python 识别二维码内容 及pyzbar OSError: [WinError 126] 报错解决

import cv2
from pyzbar.pyzbar import decode
qrcode_image = cv2.imread('bbb.png')
aa =  decode(qrcode_image)
print aa

 如果Windows安装pyzbar后遇到OSError: [WinError 126]报错，安装Visual C++ Redistributable Packages for Visual Studio 2013