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ISTM133P: Lesson 8 Assignment © 2021 Dr. Wayne Machuca
ISTM133P: Lesson 8 Assignment
Creating Lists / Program Organization – Calorie Counter Program
Background:
The purpose of this advanced/intermediate assignment is to demonstrate basic list functionality, and to
organize the program to take advantage of functions and Pythons natural scripting ability.
In this program, you will use the Calorie Counter program, which was part of your in-lesson work, and
submit it for your assignment. You will be redesigning the base program, creating a number of new
functions, and adding lists capability in this assignment.
Note:
As usual, this program can be solved in several ways. As this assignment is designed to allow the student
to demonstrate a specific set of outcomes, your solution should follow these guidelines. Expansion is
allowed. If you include new or unusual techniques, be sure to identify these in the code AND in the
message box in Blackboard.
Instructions:
Main Program
Design your main program as follows:
while True:
choice = disp_menu()
if choice == "a":
add_process()
elif choice == "d":
del_item()
elif choice == "q":
eak
disp_meal()
Major Functions
Create functions using the following guidelines:
disp_menu()
This function displays user options (a = add, d = delete, m = display meal, q = quit). Invalid data entry will
esult in an e
or message and request to re-enter. Valid data entry will be returned to the call.
disp_meal()
This is a no data in / no data out function which will display all items in the meal and determine item and
meal calories.
add_process()
This function controls item data entry. Will call at least the following sub-functions:
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ISTM133P: Lesson 8 Assignment © 2021 Dr. Wayne Machuca
input_name()
This function controls the valid data entry of the item name. Item names must be 20 characters or less.
On invalid entry, respond with an appropriate message and request re-entry.
calc_cals(string, grams)
This function determines the number of calories based on grams and element. This is called during the
calorie calculation activity. You will pass each of the gram amounts to the same function. This function
will receive the grams and determine whether to multiply by 4 or by 9. You will also pass the element
type using the symbols “c” for ca
s, “f” for fats, and “p” for proteins. The calories for that element are
eturned to the call.
input_grams(string)
This function controls data validation for the gram integer data entry. Use this same function for all
three elements.
add_item(string, calories)
This function controls adding the item name and co
esponding calories to the appropriate lists.
Hint:
Remember to make two lists, one for item names and one for item calories; and, define these lists
globally.
del_item()
This function is called from the main program and controls deleting items from the meal list. During this
function, provide the user with the meal list. Prompt the user to choose which item to delete based on
item number.
Data validation:
• If there are no items in the meal, display an appropriate message and do not display the meal
lists
• Delete choice should be a valid integer
• Delete choice must exist on the list. Do not allow the user to choose an item which does not
exist.
Upon valid data, verify the user’s intent with an “Are you sure…?” message. Valid entries are “y” or
“n”. With an “n” entry, respond with an appropriate message such as “Item [name] was not deleted…”.
With an “y” entry, execute the delete action and respond with an appropriate message such as “Item
[name] was deleted…”, and then either display the cu
ent meal, or, if the meal is empty, an appropriate
message.
Lists
Create 2 lists to control your meal menu. You may call these anything you want. For this assignment use
item_list[ ] to contain the item names, and cals_list[ ] to contain the number of calories for each item.
These lists must be maintained together.
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ISTM133P: Lesson 8 Assignment © 2021 Dr. Wayne Machuca
Output
While actual output solutions may vary, here is a sample output for the addition of a second item into
the meal:
What would you like to do?
a = add an item
d = delete an item
m = display the meal so far
q = quit
make a selection>a
please enter the item> banana
enter grams of ca
s> 2
enter grams of fats> 2
enter grams of protein> 2
total calories for banana are 34
would you like to include banana? (y/n)> y
item banana entered.
Meal Calorie Counter
Num Item Cals
--- ---- ----
1. apple 17
2. banana 34
Your meal has 2 items for a total of 51 calories
--------------------
What would you like to do?
a = add an item
d = delete an item
m = display the meal so far
q = quit
make a selection
Testing
This lab requires a complete redesign of your lab. For credit, you must demonstrate that all aspects of
this program function appropriately. In your test proof, be sure to include:
• Proper entry and functioning of valid data
• Invalid data attempts on all inputs, include “fuzzy” data attempts
• Demonstration of multiple entries and accumulation.
Insufficient testing proof will result in a diminished score.
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ISTM133P: Lesson 8 Assignment © 2021 Dr. Wayne Machuca
Submission
Follow the instructions in the video “How to submit homework” to complete your homework solution.
Complete and submit the calorie counter program only.
Save this document for your records.
Remember, your Python code MUST have your name and identification banner as described in the
lectures.
Value
This assignment is worth 100 points. Notice increased lab value.
Note: This document was checked for ADA Accessibility on June 15, 2020.
Due to the programmatic nature of Python, portions of this document may be unintelligible to some
screen readers.
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ISTM133P: Lesson 8 Assignment © 2021 Dr. Wayne Machuca
ISTM133P: Lesson 9 Assignment
Creating Lists / Program Organization – Girl Scout Cookie Program
Background:
The purpose of this advanced/intermediate assignment is to demonstrate 2-Dimensional List
functionality, and to organize the program to take advantage of functions and Pythons natural scripting
ability.
In this program, you will redesign the GSC program, which was part of your in-lesson work, based upon
the structural changes identified in Lesson 8. Your will thoroughly test and submit this program for your
assignment. Your redesign will create a number of new functions, and add 2-dimensional lists capability.
Note:
As usual, this program can be solved in several ways. As this assignment is designed to allow the student
to demonstrate a specific set of outcomes, your solution should follow these guidelines. Expansion is
allowed. If you include new or unusual techniques, be sure to identify these in the code AND in the
message box in Blackboard.
Instructions:
Main Program
Design your main program as follows:
# Primary loop
choice = "" # seeding value
while choice.lower() != "q":
#while True:
XXXXXXXXXXchoice = disp_menu()
XXXXXXXXXXif choice == "a":
XXXXXXXXXXadd_process()
XXXXXXXXXXelif choice == "d":
XXXXXXXXXXdelete_process()
XXXXXXXXXXelif choice != "q":
XXXXXXXXXXdisp_order()
Lists
There should be five lists for this program.
• order_list – this is the 2D list for controlling the order collection
• menu_list – this list contains the processing selection options and is displayed in disp_menu()
• flavor_list – this list contains the names of the cookie flavors available for purchase. Flavors will
e:
o Savanahs, Thin-Mints, Tag-a-longs, Do-Si-Dos, PeanutButter (spelling is critical)
• up_charge_list – this list contains the names of cookies which sell at $5.00 per box. All other
flavors sell at $3.50 per box. Flavors will be
o Tag-a-longs, PeanutButter, LemonDos
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ISTM133P: Lesson 8 Assignment © 2021 Dr. Wayne Machuca
• detail_list – this is the 1D list containing the item selection and is input for the order_list. Fields
in this list will be
o choice – the cookie flavor identified by it’s index in the flavor_list
o qty – the quantity of boxes ordered
o price – the price per box for this flavor
Major Functions
Create functions using the following guidelines:
disp_menu()
This function displays user options (a = add, d = delete, o = display order, q = quit). Invalid data entry will
esult in an e
or message and request to re-enter. Valid data entry will be returned to the call.
disp_flavors()
This function displays the cookie flavors available for selection. No data is passed to or returned from
this function.
disp_order()
This is a no data in / no data out function which will display all items in the order; and will determine the
total number of boxes in the order, and the total price of the order. If there are no items in the meal to
display, the program will generate an e
or message to that effect.
add_process()
This function controls item data entry and will call at least the following sub-functions:
input_flavor() [subfunction of add_process]
This function controls the valid data entry of the flavor. The list of flavors is displayed in disp_flavors().
Each flavor is identified by an item number which is the list index + 1. Input must be an integer and must
e one of the numbers available in the list display. On valid entry, the choice value is