如何删除引号并在python中检索列表？

Question

I have a list as a string like this:

"['USA', 'Canada', 'Mexico', 'Brazil']"

I want to retrieve the list from the string, like this:

['USA', 'Canada', 'Mexico', 'Brazil']

How can I do that? Itertools or list function have not given me the proper result. Thanks

Answer 1

you can evaluate the string to a list using eval :

 eval('["USA", "Canada", "Mexico", "Brazil"]')

Executing this on python shell, gives a list:

>>> eval('["USA", "Canada", "Mexico", "Brazil"]')
['USA', 'Canada', 'Mexico', 'Brazil']
>>> 

Answer 2

You can use literal_eval from ast module like this example:

from ast import literal_eval as le
data = le('["USA", "Canada", "Mexico", "Brazil"]')
print(data)

Output:

['USA', 'Canada', 'Mexico', 'Brazil']

Also, don't use eval() , use literal_eval() instead. See this answer for more details.