Automate the Boring Stuff with Python - Ch4 - Character Picture Grid

Asked Sep 09 '22 at 21:55

Active Sep 10 '22 at 02:42

Viewed 22 times

I'm following along in this book, and although the below code runs, and produces the two hearts, I also end up with a 'None' at the end and I can't figure out why.

grid = [['.', '.', '.', '.', '.', '.'],
        ['.', 'O', 'O', '.', '.', '.'],
        ['O', 'O', 'O', 'O', '.', '.'],
        ['O', 'O', 'O', 'O', 'O', '.'],
        ['.', 'O', 'O', 'O', 'O', 'O'],
        ['O', 'O', 'O', 'O', 'O', '.'],
        ['O', 'O', 'O', 'O', '.', '.'],
        ['.', 'O', 'O', '.', '.', '.'],
        ['.', '.', '.', '.', '.', '.']]


def heart(list):
    for i in range(len(grid[0])):
        for j in range(len(grid)):
            print(grid[j][i],end=' ')
        print('')

    for i in range(len(grid[0])-1,-1,-1):
        for j in range(len(grid)):
            print(grid[j][i],end=' ')
        print('')

print(heart(grid))

I've added an image of the result here:

edited Sep 10 '22 at 02:42

asked Sep 09 '22 at 21:55

Kevin Liberty

2

`heart()` doesn't return anything, it does its own printing. You don't need to call `print()` when you call it. – Barmar Sep 09 '22 at 21:58
@G.Anderson I don't think that has the answer. – Barmar Sep 09 '22 at 21:59
@Barmar - That cleared it up, thank you! Did not realize I was trying to double-print. – Kevin Liberty Sep 09 '22 at 22:11

Automate the Boring Stuff with Python - Ch4 - Character Picture Grid

0 Answers0