create a grayscale picture of magnet links

magnetHashHexPic.py

#!/usr/bin/python
import Image, sys, random

hash = random.choice(['411A7A164505636AB1A8276395B375A3A30BFF32',
                      '79816060EA56D56F2A2148CD45705511079F9BCA',
                      'f5615dfb80ac995787c1b2219a75df7805278dea',
                      '43b21801f59336b9271a6c5113904fb72de99ed3',
                      '938802790a385c49307f34cca4c30f80b03df59c'])

if(len(sys.argv) == 4):
	hash = sys.argv[1]
        width = int(sys.argv[2])
        height=  int(sys.argv[3])
elif((len(sys.argv) == 3)):
        width = int(sys.argv[1])
        height=  int(sys.argv[2])
else:
	width = 20
	height=  1

n = 2
chunked = [ int(hash[i:i+n], 16) for i in range(0, len(hash), n) ]

print hash
print [hex(c) for c in chunked]
print chunked

# https://infohost.nmt.edu/tcc/help/pubs/pil/defs.html#mode
# "L" 8-bit Grayscale

img = Image.new("RGB", (width, height))
pixel = img.load()

i = 0

for y in xrange(img.size[1]):
	for x in xrange(img.size[0]):
		pixel[x,y] = (chunked[i], chunked[i], chunked[i])
		i += 1

# 500% resize
# img = img.resize((width*5, height*5), Image.NEAREST) #not preserving hard edges
img.save("hashPic.png", "PNG")