convert str to list in python

Question

I have a python str object like this and i want to convert this into a list

l = "['Incorrect password.$', 'Login failed']"  --- type <str>

expected output

l = ['Incorrect password.$', 'Login failed']  ---- type <list>

Trial 1:

p = list(l)

it makes l as ['[', "'", 'I', 'n', 'c', 'o', 'r', 'r', 'e', 'c', 't', ' ', 'p', 'a', 's', 's', 'w', 'o', 'r', 'd', '.', '$', "'", ',', ' ', "'", 'L', 'o', 'g', 'i', 'n', ' ', 'f', 'a', 'i', 'l', 'e', 'd', "'", ']']

Trial 2:

  l.split(',')

second method is not favourable as the list element itself may contain comma in between.

How should i proceed? Any hint is appreciated.

Well, you'd `eval()` that string if you want to interpret it as if it was actually python code... but why are you doing this? — Jeff Mercado, Feb 23 '18 at 17:24
if every string you want is in between this ‘ you can parse it. and check that character if it is escaped every time — MrMuMu, Feb 23 '18 at 17:26

Rakesh · Accepted Answer · 2018-02-23T17:29:00.073

5

Use the ast module

import ast
l = "['Incorrect password.$', 'Login failed']"
print l, type(l)
l =  ast.literal_eval(l)
print l, type(l)

Output:

['Incorrect password.$', 'Login failed'] <type 'str'>
['Incorrect password.$', 'Login failed'] <type 'list'>

edited Feb 23 '18 at 17:29

answered Feb 23 '18 at 17:24

Rakesh

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score 1 · Answer 2 · edited Feb 23 '18 at 17:27

1

eval(l)

eval() is a built-in function that will evaluate the code.

edited Feb 23 '18 at 17:27

Simon

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answered Feb 23 '18 at 17:27

Oren E

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convert str to list in python

2 Answers2