合并 Python 字典 [英] merging Python dictionaries

问题描述

我正在尝试按如下方式合并以下 python 词典:

I am trying to merge the following python dictionaries as follow:

dict1= {'paul':100, 'john':80, 'ted':34, 'herve':10}
dict2 = {'paul':'a', 'john':'b', 'ted':'c', 'peter':'d'}

output = {'paul':[100,'a'],
          'john':[80, 'b'],
          'ted':[34,'c'],
          'peter':[None, 'd'],
          'herve':[10, None]}

有没有一种有效的方法来做到这一点?

Is there an efficient way to do this?

推荐答案

output = {k: [dict1[k], dict2.get(k)] for k in dict1}
output.update({k: [None, dict2[k]] for k in dict2 if k not in dict1})

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