从Amazon API获取所有图像URL

Question

您可以使用以下代码来获取amazon上某一特定商品的第一张图片URL：

from amazon.api import AmazonAPI

amazon = AmazonAPI(aws_key='XXX', aws_secret='XXX', aws_associate_tag='XXX', region="DE")
product = amazon.lookup(ItemId='B003P0ZB1K')
print(product.large_image_url)

但是，如何才能获得该项目的所有图像URL，而不是只获得第一个呢？谢谢。

Answer 1

您需要在请求中包含“Images”响应组。

product = amazon.lookup(ItemId='B003P0ZB1K', ResponseGroup='Images')

然后可以通过ImageSets属性访问XML图像列表，但需要使用XML解析器对其进行解析。

product.images

有关在python中解析XML的信息，请查看本文：How do I parse XML in Python?

参考：https://docs.aws.amazon.com/AWSECommerceService/latest/DG/RG_Images.html

从库的源代码中：

@property
def images(self):
    """List of images for a response.
    When using lookup with RespnoseGroup 'Images', you'll get a
    list of images. Parse them so they are returned in an easily
    used list format.
    :return:
        A list of `ObjectifiedElement` images
    """
    try:
        images = [image for image in self._safe_get_element(
            'ImageSets.ImageSet')]
    except TypeError:  # No images in this ResponseGroup
        images = []
    return images

图像集XML如下所示：

<ImageSets>
  <ImageSet Category="primary">
  <SwatchImage>
  <URL>https://ecx.images-amazon.com/images/I/51YL4rlI%2B9L._SL30_.jpg</URL>
  <Height Units="pixels">30</Height>
  <Width Units="pixels">23</Width>
  </SwatchImage>
  <SmallImage>
  <URL>https://ecx.images-amazon.com/images/I/51YL4rlI%2B9L._SL75_.jpg</URL>
  <Height Units="pixels">75</Height>
  <Width Units="pixels">58</Width>
  </SmallImage>
  <ThumbnailImage>
  <URL>https://ecx.images-amazon.com/images/I/51YL4rlI%2B9L._SL75_.jpg</URL>
  <Height Units="pixels">75</Height>
  <Width Units="pixels">58</Width>
  </ThumbnailImage>
  <TinyImage>
  <URL>https://ecx.images-amazon.com/images/I/51YL4rlI%2B9L._SL110_.jpg</URL>
  <Height Units="pixels">110</Height>
  <Width Units="pixels">86</Width>
  </TinyImage>
  <MediumImage>
  <URL>https://ecx.images-amazon.com/images/I/51YL4rlI%2B9L._SL160_.jpg</URL>
  <Height Units="pixels">160</Height>
  <Width Units="pixels">124</Width>
  </MediumImage>
  <LargeImage>
  <URL>https://ecx.images-amazon.com/images/I/51YL4rlI%2B9L.jpg</URL>
  <Height Units="pixels">500</Height>
  <Width Units="pixels">389</Width>
  </LargeImage>
 </ImageSet>
</ImageSets>