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#!/usr/bin/env python3
# Render a PPM screenshot as ASCII so we can "read" the GB LCD.
import sys
def load(path):
f=open(path,'rb'); assert f.readline().strip()==b'P6'
w,h=map(int,f.readline().split()); f.readline()
d=f.read(w*h*3); return w,h,d
w,h,d=load(sys.argv[1] if len(sys.argv)>1 else 'shot.ppm')
y0=int(sys.argv[2]) if len(sys.argv)>2 else 0
y1=int(sys.argv[3]) if len(sys.argv)>3 else h
for y in range(y0,min(y1,h)):
row=[]
for x in range(w):
i=(y*w+x)*3; b=(d[i]+d[i+1]+d[i+2])//3
row.append('#' if b<128 else '.')
print(''.join(row))
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