How to take numbers if the stdin is of this form: [2,7,11,15] in python and java

Question

How to take numbers if the stdin is of this form: [2,7,11,15]

l = list(map(int, input().split(','))) ; print(l)

input : [2,7,11,15]

ValueError: invalid literal for int() with base 10: '[2'

Does this answer your question? [Convert string representation of list to list](https://stackoverflow.com/questions/1894269/convert-string-representation-of-list-to-list) — Deadpool, Oct 30 '19 at 17:42

azro · Answer 1 · 2019-10-30T17:49:23.607

3

If you split using only the comma, you keep the [ and ]

value.split(',') >> ['[2', '7', '11', '15]']

You can do one of these ways :

edited Oct 30 '19 at 17:49

answered Oct 30 '19 at 17:43

azro

score 0 · Answer 2 · answered Oct 30 '19 at 18:03

As others stated, rather use ast.literal_eval or some kind of an own parser. But for the sake of your simple example, you could go for:

somestring = "[2,7,11,15]"

somelist = list(map(int, map(str.strip, somestring.strip("[]").split(","))))
print(somelist)
# [2, 7, 11, 15]

2 Answers2