Columns in a table

[newbieAuggie2019]

This was just an example of what i've made to switch lines. Now , I want to switch colums but I don't know how to do it, even if i tried...

Hi!

Maybe you could do something like this (but probably there is a better way):

def changeColumns(c,d):
    a = [[1, 2, 3, 4, 5, 6, 7, 8, 9], [4, 5, 6, 7, 8, 9, 1, 2, 3], [7, 8, 9, 1, 2, 3, 4, 5, 6], [2, 3, 1, 5, 6, 4, 8, 9, 7], [5, 6, 4, 8, 9, 7, 2, 3, 1],[8, 9, 7, 2, 3, 1, 5, 6, 4], [3, 1, 2, 6, 4, 5, 9, 7, 8], [6, 4, 5, 9, 7, 8, 3, 1, 2], [9, 7, 8, 3, 1, 2, 6, 4, 5]]
    print(f"This is array 'a' with original columns:\n")
    for i in range(len(a)):
        for j in range(len(a[i])):
            print(a[i][j], end=' ')
        print()
    print(f"\nThis is array 'a' with transposed columns:\n")    
    for x in range(0,9):
        a[x][c],a[x][d]= a[x][d],a[x][c]
    for i in range(len(a)):
        for j in range(len(a[i])):
            print(a[i][j], end=' ')
        print()

changeColumns(3,6)

with the self-explanatory output:

Output:
This is array 'a' with original columns:

1 2 3 4 5 6 7 8 9 
4 5 6 7 8 9 1 2 3 
7 8 9 1 2 3 4 5 6 
2 3 1 5 6 4 8 9 7 
5 6 4 8 9 7 2 3 1 
8 9 7 2 3 1 5 6 4 
3 1 2 6 4 5 9 7 8 
6 4 5 9 7 8 3 1 2 
9 7 8 3 1 2 6 4 5 

This is array 'a' with transposed columns:

1 2 3 7 5 6 4 8 9 
4 5 6 1 8 9 7 2 3 
7 8 9 4 2 3 1 5 6 
2 3 1 8 6 4 5 9 7 
5 6 4 2 9 7 8 3 1 
8 9 7 5 3 1 2 6 4 
3 1 2 9 4 5 6 7 8 
6 4 5 3 7 8 9 1 2 
9 7 8 6 1 2 3 4 5 
>>>

All the best,