在python中定义嵌套字典

本文介绍了在python中定义嵌套字典的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想在python中定义一个嵌套字典。我尝试了以下操作：

I want to define a nested dictionary in python. I tried the following:

keyword = 'MyTest' # Later I want to pull this iterating through a list key = 'test1' sections = dict(keyword={}) #This is clearly wrong but how do I get the string representation? sections[keyword][key] = 'Some value'

我可以这样做：

sections = {} sections[keyword] = {}

但是Pycharm中有一个警告，说可以通过字典标签进行定义。

But then there is a warning in the Pycharm saying it can be defined through dictionary label.

有人可以指出如何实现此目标吗？

Can someone point out how to achieve this?

推荐答案

keyword = 'MyTest' # Later I want to pull this iterating through a list key = 'test1' sections = {keyword: {}} sections[keyword][key] = 'Some value' print(sections) {'MyTest': {'test1': 'Some value'}}

dict（keyword = {}）创建一个字符串为 keyword 的字典

dict(keyword={}) creates a dict with the string "keyword" as the key not the value of the variable keyword.

In [3]: dict(foo={}) Out[3]: {'foo': {}}

在哪里使用dict实际使用变量的值如上所述。

Where using a dict literal actually uses the value of the variable as above.