Data from an image 1

[AMiSM]

I'm still quite the noob with Python. I'm trying to crop a box from an image and turn it into a flat array of integers. I have succeeded in opening the image, cropping the box, and displaying both the original image and the cropped box (to check my progress).
I've tried im.getdata() and im.load(), but when I try to turn the box into a flat list, I'm running up against type errors.
How do I do this?
Thanks in advance

 

[AMiSM]

never mind, I found it:

>>> import itertools
>>> tp = [(1,2),(3,4),(5,6)]
>>> lst = list(itertools.chain(*tp))
>>> lst
[1, 2, 3, 4, 5, 6]

http://stackoverflow.com/questions/1880683/pythonic-way-to-explode-a-list-of-tuples