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http://pythonchallenge.com PIL module PIL module은 pip install PIL 이 아닌 pip install pillow 로 패키지를 다운받아야 함 Solution Process 1 with Image.open('oxygen.png', 'r') as img: width, height = img.size # with open('source.txt', 'wt') as f: # for y in range(height): # f.write(f'{y} {img.getpixel((0, y))}\n') ''' characteristics of white to black: Same R,G,B values 43 (115, 115, 115, 255) 44 (115, 115, 115,..