M$6$Lab Instructions

Introduction:

Assignment evaluate student understanding of concepts learned in this module in addition to concepts learned in previous modules.

Instructions:

In this assignment, we will be building on M$4$Pro, remember M$4$Pro was a store inventor

The program should continue to work the same only in this assignment $,$ we also want to write the information into files.

def category$($inventory$)$:

$""$

Parameters

$----------$

inventory : nested dictionary for store inventory

function searches for category entered and displays items under category found

$"""$

category $=$ input$("$Enter category$($first letter of each word MUST be capitalized$)$: $")$

if category in inventory: # found

for cat, v in inventory.items$()$:

if cat $==$ category:

print$($f$\text{'}$

$\{"$Item$"$:$<25\}\{"$Quantity$"$:$<15\}\{"$Unit Price"$\}\text{'})$

for sub $,$ content in v$.$items$()$:

print$($f$\text{'}\{$sub:$<25\}\{$content$["$Quantity$"]$:$<15\}$$$\{$content$["$Unit Price"$]\}\text{'})$

else:

# not found

print$($f$\text{'}$

The $\{$category$\}$ entered was NOT found!$\text{'})$

def get$\_$item$($inventory$)$:

$"""$

Parameters

$----------$

inventory : nested dictionary for store inventory

function searches for item entered and displays item information

$"""$

item $=$ input$("$Enter Item$($first letter MUST be capitalized$)$: $")$

# search in nested dict

item$\_$info $=\text{'}\text{'}$ # placeholder for cat dictionary

for cat, v in inventory.items$()$:

if item in v: # get nested dict

for sub, content in v$.$items$()$:

if item $==$ sub:

item$\_$info $=$ content

if item$\_$info $==\text{'}\text{'}$: # item not found so no item category dictionary captured

print$($f$\text{'}$

The $\{$item$\}$ entered was NOT found!$\text{'})$

else:

print$($f$\text{'}$

$\{"$Item$"$:$<25\}\{"$Quantity$"$:$<15\}\{"$Unit Price"$\}\text{'})$

print$($f$\text{'}\{$item:$<25\}\{$item$\_$info$["$Quantity$"]$:$<15\}$$$\{$item$\_$info$["$Unit Price"$]\}\text{'})$

def update$($inventory$,$ item$)$:

$"""$

Parameters

$----------$

inventory : nested dictionary for store inventory

function updates quantity $,$ unit price or both

$"""$

for cat, v in inventory.items$()$:

if item in v: # if found

#ask what they want to update

update $=$ int$($input$("$What would you like to update?

$1)$Quantity

$2)$Price

$3)$Both

$"))$

if update $==1$: #quantity

qnt $=$ int$($input$("$Enter new Quantity: $"))$

for sub $,$ content in v$.$items$()$:

if sub $==$ item:

content$["$Quantity$"]=$qnt

print$("$

Quantity updated"$)$

elif update $==2$: # Price

price $=$ float$($input$("$Enter new Price $$"))$

for sub $,$ content in v$.$items$()$:

if sub $==$ item:

content$["$Unit Price"$]=$price

print$("$

Unit Price updated"$)$

elif update $==3$:

qnt $=$ int$($input$("$Enter new Quantity: $"))$

price $=$ float$($input$("$Enter new Price $$"))$

for sub $,$ content in v$.$items$()$:

if sub $==$ item:

content$["$Quantity$"]=$qnt

content$["$Unit Price"$]=$price

print$("$

Quantity and Unit Price have been updated"$)$

else:

print$("$

Invalid value entered!!"$)$

def main$()$:

while True:

print$("$

$---------------------------$ Menu $---------------------------")$

print$("1)$ Display Inventory Content"$)$

print$("2)$ Category Lookup"$)$

print$("3)$ Item Lookup"$)$

print$("4)$ Update Item Info"$)$

print$("5)$ Exit"$)$

print$("------------------------------------------------------------$

$")$

choice $=$ input$("$Enter your choice: $")$

if choice $==\text{'}1\text{'}$:

display$\_$inventory$($inventory$)$

elif choice $==\text{'}2\text{'}$:

category$\_$lookup$($inventory$)$

elif choice $==\text{'}3\text{'}$:

item$\_$lookup$($inventory$)$

elif choice $==\text{'}4\text{'}$:

update$\_$item$\_$info$($inventory$)$

elif choice $==\text{'}5\text{'}$:

break

else:

print$("$Invalid choice. Please try again."$)$

if $\_\_$name$\_\_=="\_\_$main$\_\_"$:

main$()$

How it should work:

if the user chooses $"1",$ the program is still to display the inventory content but it should ALSO write the information into a CSV file. The file should be called "inventory".

if the user chooses $"2",$ the program is to ask for the category $.$ After the category is entered, the program is to do the following

$-$ Remember the first letter of each word of the category name is capitalized, for instance "Desk Supplies" $.$ Therefore when obtaining the category name from the user, make sure it's converted to the same case.

$-$ if the category is not found $,$ notify the user $($this is done already in attached program$)$

$-$ If the category is found $,$ in addition to what the program displays ADD Total price for each item $($quantity $*$ unit price$).$ ALSO write the info into a CSV file. A few important points to $-$ If the c