Create list from for loop

Question

this is my code so far

print("L = ",[4,10,4,2,9,5,4])

Startlist = [4,10,4,2,9,5,4]
usrinput = int(input("Enter an element to search for in the list: "))
for i in [i for i,x in enumerate(Startlist) if x == usrinput]:
    print(i)

I'm trying to however make a new list from the for loops printed numbers.This is the sample run i got by entering 4

L =  [4, 10, 4, 2, 9, 5, 4]
Enter an element to search for in the list: 4
0
2
6

how could i turn the 0 2 6 into [0,2,6]?

Thanks for any responses

You already have the list here: [i for i,x in enumerate(Startlist) if x == usrinput] — karthikr
– karthikr, Commented Oct 8, 2013 at 18:25

Jess · Accepted Answer · 2013-10-08 18:26:11Z

3

You already made the list! The heavy lifting in your code is in the temporary array you created and iterated over.

 newlist = [i for i,x in enumerate(Startlist) if x == usrinput]

answered Oct 8, 2013 at 18:26

Jess

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1 Comment

user2840144 Over a year ago

thanks! yeah i clearly was following traditional for loop structure too much to notice there was no need to print(i) separately

Rohit Jain · Accepted Answer · 2013-10-08 18:25:19Z

3

Just print the list comprehension:

print([i for i,x in enumerate(Startlist) if x == usrinput])

answered Oct 8, 2013 at 18:25

Rohit Jain

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1 Comment

Marcin Over a year ago

@user2840144 You should probably accept one of these answers, by clicking the tick mark next to the one you like.

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