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Python

Posted by Ryan Di
Ryan Di
2,803 Points

my list does not show up\n after entering SHOW, nothing shows up...

shopping_list = []

def show_help():
  print("\nSeperate each item with a comma.")
  print("Type DONE to quit, SHOW to see the current list, and HELP to get this message")

def show_list():
  count = 1
  for item in shopping_list:
    print('{}: {}'.format(count, item))
    count += 1

print("Give me a list of things you want to shop for.")
show_help()

while True:
  new_stuff = input("> ")

  if new_stuff == "DONE":
    print("\nHere's your list:")
    show_list()
    break
  elif new_stuff == "HELP":
    show_help()
    continue
  elif new_stuff == "SHOW":
    show_list()
    continue
  else:
    new_list = new_stuff.split(",")
    index = input("Add this at a certain spot? Press enter for the end of the list, "
                 "or give me a number. Currently {} items in the list.".format(len(shopping_list)))
    if index:
      spot = int(index) - 1
      for item in new_list:
        shopping_list.insert(spot, item.strip())
        spot += 1
      else:
        for item in new_list:
          shopping_list.append(item.strip())

[MOD: changed markdown from html to python -cf]

1 Answer

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,468 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,468 Points

Your code is nearly correct. The last else block is indented too far and is part of the for loop. In should be unindented to like up with the if:

        if index:
            spot = int(index) - 1
            for item in new_list:
                shopping_list.insert(spot, item.strip())
                spot += 1
        else:  # <-- unindented to align with 'if'
            for item in new_list:
                shopping_list.append(item.strip())

It is recommended to use 4-space indentation to make the alignment clearer.

Ryan Di
Ryan Di
2,803 Points

Awesome! Thank you!