FAQ: Collections - Review of Specialized Containers

This community-built FAQ covers the “Review of Specialized Containers” exercise from the lesson “Collections”.

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This exercise can be found in the following Codecademy content:

Learn Intermediate Python 3

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I’m doing the final part of the lesson of the collections. This is my code:

from collections import deque, namedtuple

overstock_items = [['shirt_103985', 15.99],

                    ['pants_906841', 19.99],

                    ['pants_765321', 15.99],

                    ['shoes_948059', 29.99],

                    ['shoes_356864', 9.99],

                    ['shirt_865327', 10.99],

                    ['shorts_086853', 9.99],

                    ['pants_267953', 21.99],

                    ['dress_976264', 32.99],

                    ['shoes_135786', 17.99],

                    ['skirt_196543', 12.99],

                    ['jacket_976535', 26.99],

                    ['pants_086367', 30.99],

                    ['dress_357896', 29.99],

                    ['shoes_157895', 14.99]]

# Write your code below!

split_prices = deque()

ClothesBundle = namedtuple("ClothesBundle", ["bundle_items", "bundle_price"])

bundles = []

promoted_bundles = []

# sorting prices in split_prices

for item in overstock_items:

  if item[-1] > 20:




# loop to make bundles

while len(split_prices) >= 5:

  price = 0

  items = []

  for i in range(3):

    t_price = split_prices.pop()


    price += t_price[-1]

  for i in range(2):

    t_price = split_prices.popleft()


    price += t_price[-1]

  bundles.append(ClothesBundle(items, price))

# check if bundle is over $100

for bundle in bundles:

  if bundle.bundle_price > 100:


# printing the result


for bundle in promoted_bundles:


Whenever I run this code on the last step I get the error: Did you print out promoted_bundles? When I’m clearly printing out the promoted bundles. I’ll have to copy the solution to progress, but could any of you tell if my code is wrong?

This is the link to the lesson: https://www.codecademy.com/courses/learn-intermediate-python-3/lessons/collections-python/exercises/review-of-specialized-containers-python