Converting string (with list of list) to list

Question

I need to convert a string which has nested lists in it, into a list Is there a way to do this without the use of eval() and non standard python libraries? An example would be:

input = '[4,[5,6],7,[8,[9,10]],11,12,[13,14]]'
output = [4,[5,6],7,[8,[9,10]],11,12,[13,14]]

iGian · Accepted Answer · 2021-04-09 06:00:17Z

1

To convert the string

without the use of eval() and non standard python libraries

you could make use of json, which is part of the Python Standard Library:

import json

input_as_string = '[4,[5,6],7,[8,[9,10]],11,12,[13,14]]'
input_as_list = json.loads(input_as_string)

print(input_as_list.__class__)
#=> <class 'list'>

answered Apr 9, 2021 at 6:00

iGian

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