如何在Python的循环中创建JSON数据？

Question

我试着创建这样的循环，但它给了我错误

for prod in data:
   productId = prod['productId']

错误：

^{pr2}$

---

{'volume': '1', 'productId': 32702747712, 'evaluateScore': '4.9', 'storeUrl': 'https://www.aliexpress.com/store/1393300', 'lotNum': 1, 'discount': '48%', 'validTime': '2018-06-21', 'storeName': 'MORAZORA', 'productUrl': 'https://www.aliexpress.com/item/fashion-2017-hot-sale-top-quality-pu-nubuck-leather-ankle-boots-med-heel-round-toe-solid/32702747712.html', 'packageType': 'piece', 'allImageUrls': 'https://ae01.alicdn.com/kf/HTB10rBClEUIL1JjSZFrq6z3xFXaq/MORAZORA-Fashion-2018-hot-sale-top-quality-flock-ankle-boots-for-women-autumn-winter-high-heel.jpg,https://ae01.alicdn.com/kf/HTB129b2e_J_SKJjSZPiq6z3LpXaR/MORAZORA-Fashion-2018-hot-sale-top-quality-flock-ankle-boots-for-women-autumn-winter-high-heel.jpg,https://ae01.alicdn.com/kf/HTB1gYNClEUIL1JjSZFrq6z3xFXaJ/MORAZORA-Fashion-2018-hot-sale-top-quality-flock-ankle-boots-for-women-autumn-winter-high-heel.jpg,https://ae01.alicdn.com/kf/HTB1s04klC7PL1JjSZFHq6AciXXa0/MORAZORA-Fashion-2018-hot-sale-top-quality-flock-ankle-boots-for-women-autumn-winter-high-heel.jpg,https://ae01.alicdn.com/kf/HTB1AcUgdaagSKJjy0Faq6z0dpXa3/MORAZORA-Fashion-2018-hot-sale-top-quality-flock-ankle-boots-for-women-autumn-winter-high-heel.jpg,https://ae01.alicdn.com/kf/HTB1TYjLbu7EWeJjSZFMq6x00FXa7/MORAZORA-Fashion-2018-hot-sale-top-quality-flock-ankle-boots-for-women-autumn-winter-high-heel.jpg'}

如何创建产品：

data = aliexpress.get_product_details(['productId', 'productUrl', 'discount', 'evaluateScore',
                                      'volume', 'packageType', 'lotNum', 'validTime', 'storeName', 'storeUrl', 'allImageUrls'], productId)
dmp = json.dumps(data)
for prod in dmp:
    print(prod)
    productId = prod['productId']
    productUrl = prod['productUrl']
    discount = prod['discount']
    evaluateScore = prod['evaluateScore']
    volume = prod['volume']
    packageType = prod['packageType']
    lotNum = prod['lotNum']
    validTime = prod['validTime']
    storeName = prod['storeName']
    storeUrl = prod['storeUrl']
    allImageUrls = prod['allImageUrls']

Answer 1

此问题源于尝试迭代字典的键：

for prod in data:
    print(prod)

这个返回。。在

^{pr2}$

当您请求'volume'['productId']时，Python会感到困惑——字符串支持整数索引，但是这个字符串'productId'对解释器来说没有任何意义。解决方案是将该dict放入一个列表中，或者直接使用prod['productId']访问该元素