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Yasser Shaaf
UX Design Techdegree Student 13,865 PointsHelp
Help
def show_help():
# print out instructions on how to use the app
print("What should we pick up at the store?")
print("""
Enter 'DONE' to stop adding items.
Enter 'HELP' for this help.
Enter 'SHOW' to see your current list.
""")
def show_list(shopping_list):
# print out the list
print("Here's your list:")
for item in shopping_list:
print(item)
def add_to_list(shopping_list, new_item):
# add new items to our list
shopping_list.append(new_item)
print("Added {}. List now has {} items.".format(new_item, len(shopping_list)))
return shopping_list
show_help()
# make a list to hold onto our items
shopping_list = []
while True:
# ask for new items
new_item = input("> ")
# be able to quit the app
if new_item == 'DONE':
break
elif new_item == 'HELP':
show_help()
continue
elif new_item == 'SHOW':
show_list(shopping_list)
continue
add_to_list(shopping_list, new_item)
show_list(shopping_list)
1 Answer
Chris Freeman
Treehouse Moderator 68,457 PointsThe quickest way to complete the challenge is to highlight lines 22 through 43, indent 4-spaces using Ctrl-] twice, then add the line def main(): above line 22.
Manually indenting all the lines is hard to get correct within the challenge. The final code should look like:
def show_help():
# print out instructions on how to use the app
print("What should we pick up at the store?")
print("""
Enter 'DONE' to stop adding items.
Enter 'HELP' for this help.
Enter 'SHOW' to see your current list.
""")
def show_list(shopping_list):
# print out the list
print("Here's your list:")
for item in shopping_list:
print(item)
def add_to_list(shopping_list, new_item):
# add new items to our list
shopping_list.append(new_item)
print("Added {}. List now has {} items.".format(new_item, len(shopping_list)))
return shopping_list
def main():
show_help()
# make a list to hold onto our items
shopping_list = []
while True:
# ask for new items
new_item = input("> ")
# be able to quit the app
if new_item == 'DONE':
break
elif new_item == 'HELP':
show_help()
continue
elif new_item == 'SHOW':
show_list(shopping_list)
continue
add_to_list(shopping_list, new_item)
show_list(shopping_list)