问Python调用百度OCR，提示KeyError？

# """ 带参数调用通用文字识别, 图片参数为本地图片 """
        try:
            result = client.basicGeneral(image, options)
        except:
             print('网络问题')
        resultword = result['words_result']
        num = result['words_result_num']
        OCRtext = []
        for i in range(0,num):
            print(resultword[i]['words'])
            OCRtext.append(resultword[i]['words'])
        OutPutOCRtext='\n'.join(OCRtext)
        contents.SetValue(OutPutOCRtext)
        
        
 错误信息：resultword = result['words_result','not exist']
KeyError: ('words_result', 'not exist')