列出到字符串以列出Python 3 [英] List to String to List Python 3

问题描述

我需要将列表转换为字符串，然后执行相反的过程.请注意，一个脚本将转换List-> String，而另一个脚本将转换String-> List，因此将列表存储在变量中不是解决方案.并非在所有情况下都使用split('，')或类似方法.因此，作为挑战，我邀请您在以下示例中进行转换:

I need to convert a list into a string and then do the reverse process. Note that one script will convert List->String and another script will convert String->List, so store the list in a variable is not a solution. Use split(', ') or similar is not a solution either in all cases. So, as a challange I invite you to do the conversion in the following example:

l = ['ab,.cd\'ac"', b'\x80', '\r\nHi, !', b'\x01']
str_l = str(l)

我尝试了一种可行的方法:使用exec()内置函数，但是人们说这不是一个好习惯，因此我邀请您给我另一种选择.我在函数内使用exec()时也遇到问题，但这是您可以检查的另一个问题->

I have tried one thing that worked: using exec() built-in function but people says is not a good practice, so I invite you to give me another alternative. Also I am having problems using exec() inside a function but that's another question that you can check -> Using exec() inside a function Python 3

推荐答案

这应该有效:

str_l = ("|").join(l)

哪个给您您的第一个字符串.然后做:

Which gives you your first string. Then do:

l_2 = str_l.split("|")

哪个会给您第二个列表.

Which gives you your second list.

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