按值過濾字典列表，然后將其他鍵和值添加到過濾字典？

Question

我有一個字典列表：

    option_list_dict = [{'strike_price': '1', 'bid_price': '0.25', 'delta': '0.94' }, 
    {'strike_price': '1.5', 'bid_price': '0.15', 'delta': '0.88'},
    {'strike_price': '2', 'bid_price': '0.05', 'delta': 'None'}, 
    {'strike_price': '2.5', 'bid_price': '0.31', 'delta': '0.25'}]

例如，如何過濾掉>0.9 的“增量”，然后查看該過濾字典中其他值和鍵的 output？ 它不應該搜索“無”相關值。

所以結果應該類似於：

search_for_delta >0.9 = {'strike_price': '1', 'bid_price': '0.25', 'delta': '0.94'}

Answer 1

option_list_dict = [{'strike_price': '1', 'bid_price': '0.25', 'delta': '0.94' }, 
    {'strike_price': '1.5', 'bid_price': '0.15', 'delta': '0.88'},
    {'strike_price': '2', 'bid_price': '0.05', 'delta': 'None'}, 
    {'strike_price': '2.5', 'bid_price': '0.31', 'delta': '0.25'}]

result = []

for dict in option_list_dict:
    try:
        if float(dict['delta']) > 0.9:
            result.append(dict)
    except:
        pass

print(result)

此方法返回滿足條件的所有字典的列表，在本例中：

result = [{'strike_price': '1', 'bid_price': '0.25', 'delta': '0.94'}]

Answer 2

您也可以在“一個”行中執行此操作：

[i for i in option_list_dict if
    (all(f.isnumeric() for f in i['delta'].split('.'))
     and float(i['delta']) > .9)]

[{'strike_price': '1', 'bid_price': '0.25', 'delta': '0.94'}]