在迭代列表中提取值的列表时，如何修复发生的键盘？
我正在尝试使用列表理解的字典列表中提取与低价相关的值。
我有一个问题（我认为），因为“ lowprice”键在第一个列表中包含的字典中找不到。
最小可重复的示例
offers = [
{
"@type": "AggregateOffer",
"priceCurrency": "GBP",
"name": "Mini Sized Basketball",
"sku": "GHSNC52",
"mpn": "GHSNC52",
"url": "https://www.basketballsrus.com/mini-sized-basket-ball",
"itemCondition": "https://schema.org/NewCondition",
"availability": "https://schema.org/LimitedAvailability",
},
{
"@type": "AggregateOffer",
"highPrice": "20.24",
"lowPrice": "20.24",
"priceCurrency": "GBP",
"name": "Full Sized Basket Ball",
"sku": "GHSNC75",
"mpn": "GHSNC75",
"url": "https://www.basketballsrus.com/full-sized-basket-ball",
"itemCondition": "https://schema.org/NewCondition",
"availability": "https://schema.org/InStock",
},
]
我的代码：
lowPrice = [d['highPrice'] for d in offers]
这会产生一个键盘。
所需的输出 20.24
我该如何修复键盘？还是围绕它来工作？
I'm trying to extract the value associated with lowPrice in a list of dictionaries using a list comprehension.
I'm having an issue (I think) because the "lowPrice" key isn't found in the dictionary contained in the first list.
Minimum Reproducible Example
offers = [
{
"@type": "AggregateOffer",
"priceCurrency": "GBP",
"name": "Mini Sized Basketball",
"sku": "GHSNC52",
"mpn": "GHSNC52",
"url": "https://www.basketballsrus.com/mini-sized-basket-ball",
"itemCondition": "https://schema.org/NewCondition",
"availability": "https://schema.org/LimitedAvailability",
},
{
"@type": "AggregateOffer",
"highPrice": "20.24",
"lowPrice": "20.24",
"priceCurrency": "GBP",
"name": "Full Sized Basket Ball",
"sku": "GHSNC75",
"mpn": "GHSNC75",
"url": "https://www.basketballsrus.com/full-sized-basket-ball",
"itemCondition": "https://schema.org/NewCondition",
"availability": "https://schema.org/InStock",
},
]
My code:
lowPrice = [d['highPrice'] for d in offers]
this produces a KeyError.
Desired Output
20.24
How can I fix the KeyError? Or alternatively work around it?
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