How to move all items one item forward in a list

I’m trying to do the following (consider this list):

['Hello, 'Hi', 'Nice', Cool']

I would like to change ‘Hi’ to ‘Love’

But, I wouldn’t want it to stay that way:

['Hello, 'Love', 'Nice', Cool']

I’m trying to get ahead of the others, even cropping the last one, getting like this:

['Hello, 'Love', 'Hi', Nice']

Note that Hi passed one along with the entire list, that’s what I want!

Anybody know? Thanks in advance!

>Solution :

old_list = ['Hello', 'Hi', 'Nice', 'Cool']
new_item_index = 1
new_item = 'Love'

new_list = old_list[0:new_item_index] + [new_item] + old_list[new_item_index+1:]
print(old_list)
print(new_list)

['Hello', 'Hi', 'Nice', 'Cool']
['Hello', 'Love', 'Hi', 'Nice']