使用另一个列表对字典列表进行Python排序

Question

这是我的数据

pricing = [
    {
      "link": "https://www.kohls.com/product/prd-3751773/laura-geller-iconic-baked-sculpting-lipstick.jsp?skuid=75792684",
      "price": "21",
      "stock": true,
      "title": "Laura Geller Iconic Baked Sculpting Lipstick, Red Overfl",
      "seller": "Kohl's"
    },
    {
      "link": "https://www.macys.com/shop/product/laura-geller-beauty-iconic-baked-sculpting-lipstick-cream?ID=5713197&PartnerID=LINKSHARE&cm_mmc=LINKSHARE-_-4-_-41-_-MP441",
      "price": "21.00",
      "stock": true,
      "title": "Laura Geller Beauty Iconic Baked Sculpting Lipstick - Cream",
      "seller": "Macy's"
    },
            {
      "link": "https://www.macys.com/shop/product/laura-geller-beauty-iconic-baked-sculpting-lipstick-cream?ID=5713197&PartnerID=LINKSHARE&cm_mmc=LINKSHARE-_-4-_-41-_-MP441",
      "price": "21.00",
      "stock": true,
      "title": "Laura Geller Beauty Iconic Baked Sculpting Lipstick - Cream",
      "seller": "Wal-Mart.com"
    }
  ]

下面是我正在编写的代码，让它们按照列表排序

retailers = ["Amazon", "Wal-Mart.com", "Target", "CVS",  "Walgreens","Macy’s", "Nordstrom", "MassGenie", "Kohl's", "Kmart"]
data = sorted(pricing, key=lambda x: retailers.index(x['seller']))

错误：

ValueError at /api/product/
"Macy's" is not in list

在这里，我试图按照列表对数据进行排序，但是，在对数据进行排序时，我得到了关键错误。请看看我在哪里搞错了

我期待着结果：

pricing = [
    {
      "link": "https://www.macys.com/shop/product/laura-geller-beauty-iconic-baked-sculpting-lipstick-cream?ID=5713197&PartnerID=LINKSHARE&cm_mmc=LINKSHARE-_-4-_-41-_-MP441",
      "price": "21.00",
      "stock": true,
      "title": "Laura Geller Beauty Iconic Baked Sculpting Lipstick - Cream",
      "seller": "Wal-Mart.com"
    },
    {
      "link": "https://www.macys.com/shop/product/laura-geller-beauty-iconic-baked-sculpting-lipstick-cream?ID=5713197&PartnerID=LINKSHARE&cm_mmc=LINKSHARE-_-4-_-41-_-MP441",
      "price": "21.00",
      "stock": true,
      "title": "Laura Geller Beauty Iconic Baked Sculpting Lipstick - Cream",
      "seller": "Macy's"
    },
    {
      "link": "https://www.kohls.com/product/prd-3751773/laura-geller-iconic-baked-sculpting-lipstick.jsp?skuid=75792684",
      "price": "21",
      "stock": true,
      "title": "Laura Geller Iconic Baked Sculpting Lipstick, Red Overfl",
      "seller": "Kohl's"
    }
  ]

请看一看

Answer 1

你的代码是正确的。问题是"Macy’s"与"Macy's"不一样(注意不同的撇号字符)。

Answer 2

您当前的retailers列表如下所示：

  retailers = ["Amazon", "Wal-Mart.com", "Target", "CVS",  "Walgreens","Macy’s", "Nordstrom", "MassGenie", "Kohl's", "Kmart"]

把它改成

  retailers = ["Amazon", "Wal-Mart.com", "Target", "CVS",  "Walgreens","Macy's", "Nordstrom", "MassGenie", "Kohl's", "Kmart"]

我所做的就是把’改为'

顺便说一下，Kohl's看起来是对的

Answer 3

在中，代码中有两个错误

1. macy’s在retailers列表中。macy's
2. true列表中的而不是 pricing。而不是 True (布尔从python中的大写字母开始)