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#!/usr/bin/python
from sys import argv
import zbar
# create a Processor
proc = zbar.Processor()
# configure the Processor
proc.parse_config('enable')
# initialize the Processor
device = '/dev/video0'
if len(argv) > 1:
device = argv[1]
proc.init(device)
# enable the preview window
proc.visible = True
# read at least one barcode (or until window closed)
proc.process_one()
# hide the preview window
proc.visible = False
# extract results
for symbol in proc.results:
# do something useful with results
print 'decoded', symbol.type, 'symbol', '"%s"' % symbol.data
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