嵌套列表和迭代删除

Question

我想遍历这个列表

[{'quote': {'USD': {'close': 50861.552205896805,
'high': 50982.038774035216,
'low': 50730.75579185529,
'market_cap': 961892403779.12,
'open': 50881.508801727796,
'timestamp': '2021-12-27T02:59:59.999Z',
'volume': 20597797622.55}}},
{'quote': {'USD': {'close': 51020.884322626065,
'high': 51053.01734838643,
'low': 50875.17580190205,
'market_cap': 964908852082.23,
'open': 51031.607414525155,
'timestamp': '2021-12-27T04:59:59.999Z',
'volume': 20155251492.28}}},
{'quote': {'USD': {'close': 50961.30660215557,
'high': 50968.54723757928,
'low': 50787.682527382436,
'market_cap': 963786906391.14,
'open': 50872.72513079699,
'timestamp': '2021-12-27T06:59:59.999Z',
'volume': 20373929446.42}}}]

删除前引号和USD位信息;

[{'close': 50861.552205896805,
'high': 50982.038774035216,
'low': 50730.75579185529,
'market_cap': 961892403779.12,
'open': 50881.508801727796,
'timestamp': '2021-12-27T02:59:59.999Z',
'volume': 20597797622.55},
{'close': 51020.884322626065,
'high': 51053.01734838643,
'low': 50875.17580190205,
'market_cap': 964908852082.23,
'open': 51031.607414525155,
'timestamp': '2021-12-27T04:59:59.999Z',
'volume': 20155251492.28},
{'close': 50961.30660215557,
'high': 50968.54723757928,
'low': 50787.682527382436,
'market_cap': 963786906391.14,
'open': 50872.72513079699,
'timestamp': '2021-12-27T06:59:59.999Z',
'volume': 20373929446.42}]

任何帮助都将非常感激!

Answer 1

您可以在查找时使用列表推导式来删除每个条目的外部字典:

[item['quote']['USD'] for item in data]

这个输出:

[
{
'close': 50861.552205896805,
'high': 50982.038774035216,
'low': 50730.75579185529,
'market_cap': 961892403779.12,
'open': 50881.508801727796,
'timestamp': '2021-12-27T02:59:59.999Z',
'volume': 20597797622.55
},
{
'close': 51020.884322626065,
'high': 51053.01734838643,
'low': 50875.17580190205,
'market_cap': 964908852082.23,
'open': 51031.607414525155,
'timestamp': '2021-12-27T04:59:59.999Z',
'volume': 20155251492.28
},
{
'close': 50961.30660215557,
'high': 50968.54723757928,
'low': 50787.682527382436,
'market_cap': 963786906391.14,
'open': 50872.72513079699,
'timestamp': '2021-12-27T06:59:59.999Z',
'volume': 20373929446.42
}
]

Answer 2

只是为了补充别人的答案。

list = [{'quote': {'USD': {'close': 50861.552205896805,
'high': 50982.038774035216,
'low': 50730.75579185529,
'market_cap': 961892403779.12,
'open': 50881.508801727796,
'timestamp': '2021-12-27T02:59:59.999Z',
'volume': 20597797622.55}}},
{'quote': {'USD': {'close': 51020.884322626065,
'high': 51053.01734838643,
'low': 50875.17580190205,
'market_cap': 964908852082.23,
'open': 51031.607414525155,
'timestamp': '2021-12-27T04:59:59.999Z',
'volume': 20155251492.28}}},
{'quote': {'USD': {'close': 50961.30660215557,
'high': 50968.54723757928,
'low': 50787.682527382436,
'market_cap': 963786906391.14,
'open': 50872.72513079699,
'timestamp': '2021-12-27T06:59:59.999Z',
'volume': 20373929446.42}}}]

data = [item['quote']['USD'] for item in list]
print(data)