Python code: Help make code more modular with function getAreaRecs$()$ which totals areas of windows

and doors, and writing a program that reads the $3$ test files created and prints them out line by line.

So I need help replacing the loops to get total area of the windows and total area of the doors with the getAreaRecs function. Also help to adding to my program to write all input and output to a file.

My code:

import math

def calculate$\_$paint$\_$needed$($length$,$ width, height, doors, windows$)$:

total$\_$wall$\_$area $=2*($length $+$ width$)*$ height

total$\_$door$\_$area $=$ sum$($door$["$length$"]*$ door$["$width$"]$ for door in doors$)$

total$\_$window$\_$area $=$ sum$($window$["$length$"]*$ window$["$width$"]$ for window in windows$)$

total$\_$wall$\_$area $-=$ total$\_$door$\_$area $+$ total$\_$window$\_$area

gallons$\_$needed $=$ total$\_$wall$\_$area $/100\mathrm{.}0$

return gallons$\_$needed

def get$\_$valid$\_$input$($prompt$,$ validation$\_$func$)$:

while True:

try:

value $=$ input$($prompt$)$

value $=$ float$($value$)$

if validation$\_$func$($value$)$:

return value

else:

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

except ValueError:

print$("$Invalid input. Please enter a valid number."$)$

def validate$\_$positive$($value$)$:

return value $>0$

def main$()$:

length $=$ get$\_$valid$\_$input$("$Enter the length of the room in feet: $",$ validate$\_$positive$)$

width $=$ get$\_$valid$\_$input$("$Enter the width of the room in feet: $",$ validate$\_$positive$)$

height $=$ get$\_$valid$\_$input$("$Enter the height of the room in feet: $",$ validate$\_$positive$)$

total$\_$wall$\_$area $=2*($length $+$ width$)*$ height

print$("$Total wall area before subtracting doors and windows:", total$\_$wall$\_$area$)$

print$("$Excellent$,$ let's get your windows and doors in now."$)$

num$\_$doors $=$ int$($get$\_$valid$\_$input$("$Enter the number of doors $($must be greater than $0)$: $",$ validate$\_$positive$))$

doors $=[\{"$length$"$: get$\_$valid$\_$input$($f$"$Enter the length of door $\{$i$+1\}$ in feet: $",$ validate$\_$positive$),$

"width": get$\_$valid$\_$input$($f$"$Enter the width of door $\{$i$+1\}$ in feet: $",$ validate$\_$positive$)\}$

for i in range$($num$\_$doors$)]$

num$\_$windows $=$ int$($get$\_$valid$\_$input$("$Enter the number of windows: $",$ validate$\_$positive$))$

windows $=[\{"$length$"$: get$\_$valid$\_$input$($f$"$Enter the length of window $\{$i$+1\}$ in feet: $",$ validate$\_$positive$),$

"width": get$\_$valid$\_$input$($f$"$Enter the width of window $\{$i$+1\}$ in feet: $",$ validate$\_$positive$)\}$

for i in range$($num$\_$windows$)]$

gallons$\_$needed $=$ calculate$\_$paint$\_$needed$($length$,$ width, height, doors, windows$)$

print$($f$"$You will need to buy $\{$math$.$ceil$($gallons$\_$needed$)\}$ gallons of paint."$)$

print$("$You will need exactly", gallons$\_$needed, "gallons of paint for the walls after subtracting the doors and windows."$)$

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

main$()$