Product Inventory Example
This example shows a full run of the program, including all the options and features.
$ python3 inventory.py
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 3
All products currently in the inventory:
1 | Paper (Pack of 500 Sheets) | $ 5.80
2 | Scissors | $ 2.25
3 | Pen (Pack of 12) | $ 4.32
4 | Sticky notes | $ 3.00
5 | Bottled Water (Pack of 10) | $ 39.65
6 | Stapler | $ 2.89
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 1
Which file would you like to read? /usr/local/doc/inventory/large.txt
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 3
All products currently in the inventory:
2 | Fanciful Apple | $ 6.63
3 | Fantastic Apple | $ 1.61
11 | Artisanal Bagels | $ 7.66
12 | Exotic Bagels | $ 3.63
13 | Fanciful Bagels | $ 5.00
14 | Fantastic Bagels | $ 2.99
15 | Wonderful Bagels | $ 1.18
21 | Artisanal Cheese | $ 3.17
22 | Fantastic Cheese | $ 1.19
23 | Glorious Cheese | $ 7.64
24 | Wonderful Cheese | $ 8.86
31 | Artisanal French Fries | $ 5.39
32 | Fanciful French Fries | $ 4.06
41 | Artisanal Guacamole | $ 2.61
42 | Fanciful Guacamole | $ 5.49
43 | Glorious Guacamole | $ 2.33
44 | Wonderful Guacamole | $ 8.31
51 | Exotic Hummus | $ 9.11
52 | Fanciful Hummus | $ 4.41
53 | Fantastic Hummus | $ 8.77
54 | Glorious Hummus | $ 9.47
55 | Wonderful Hummus | $ 4.75
61 | Exotic Ice Cream | $ 8.00
62 | Fantastic Ice Cream | $ 6.08
63 | Glorious Ice Cream | $ 4.55
71 | Glorious Ketchup | $ 8.02
72 | High-end Ketchup | $ 4.51
81 | Artisanal Pasta | $ 1.60
82 | Fanciful Pasta | $ 2.18
91 | Exotic Pizza | $ 6.72
92 | High-end Pizza | $ 1.64
101 | Artisanal Soup | $ 7.86
102 | Wonderful Soup | $ 1.79
111 | Exotic Tacos | $ 7.23
112 | Fantastic Tacos | $ 5.37
113 | High-end Tacos | $ 7.71
121 | Artisanal Tikka Masala | $ 8.15
122 | Fantastic Tikka Masala | $ 1.63
131 | Artisanal Waffles | $ 4.79
132 | Glorious Waffles | $ 9.89
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 4
Product ID: 131
Sorry, product ID 131 is already in use.
Product ID: 133
Product description: Just ok Waffles
Product price: -1.00
Please enter a positive float value.
Product price: 3.50
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 2
Which product ID? 133
133 | Just ok Waffles | $ 3.50
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 3
All products currently in the inventory:
2 | Fanciful Apple | $ 6.63
3 | Fantastic Apple | $ 1.61
11 | Artisanal Bagels | $ 7.66
12 | Exotic Bagels | $ 3.63
13 | Fanciful Bagels | $ 5.00
14 | Fantastic Bagels | $ 2.99
15 | Wonderful Bagels | $ 1.18
21 | Artisanal Cheese | $ 3.17
22 | Fantastic Cheese | $ 1.19
23 | Glorious Cheese | $ 7.64
24 | Wonderful Cheese | $ 8.86
31 | Artisanal French Fries | $ 5.39
32 | Fanciful French Fries | $ 4.06
41 | Artisanal Guacamole | $ 2.61
42 | Fanciful Guacamole | $ 5.49
43 | Glorious Guacamole | $ 2.33
44 | Wonderful Guacamole | $ 8.31
51 | Exotic Hummus | $ 9.11
52 | Fanciful Hummus | $ 4.41
53 | Fantastic Hummus | $ 8.77
54 | Glorious Hummus | $ 9.47
55 | Wonderful Hummus | $ 4.75
61 | Exotic Ice Cream | $ 8.00
62 | Fantastic Ice Cream | $ 6.08
63 | Glorious Ice Cream | $ 4.55
71 | Glorious Ketchup | $ 8.02
72 | High-end Ketchup | $ 4.51
81 | Artisanal Pasta | $ 1.60
82 | Fanciful Pasta | $ 2.18
91 | Exotic Pizza | $ 6.72
92 | High-end Pizza | $ 1.64
101 | Artisanal Soup | $ 7.86
102 | Wonderful Soup | $ 1.79
111 | Exotic Tacos | $ 7.23
112 | Fantastic Tacos | $ 5.37
113 | High-end Tacos | $ 7.71
121 | Artisanal Tikka Masala | $ 8.15
122 | Fantastic Tikka Masala | $ 1.63
131 | Artisanal Waffles | $ 4.79
132 | Glorious Waffles | $ 9.89
133 | Just ok Waffles | $ 3.50
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 2
Which product ID? 20
No matching product found.
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 2
Which product ID? 21
21 | Artisanal Cheese | $ 3.17
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 5
How many products? 3
Product #1 ID? 1000
No matching product found.
Product #1 ID? 11
Quantity? 10
Product #2 ID? 133
Quantity? 2
Product #3 ID? 133
Quantity? 20
Final invoice:
11 | Artisanal Bagels | $ 7.66 x10
133 | Just ok Waffles | $ 3.50 x2
133 | Just ok Waffles | $ 3.50 x20
Total: 153.60
--CS 21 Inventory Management System--
1) Load product inventory from file.
2) Display individual product details.
3) Display all product details.
4) Add product to inventory.
5) Build invoice.
0) Quit.
What would you like to do? 0
Bye!