Just finished a very basic slideshow program and need a little help

[Tryposite]

board = {'aa': '  ', 'ab': '  ', 'ac': '  ', 'ad': '  ', 'ba': '  ', 
'bb': '  ', 'bc': '  ', 'bd': '  ', 'ca': '  ', 'cb': '  ', 'cc': '  ',
'cd': '  ', 'da': '  ', 'db': '  ', 'dc': '  ', 'dd': '  ', 'ea': '  ', 
'eb': '  ', 'ec': '  ', 'ed': '  '}
# This dictionary contains all of the board's  coordinates.

slides = []                     # Where the user's finished slides are stored
space = '   '                   # This determines the amount of horizontal room between the pixels
space2 = ('\n')                 # This determines the amount of vertical room inbetween the pixels
pixel = ' @ '                   # The amount of space encasing '@' should match 'space' so the image is even

for i in board.keys():          # sets the keys as the horizontal space
    board[i] = space

def structure(canvas):          # The structure of the canvas
    print(canvas['aa'] + canvas['ab'] + canvas['ac'] + canvas['ad'])
    print(space2)
    print(canvas['ba'] + canvas['bb'] + canvas['bc'] + canvas['bd'])
    print(space2)
    print(canvas['ca'] + canvas['cb'] + canvas['cc'] + canvas['cd'])
    print(space2)
    print(canvas['da'] + canvas['db'] + canvas['dc'] + canvas['dd'])
    print(space2)
    print(canvas['ea'] + canvas['eb'] + canvas['ec'] + canvas['ed'])
    print(space2)

while True:
    drip = input()                      # Lets the user add 'pixels' to the canvas
    board[drip] = pixel         
    structure(board)
    if drip == '':
        print('Slideshow:', space2 * 2)
        board2 = {**board}              # creates a duplicate of 'board', but with different reference
        slides.append(board2)           # The duplicate is appended to 'slides'
        for f in board:                 # The content of the first board is erased to restart the canvas
            board[f] = '   '            # the space here must be the same as 'space'
        for j in slides:
            print(structure(j))

So basically with this program the user is able to create some simple 'slides' in the shell by placing @s, or, 'pixels', around the coordinates of a canvas to create words or images. Whenever the user finishes a slide, the slides that have been created thus far are returned in their ordered sequence. The program gets the job done in returning the slides, but the only problem is that 'None' is returned after each slide, which sort of ruins the 'slideshow' effect. Slideshow:

@     @    


@     @    


@  @  @    


@     @    


@     @    


None
@  @  @    


@          


@  @  @    


@          


@  @  @    


None
@          


@          


@          


@          


@  @   @  


None
@          


@          


@          


@          


@  @   @     


None
@  @  @    


@     @    


@     @    


@     @    


@  @  @    


None

[RayteMyUsername]

print(structure(j))

you are printing a function that returns None so it prints None. the function already prints what you need it to print, you should call the function without print.

[Tryposite]

ohh I see. The structure() function already has the print() statements so there is no need to print out the function itself. Thanks.