Extract array from string

Question

I have a string that looks like this:

arr = "[[[234],[432], ..., [523]]]"

I want to extract the array in this string so that it becomes:

arr = [[[234], [432], ..., [523]]]

how do I go about doing this?

For simple data like that there is `ast.literal_eval`. For more complex things there is the **very dangerous** `eval`. — Michael Butscher, Apr 03 '20 at 20:23
Are the `...` part of string or just a placeholder? if it's the latter, did you try *ast.literal\_eval*? — CristiFati, Apr 03 '20 at 20:24

ihavenoidea · Answer 1 · 2020-04-03T20:31:36.287

2

arr = "[[[234],[432], [523]]]"

arr = eval(arr)

edited Apr 03 '20 at 20:31

answered Apr 03 '20 at 20:24

ihavenoidea

score 2 · Accepted Answer · answered Apr 03 '20 at 20:25

2

Keeping away from dangers of eval you can use literal_eval

ast.literal_eval("[[[234],[432],[523]]]") #[[[234], [432], [523]]]

answered Apr 03 '20 at 20:25

mad_

score 1 · Answer 3 · answered Apr 03 '20 at 20:25

1

Try eval() function of python.

>>> arr=eval("[[[234],[432],[523]]]")
>>> arr
[[[234], [432], [523]]]

answered Apr 03 '20 at 20:25

Hamza Khurshid

3 Answers3