How to horizontally offset odd and even rows of pixels in an image using Python? -

i learning how use python image manipulation , trying create image odd , rows of pixels shifted horizontally same amount (e.g. odd rows shifted 10 pixels right , rows shifted 10 pixels left).

the image consists of single black word printed on white background, this:

http://oi63.tinypic.com/2i255bn.jpg

with code below, can odd , rows of pixels in 2 separate images, not sure how combine them single 1 20 pixels total horizontal offset.

from pil import image  im = image.open('myimage.bmp') print im.size  white = 255,255,255 = image.new('rgb',[1024,768], white)  in range( im.size[0] ):     j in range(im.size[1]):         if j % 2 == 0 :             even.putpixel(( int(i), int(j) ), im.getpixel((i,j)) ) even.show()   odd = image.new('rgb',[1024,768], white)  in range( im.size[0] ):     j in range(im.size[1]):         if j % 2 != 0 :             odd.putpixel(( int(i), int(j) ), im.getpixel((i,j)) ) odd.show() 

i new python , grateful this!

as rad suggested in question comments, need create 1 image , output both odd , pixels correct positions within it:

from pil import image  im = image.open('myimage.bmp') print im.size  white = 255,255,255 = image.new('rgb',[1024,768], white)  offset = 10  in range( im.size[0] ):     j in range(im.size[1]):         x = int(i)+offset         if j % 2 == 0:             x = x+10         else:             x = x-10             even.putpixel(( x, int(j) ), im.getpixel((i,j)) )  even.show() 

i added offset ensure pixels don't go off left of canvas.