gistfile1.txt

import zbar
import picamera
import io

width = 640
height = 480

raw_data = io.BytesIO()
scanner = zbar.ImageScanner()
scanner.parse_config('enable')
with picamera.PiCamera() as camera:
    camera.resolution = (width, height)
    camera.raw_format = 'yuv'
    while True:
        camera.capture(raw_data, 'raw')
        raw_data.seek(0)
        image = zbar.Image(width, height, 'Y800',
raw_data.getvalue()[0:width*height])
        scanner.scan(image)
        for symbol in image:
            print 'decoded', symbol.type, 'symbol', '"%s"' % symbol.data