Question

我知道这个问题已被问到，但我找不到任何将值附加到列表而不是创建列表列表的内容。我有两个具有相同值的词典：

dictionary1 = {'1':'one', '2':'two', '3':'three'}
dictionary2 = {'1':['uno'], '2':['dos'], '3':['tres']}

我需要它来回复：

combined = {'1':['one','uno'] '2':['two','dos'] '3':['three',tres']}

到目前为止，我尝试的所有内容都会返回：

combined = {'1':['one'['uno']] '2':['two'['dos']] '3':['three'[tres']]}

有嵌套列表。如何将字典1的值附加到dictionary2列表中？请帮助我，我知道这很简单，但我不知道该怎么做。谢谢

这是我的代码：

    combined = {key:[dictionary1[key], dictionary2[key]] for key in dictionary1}

Answer 1

实际上，您的代码已经正确了吗？

>>> dictionary1 = {'1':'one', '2':'two', '3':'three'}
>>> dictionary2 = {'1':'uno', '2':'dos', '3':'tres'}
>>> combined = {key:[dictionary1[key], dictionary2[key]] for key in dictionary1}
>>> combined
{'3': ['three', 'tres'], '2': ['two', 'dos'], '1': ['one', 'uno']}

除此之外你确定你没有做任何其他事吗？

Answer 2

dictionary1 = {'1':'one', '2':'two', '3':'three'}
dictionary2 = {'1':['uno'], '2':['dos'], '3':['tres']}

combined = {key:[dictionary1[key], dictionary2[key][0]] for key in dictionary1}

只需从dictionary2的值中检索第0个索引，考虑它们都是长度为1的列表。

否则，这将起作用：

combined = {key:[dictionary1[key]] + dictionary2[key] for key in dictionary1}

这基本上会在dictionary1的值中创建一个元素列表，并将其与已列出的dictionary2值组合在一起。

Answer 3

dictionary1 = {'1':'one', '2':'two', '3':'three'}
dictionary2 = {'1':'uno', '2':'dos', '3':'tres'}


z = zip(zip(dictionary1.keys(), dictionary2.keys()),
        zip(dictionary1.values(), dictionary2.values()))

dual = {}

for el in z:
    dual[el[0][0]] = el[1]


print(list(dual.items()))

<强> OUPUT

[（＆＃39; 2＆＃39;，（＆＃39; 2＆＃39;，＃39; dos＆＃39;）），（＆＃39; 1＆＃39;，（＆＃39;一个＆＃39;，＆＃39; uno＆＃39;），（＆＃39; 3＆＃39;，（＆＃39;三＆＃39;，＆＃39; tres＆＃39;））]

按键合并两个词典

3 个答案: