Lab 4.04 - Daily Schedule

Part 1

The goal of this lab is to practice using and accessing items from lists of lists.

You have a few errands to run and have created a few shopping list to help you remember what to buy. You stored your notes in a nested list, shopping_cart. This program will allow the user to ask for a specific item by it's index or update what items are in the cart. The user can request you print all the items in a specific shopping list.

Schedule

shopping_cart = [
['tooth paste', 'q-tips', 'milk'],
['milk', 'candy', 'apples'],
['planner', 'pencils', 'q-tips']
]

User Inputs

  • update
    • The program will ask which shopping list the user wants to update and will also request which position it should update.
  • print
    • The program will ask which shopping list the user wants to print from and afterwards will request which position it should print.
  • print all
    • The program will ask which shopping list the user wants to print and will print all of the activities associated with that shopping list.

Functions

  • update_list
    • Takes in an integer representing the index of the shopping list, an integer representing the index of the item to update, and a string representing the new item to add to that shopping list.
  • print_all
    • Takes an int representing the index of the shopping list to print.
  • Feel free to add more functions as you see fit

Example

>>>What would you like to do? print all
Which shopping list would you like to print? 1
tooth paste, q-tips, gum

Part 2

In this part of the lab you will go through your shopping list program and perform a few different calculations.

  1. Create a function, all_in_one, that will put all the shopping lists into a single list using a for loop.
  2. Create a function, count_q_tips, which will go through all items of the list and keep a count of how many times 'q_tips' occurs.
  3. In order to make the shopping lists more calcium rich, write a function, drink_more_milk, that adds 'milk' to each of the lists (unless it's already there).
  4. You can't have milk without cookies. Write a function if_you_give_a_moose_a_cookie, that will go through every element of schedule and update 'milk' to be 'milk and cookies'.

Bonus!

Write a function to reverse the order of the lists and items in shopping_cart.

The list should look like the following when printed: 

schedule = [
['q-tips', 'pencils', 'planner'],
['apples', 'candy', 'milk'],
['milk', 'q-tips', 'toothe paste']
]

Tip

Last item can be gotten by my_list[-1]

Second to last element: my_list[-2]

Third to last element: my_list[-3]