Question

我试图将几个元素附加到列表list_accepted_outsidenestant。当我尝试打印列表list_accepted_outsidenestant时，我得到：list_accepted_outsidenestant- [([971, 977, 728, 740], set([728, 977, 971, 740]))]。该列表显示一个列表并设置相同的元素。谁能指出我正在做的错误？因此，我收到了错误：set_accepted_outsidenest_antlist = set(list_accepted_outsidenestant TypeError: unhashable type: 'list'

我已经展示了仅与当前问题相关的部分代码。

def leo(tag_data):
    available_ants_outside = []
    ori = []
    for id, (x, y) in tag_data:
        available_ants_outside.append(id)
        if for_coordinates_outside_nest((x, y)) is True:
            ori.append(id)
    return ori


def virgo(tag_data):
    available_ants_inside = []
    list_insidenest_ant_id = []
    set_inside_nest_ant_id = set()
    for id, (x, y) in tag_data:
        available_ants_inside.append(id)
        if for_coordinates_inside_nest((x, y)) is True:
            list_insidenest_ant_id.append(id)
            set_inside_nest_ant_id = set(list_insidenest_ant_id)
            return list_insidenest_ant_id,set_inside_nest_ant_id

 def bambino(ori,list_insidenest_ant_id):
    list_accepted_outsidenestant = []                       
    set_accepted_outsidenest_antlist = set()
    set_accepted_insidenest_antlist = set()
    if len(list_accepted_outsidenestant) < num_accepted:
        if (len(ori) > 0) or (len(list_insidenest_ant_id) >0):
            list_accepted_outsidenestant.extend(ori[0:min(len(ori),             
            num_accepted-len(list_accepted_outsidenestant))])
            set_accepted_outsidenest_antlist = set(list_accepted_outsidenestant)  
            print "list_accepted_outsidenestant-" + str(list_accepted_outsidenestant)
            set_accepted_insidenest_antlist  = set(list_insidenest_ant_id)
    return set_accepted_outsidenest_antlist,set_list_outsideant_id,set_accepted_insidenest_antlist

Answer 1

问题是您要将列表附加到列表中。您可以遍历要添加的列表：

items_to_add = ori[0:min(len(ori),             
                   num_accepted-len(list_accepted_outsidenestant))]
for item in items_to_add:
    list_accepted_outsidenestant.append(item)

或添加列表：

list_accepted_outsidenestant = list_accepted_outsidenestant + ori[0:min(len(ori), num_accepted-len(list_accepted_outsidenestant))]

或者正如布鲁诺指出的那样（甚至更好），扩展名单。

list_accepted_outsidenestant.extend(ori[0:min(len(ori), num_accepted-len(list_accepted_outsidenestant))])

Answer 2

追加功能将整体添加到其他阵列中扩展功能将add array添加到上一个数组

In [1]: a = [1,2,3,4]

In [2]: b = [10,9,8,7,6]

In [3]: a.append(b)

In [4]: a
Out[4]: [1, 2, 3, 4, [10, 9, 8, 7, 6]]

In [5]: c = [1,2,3,4]

In [6]: c.extend(b)

In [7]: c
Out[7]: [1, 2, 3, 4, 10, 9, 8, 7, 6]

希望此代码可以帮助您

根据条件将元素添加到列表中

2 个答案: