Question

有人可以说明我的代码有什么问题以及到底是什么导致了此错误吗？我是Python初学者，我想将一些JPG加载到该网络中。通常，我一直在尝试通过试错法来解决问题，并在此网站上进行故障排除。这些东西伤了我的大脑，所以请帮个新手。

先谢谢您！

达伦

错误：

{
  "requestedUrl": "https://www.googleapis.com/books/v1/volumes?q=java&maxResults=40",
  "items": [
    {
      "kind": "books#volume",
      "id": "7tkN1CYzn2cC",
      "etag": "pfjjxSpetIM",
      "selfLink": "https://www.googleapis.com/books/v1/volumes/7tkN1CYzn2cC",
      "volumeInfo": {
        "title": "A Hypervista of the Java Landscape",
        "publisher": "InfoStrategist.com",
        "industryIdentifiers": [
          {
            "type": "ISBN_13",
            "identifier": "9781592432172"
          },
          {
            "type": "ISBN_10",
            "identifier": "1592432174"
          }
        ],
        "readingModes": {
          "text": true,
          "image": true
        },
        "printType": "BOOK",
        "maturityRating": "NOT_MATURE",
        "allowAnonLogging": false,
        "contentVersion": "1.0.1.0.preview.3",
        "imageLinks": {
          "smallThumbnail": "http://books.google.com/books/content?id=7tkN1CYzn2cC&printsec=frontcover&img=1&zoom=5&edge=curl&source=gbs_api",
          "thumbnail": "http://books.google.com/books/content?id=7tkN1CYzn2cC&printsec=frontcover&img=1&zoom=1&edge=curl&source=gbs_api"
        },
        "language": "en",
        "previewLink": "http://books.google.pl/books?id=7tkN1CYzn2cC&pg=PP1&dq=java&hl=&cd=1&source=gbs_api",
        "infoLink": "http://books.google.pl/books?id=7tkN1CYzn2cC&dq=java&hl=&source=gbs_api",
        "canonicalVolumeLink": "https://books.google.com/books/about/A_Hypervista_of_the_Java_Landscape.html?hl=&id=7tkN1CYzn2cC"
      },
      "saleInfo": {
        "country": "PL",
        "saleability": "NOT_FOR_SALE",
        "isEbook": false
      }, //Shortened for brevity

代码：

Traceback (most recent call last):
File "gan3.py", line 30, in <module>
content = open(os.path.join(path, filename)).read()
File "/Users/darren/miniconda3/lib/python3.7/codecs.py", line 322, in 
decode (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: 
invalid start byte

干杯们！

Answer 1

默认情况下，open以文本模式打开文件。当您从中读取数据时，Python会自动尝试将您的数据转换为字符串，因为这不是UTF-8编码的文本，所以会失败。

如果它是图像，则必须以二进制模式打开它：

content = open(os.path.join(path, filename), mode='rb').read()

Answer 2

您可以使用PIL库打开图像文件：

from PIL import Image
#<----code---->
content = Image.open(os.path.join(path, filename))

将JPG加载到神经网络中：UnicodeDecodeError

2 个答案: