My code if to flatten a shllow list:- I am getting an error of
int object is not subscriptable
l = eval(input("Enter a nested list : "))
a = len(l)
for x in range(0,a):
a[x]+=a[x]
print(l)
3 Answers
Use below code:
l = list(map(int, input("Enter a nested list : ").split()))
total = 0
for i in l:
total += i
print(total)
Output
Enter a nested list : 1 2 3
6
Comments
First take the input as a string by str() then after you have stored it in l, convert it to a list using the list().
You can also directly convert the input to a list by list(input("text"))
1 Comment
Devesh Kumar Singh
It will be helpful if you can provide some code to the OP to provide how whatever you have described works
l =list( map( int, input("Enter a nested list : ").split() ))
print(sum(l))
1). Here you have to input values after pressing space, like 25 then press space then next number and so on.
2). It will give you the sum of the list, which is the same as flatten of the list.
a = len(l)a is an integer.a[x]makes no sense. Did you meanl[x]?input. You probably meanl[x]instead ofa[x].evalis dangerous to use with user inputs.input()meanteval(input()). Looking backwards it was almost stupid :) Although, I'd sayevalis pretty fine as long as it doesn't appear in production code, and is used as a way to quickly test language features. That said, if the goal is just to parse some nested list of integers, floats, or strings,json.loads(input())might be best.