获取字典名称 [英] Get name of dictionary

问题描述

我发现自己需要遍历由字典组成的列表，并且每次迭代都需要迭代所用词典的名称.

I find myself needing to iterate over a list made of dictionaries and I need, for every iteration, the name of which dictionary I'm iterating on.

这里是MWE(字典的内容与本例无关):

Here's an MWE (the contents of the dicts are irrelevant for this example) :

dict1 = {...}
dicta = {...}
dict666 = {...}

dict_list = [dict1, dicta, dict666]

for dc in dict_list:
    # Insert command that should replace ???
    print 'The name of the dictionary is: ', ???

如果我只使用dc，其中???是，它将打印字典的全部内容.如何获得正在使用的词典的名称?

If I just use dc where ??? is, it will print the entire contents of the dictionary. How can I get the name of the dictionary being used?

推荐答案

不要使用dict_list，如果需要它们的名称，请使用dict_dict.但是，实际上，您实际上不应该这样做.不要在变量名中嵌入有意义的信息.很难得到.

Don't use a dict_list, use a dict_dict if you need their names. In reality, though, you should really NOT be doing this. Don't embed meaningful information in variable names. It's tough to get.

dict_dict = {'dict1':dict1, 'dicta':dicta, 'dict666':dict666}

for name,dict_ in dict_dict.items():
    print 'the name of the dictionary is ', name
    print 'the dictionary looks like ', dict_

或者制作一个dict_set并遍历locals()，但这比罪恶丑陋.

Alternatively make a dict_set and iterate over locals() but this is uglier than sin.

dict_set = {dict1,dicta,dict666}

for name,value in locals().items():
    if value in dict_set:
        print 'the name of the dictionary is ', name
        print 'the dictionary looks like ', value

再次:比罪恶丑陋，但确实有效.

Again: uglier than sin, but it DOES work.

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