簡體   English   中英

如果此子列表中包含特定元素,Python將刪除列表中的子列表

[英]Python remove sublist in a list if specific element inside this sublist

例如

list_of_specific_element = [2,13]
list = [[1, 0], [2, 1], [2, 3], [13, 12], [13, 14], [15, 13]]

我希望從列表中刪除子列表,包括特定元素列表中的任何值。
因此[2,1],[2,3],[13,12],[13,14]應從列表中刪除元素[2,1],[2,3],[13,12],[13,14]
最終的輸出列表應為[[1,0],[15,13]]

listy=[elem for elem in listy if (elem[0] not in list_of_specific_element) and (elem[1] not in list_of_specific_element)]

使用列表理解單行

你可以使用set intersection:

>>> exclude = {2, 13}
>>> lst = [[1, 0], [2, 1], [2, 3], [13, 12], [13, 14], [15, 13]]
>>> [sublist for sublist in lst if not exclude.intersection(sublist)]
[[1, 0]]

你可以寫:

list_of_specific_element = [2,13]
set_of_specific_element = set(list_of_specific_element)
mylist = [[1, 0], [2, 1], [2, 3], [13, 12], [13, 14], [15, 13]]
output = [
    item
    for item in mylist
    if not set_of_specific_element.intersection(set(item))
]

這使:

>>> output
[[1, 0]]

這使用集合,集合交集和列表理解。

一個簡單的列表解決方案:

list = [x for x in list if all(e not in list_of_specific_element for e in x)]

你真的不應該把它list

過濾器和lambda版本

list_of_specific_element = [2,13]
list = [[1, 0], [2, 1], [2, 3], [13, 12], [13, 14], [15, 13]]

filtered = filter(lambda item: item[0] not in list_of_specific_element, list)

print(filtered)

>>> [[1, 0], [15, 13]]

你可以使用list comprehensionany()來做這個例子:

list_of_specific_element = [2,13]
# PS: Avoid calling your list a 'list' variable
# You can call it somthing else.
my_list = [[1, 0], [2, 1], [2, 3], [13, 12], [13, 14], [15, 13]]
final = [k for k in my_list if not any(j in list_of_specific_element for j in k)]
print(final)

輸出:

[[1, 0]]

我猜你可以用:

match = [2,13]
lst = [[1, 0], [2, 1], [2, 3], [13, 12], [13, 14], [15, 13]]

[[lst.remove(subl) for m in match if m in subl]for subl in lst[:]]

演示

暫無
暫無

聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.

 
粵ICP備18138465號  © 2020-2024 STACKOOM.COM