Search For An Elemnent In A Tuple

Question

how do i find a certain element in a tuple and print out the index of the element.


a = (1,2,3,4)
b = int(input('enter the element you want to find'))
if b in a :
    print('found')

here is the simple program. now how do print the index of the element whic needs to be searched

Does this answer your question? [Finding the index of an item in a list](https://stackoverflow.com/questions/176918/finding-the-index-of-an-item-in-a-list) — Mast, Feb 01 '23 at 20:25

score 2 · Accepted Answer · answered Feb 01 '23 at 14:46

2

Use .index:

if b in a:
    print(a.index(b))

answered Feb 01 '23 at 14:46

Unmitigated

Talha Tayyab · Answer 2 · 2023-02-01T15:34:17.810

1

You can use enumerate as well:

a = (1,2,3,4)
b = int(input('enter the element you want to find'))
for x,y in enumerate(a):
    if b == y:
        print(x)

Edit:

to find the multiple indices of an element:

Suppose we have b at 3 positions, now if you want to find all the three indices then:

a = (1,2,3,4,5,6,2,8,2)
b = 2

for i, x in enumerate(a):
    if x == b:
        print(i)
1
6
8

with list comprehension :

[i for i, x in enumerate(a) if x == b]
#[1, 6, 8]

edited Feb 01 '23 at 15:34

answered Feb 01 '23 at 14:53

Talha Tayyab

hi, thanks!....btw can u say how to do for nested lists/tuple ? – ganesh murthy Feb 01 '23 at 15:22
yes, you can! you can find the index for multiple instances as well – Talha Tayyab Feb 01 '23 at 15:23
how to do it...i tried but not sure bout it – ganesh murthy Feb 01 '23 at 15:26
one moment I will give you the code. – Talha Tayyab Feb 01 '23 at 15:29
@ganeshmurthy please see now – Talha Tayyab Feb 01 '23 at 15:34
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/251551/discussion-between-ganesh-murthy-and-god-is-one). – ganesh murthy Feb 01 '23 at 15:48

score 0 · Answer 3 · answered Feb 01 '23 at 14:52

0

Use:

print(a.index(b))

answered Feb 01 '23 at 14:52

Mahmoud Elbanna

1

this answer is already present ! – Talha Tayyab Feb 01 '23 at 14:53
I posted it before but I have a slow internet. I didn't see the other answer Should I remove my answer ? – Mahmoud Elbanna Feb 01 '23 at 15:37

3 Answers3