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Python Python Collections (Retired) Lists Redux Shopping List Take Three

Srikanth Srinivas
Srikanth Srinivas
1,465 Points

This sort of shopping list would still do the same things as yours when i compile it?

shopping_list = []

print("This is a shopping list.")
itemtoadd = input("Enter an item you wish to add, or type DONE to exit.")

while itemtoadd != "DONE":

    index = int(input("What number would you like to place this item in your list?"))
    shopping_list.insert((index)-1,itemtoadd) 
    print("You have entered {}. Your list now contains {} items.".format(itemtoadd,(len(shopping_list))))
    itemtoadd = input("Enter an item you wish to add, or type DONE to exit.")

if itemtoadd == "DONE":
    print("Your list now contains the following items: {}".format(",".join(shopping_list)))

I wrote this on an online compiler and it seems to work the same way yours does, but with reduced lines of code. Am I missing something? Thanks!

1 Answer

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher

It'll accomplish the same goals, more or less, but doesn't take into account the fact that people might enter non-ints when you ask for an index or might not want to put the new item somewhere special.

You don't need that last if, either. Once the while loop ends, the "DONE" is implied and that code should run.

Good job coming up with another solution!