Question

所以我有两本词典。

Dictionary 1 looks like this: {'aaien': ['01, 02, 12'], 'aan': ['10']}
Dictionary 2 looks like this: {'01:': ['pronoun'], '02': ['I'],'03': ['we']}

现在我想编写一个结合了这两个词典的函数或代码，结果应该是： 'aaien'：['代词，我，影响']

这是我到目前为止所得到的：

for word, nums in d1.items():
    print word, "->",
    for num in nums:
        if d2.has_key(num):
            print d2[num],
    print

Answer 1

使用collections.defaultdict()：

In [60]: dic1= {'aaien': ['01, 02, 12'], 'aan': ['10']}

In [61]: dic2={'01': ['pronoun'], '02': ['I'],'03': ['we']}   #  after fixing '01:'

In [62]: dic3=defaultdict(list)

In [63]: for x,y in dic1.items():
    keys=map(str.strip,y[0].split(","))  #split at ",", and then apply str.strip
    for k in keys:                        
        if k in dic2:                    #if key is present in dic2
            dic3[x].extend(dic2[k])
   ....:             

In [64]: dic3
Out[64]: defaultdict(<type 'list'>, {'aaien': ['pronoun', 'I']})

Answer 2

我建议你先修复你的dicts，然后使用dict.setdefault：

d1 = {k:map(str.strip,v[0].split(',')) for k,v in d1.iteritems()}
d2 = {k.strip(':'):v for k,v in d2.iteritems()}

result = {}
for k,v in d1.iteritems():
    for i in v:
        if i in d2:
            result.setdefault(k,[]).extend(d2[i])
print result

输出：

{'aaien': ['pronoun', 'I']}

Answer 3

首先“修复”你的词汇（正如其他人所建议的那样）我希望他们看起来像这样。

d1 = {'aaien': ['01', '02', '12'], 'aan': ['10']}
d2 = {'01': 'pronoun', '02': 'I', '03': 'we'}

然后试试这个：

print {k: [d2.get(l) for l in v] for k, v in d1.iteritems()}
{'aaien': ['pronoun', 'I', None], 'aan': [None]}

值已被替换，无值放在没有可用值的位置。

如果您真的打算让查找字典（d2）值为值列表，我需要更多信息。你想要列表还是扁平化？

即。查找

d2 = {'01': ['pronoun'], '02': ['I', 'spam'], '03': ['we']}

你想要哪一个

{'aaien': ['pronoun', 'I', 'spam', None], 'aan': [None]}
{'aaien': ['pronoun', ['I', 'spam'], None], 'aan': [None]}

结合两个词典

3 个答案: