将字符串转换为对象名称

问题描述

在这方面我需要帮助.如何将字符串转换为变量/对象/实例名称，因为我不知道如何对其进行分类.
假设我的代码是:

I needed help on this one. How do I convert a string into a variable/object/instance name, since I don't know how to categorize this.
Assuming my code is:

a = {}
b = {}

class Test:
    def getKeys(self, var):
        return var.keys() #where var refers to the dictionary and its a string initially

推荐答案

自从我用Python做过任何事情以来，这一直很长，但是我确实记得曾经遇到过这个问题.我建议您研究 eval() 函数.

It's been forever since I've done anything with Python but I do remember having this problem once. I suggest you look into the eval() function.

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