Does this code change the value of each element in the list?

Question

Can you explain to me why this code does not change the value of each element in the list?

li = [3,4,5]

for elm in li:
    elm = 1
print(li)

score 0 · Answer 1 · answered Jul 19 '20 at 14:50

0

No, it does not. it changes the value of the elm variable. To change the value of the list element you have to use following code.

li = [3,4,5]

for i in range(len(li)):
    li[i] = 1
print(li)

answered Jul 19 '20 at 14:50

Aleksander Ikleiw

yes but in each iteration the value of the elm is 3,4, and 5 right? – Navy Alsk Jul 19 '20 at 14:53
in each iteration value changes to 1. Here I do not iterate over value - I iterate over length of a `li` – Aleksander Ikleiw Jul 19 '20 at 14:55

1 Answers1