 3, 3, 3],
 [1, 2, 3, 3, 4],
 [1, 2, 3, 4, 0],
 [1, 2, 3, 4, 1],
 [1, 2, 3, 4, 2],
 [1, 2, 3, 4, 3],
 [1, 2, 3, 4, 4],
 [1, 2, 4, 0, 0],
 [1, 2, 4, 0, 1],
 [1, 2, 4, 0, 2],
 [1, 2, 4, 0, 3],
 [1, 2, 4, 0, 4],
 [1, 2, 4, 1, 0],
 [1, 2, 4, 1, 1],
 [1, 2, 4, 1, 2],
 [1, 2, 4, 1, 3],
 [1, 2, 4, 1, 4],
 [1, 2, 4, 2, 0],
 [1, 2, 4, 2, 1],
 [1, 2, 4, 2, 2],
 [1, 2, 4, 2, 3],
 [1, 2, 4, 2, 4],
 [1, 2, 4, 3, 0],
 [1, 2, 4, 3, 1],
 [1, 2, 4, 3, 2],
 [1, 2, 4, 3, 3],
 [1, 2, 4, 3, 4],
 [1, 2, 4, 4, 0],
 [1, 2, 4, 4, 1],
 [1, 2, 4, 4, 2],
 [1, 2, 4, 4, 3],
 [1, 2, 4, 4, 4]]

Please someone help me to solve this.

Given that you have a fixed inner list, just do `[[0, 1, 2, 3, 4] for i in range(5)]` — metatoaster, Sep 10 '19 at 05:27
You have 5 nested loops, which produces 5 x 5 x 5 x 5 x 5 entries. You need 2 nested loops to produce 5 rows of 5 entries (25 total). — Matthias Fripp, Sep 10 '19 at 05:37

score 6 · Accepted Answer · answered Sep 10 '19 at 05:27

6

Try this,

>>> [[j for j in range(5)] for i in range(5)]

Output:

[[0, 1, 2, 3, 4],
 [0, 1, 2, 3, 4],
 [0, 1, 2, 3, 4],
 [0, 1, 2, 3, 4],
 [0, 1, 2, 3, 4]]

answered Sep 10 '19 at 05:27

shaik moeed

5,300
1
18
54

1

Ohh! It's so easy. I've tried for long times Thanks friend :) – Aamir Kalimi Sep 10 '19 at 05:36
# List of lists @Amir_Kalimi and @shaik_moeed: You can make it more concise and pythonic. With `nrows, ncols = (5,5)`, the list of lists is given by: `a = [[x for x in range(ncols)]]*nrows` – CypherX Sep 10 '19 at 05:48
@CypherX, Using `list * list` does have some drawbacks. If you tried to change `a[2][2]`, it will change all elements in `a[*][2]` because it is referencing to the same object. So, it is not recommended to use without knowing. – shaik moeed Sep 10 '19 at 05:52
Why is this question closed for more answers? I tried posting my solution `[[x for x in range(ncols)]]*nrows` to it, but could not as it seems it has been closed for any more responses. – CypherX Sep 10 '19 at 05:53
@shaikmoeed: I checked with the following and did not see other lists getting overwritten. Am I missing something? `a[0] = [9]*5`. – CypherX Sep 10 '19 at 05:57
@CypherX Check with `list of list`, which you have suggested as answer in the above comment – shaik moeed Sep 10 '19 at 05:59
1

@shaikmoeed Okay. I see. If I do `a[1][2] = 9` that just changes all `a[*][2]` to 9. Thank you for pointing this out. :) – CypherX Sep 10 '19 at 06:01

Create a 5 x 5 matrix using Nested list comprehensions

1 Answers1