如何迭代一个文件并将所有的id值放入一个列表[Python]

Question

{'asin': '0756029929', 'description': 'Spanish Third-year Pin, 1 inch in diameter.  Set of 10.', 'title': 'Spanish Third-year Pin Set of 10', 'price': 11.45, 'imUrl': 'http://ecx.images-amazon.com/images/I/51AqSOl7qLL._SY300_.jpg', 'salesRank': {'Toys & Games': 918374}, 'categories': [['Clothing, Shoes & Jewelry', 'Novelty, Costumes & More', 'Novelty', 'Clothing']]}
{'asin': '0756029104', 'description': 'Viva Espaol pin, 1 x 1 inch. Set of 10.', 'title': 'Viva Espanol Pins Set of 10', 'price': 11.45, 'imUrl': 'http://ecx.images-amazon.com/images/I/51By%2BZpF9DL._SY300_.jpg', 'salesRank': {'Home & Kitchen': 2651070}, 'categories': [['Clothing, Shoes & Jewelry', 'Novelty, Costumes & More', 'Novelty', 'Clothing']]}
{'asin': '0839933363', 'description': 'This necklace from the popular manga and anime series, Death Note. The necklace\'s charm is black and silver with the text, "Death Note" upon it. The approx. length of the necklace is 12"Dimension & Measurement:Length: Approx. 12"', 'title': 'Death Note Anime Manga: Cross Logo necklace', 'imUrl': 'http://ecx.images-amazon.com/images/I/51f0HkHssyL._SY300_.jpg', 'salesRank': {'Toys & Games': 1350779}, 'categories': [['Clothing, Shoes & Jewelry', 'Novelty, Costumes & More', 'Costumes & Accessories']]}
{'asin': '1304567583', 'description': 'pink bikini swimwear glow in the dark fashion', 'title': 'Pink Bikini Swimwear Glow in the Dark Fashion', 'price': 19.99, 'imUrl': 'http://ecx.images-amazon.com/images/I/41pS%2B98jhlL._SY300_.jpg', 'categories': [['Clothing, Shoes & Jewelry', 'Novelty, Costumes & More', 'Costumes & Accessories', 'Costumes']]}
{'asin': '1304567613', 'description': 'Bikini Swimwear glow in the dark fashion blue', 'title': 'Bikini Swimwear Blue Glow in the Dark Fashion', 'price': 29.99, 'imUrl': 'http://ecx.images-amazon.com/images/I/41ZNIUvYkyL._SY300_.jpg', 'categories': [['Clothing, Shoes & Jewelry', 'Novelty, Costumes & More', 'Costumes & Accessories', 'Costumes']]}
{'asin': '1465014578', 'title': '2013 Desk Pad Calendar', 'imUrl': 'http://ecx.images-amazon.com/images/I/51NadiHHHsL._SX342_.jpg', 'related': {'also_bought': ['B009SDBX0Q', 'B009DCUY1G'], 'bought_together': ['B009SDBX0Q', 'B009DCUY1G']}, 'salesRank': {'Clothing': 505645}, 'categories': [['Clothing, Shoes & Jewelry', 'Novelty, Costumes & More', 'Band & Music Fan', 'Accessories']]}
{'asin': '1620574128', 'related': {'also_bought': ['B0015KET88', 'B00004WKPP', 'B000F8T8U0', 'B000F8V736', 'B000F8VAOM', 'B0015KGFQM', 'B003U6P4OS', '1564519392', 'B000F8XF8Q', 'B0042SR3E2', 'B004PBLVDU', 'B000G3LR9Y', 'B0006PKZBI', 'B0007PC9CK', 'B001G98DS0', 'B001UFWJLW', 'B003S8XLWA', '0486214834', '1609964713', 'B000P1PVMQ', '0590308572', 'B000QDZY52', '1564514188', 'B0006PKZ7W', 'B000T2YKIM', 'B000QDTWF0', 'B000FA6DXS', 'B0007P94ZA', 'B000WA3FKU', 'B00004WKPU', 'B000F8XF68', 'B004DJ51JE', '

我有这个文件，并希望把所有的值asins到那里自己的列表，这里是我到目前为止，但我只是不知道如何做到这一点，或什么是最好的方式来做，因为该文件有一个扩展名.json，但它不是在有效的json格式，因此为什么我要做它像一个普通的文本文件

with open('File.json', "r") as f:
    for line in f:
         if 'asin' in line:
        #Code that gets the values of asins
         clothing_ids.append(#then add them values to clothing_ids)

print(clothing_ids)

Answer 1

如果文件保证未被污染，您可以eval每行：

with open('File.json', "r") as f:
    asins = [eval(line)['asin'] for line in f]

---

下面是相同的代码，使用@Ajax1234的ast.literal_eval()，以避免受污染文件的问题，但是使用我的列表理解，它单独计算每一行，因此不会将整个数据集存储为临时数据集

import ast

with open('File.json', "r") as f:
    asins = [ast.literal_eval(line)['asin'] for line in f]

---

对于您的基于评论的奖励问题，获取所有“还购买了”物品的列表，包括重复物品：

import ast

also_bought = []
asins = []
with open('File.json', "r") as f:
    for line in f:
        item = ast.literal_eval(line)
        asins.append(item['asin'])
        if 'related' in item:
           related = item['related']
           if 'also_bought' in related:
              also_bought.extend(related['also_bought'])

Answer 2

将列表理解与ast.literal_eval一起使用：

import ast
data = ast.literal_eval(open('File.json').read())
asins = [i['asin'] for i in data]