import csv

from operator import itemgetter

# Lists of valid personalities and games

personalities $=["$shy$",$ "courageous", "aggressive", "calm", "needy", "curious", "independent"$]$

games $=["$swim$",$ "platforms", "handfeeding", "puzzles", "fake hunting", "swings", "hiding"$]$

# Function to read the species file and create a species dictionary

def read$\_$species$\_$file$($filename$)$:

try:

species$\_$dict $=\{\}$

f $=$ open$($filename$,\text{'}$r$\text{'})$

reader $=$ csv$.$reader$($f$)$

for line$\_$number, row in enumerate$($reader$,$ start$=1)$:

species$\_$dict$[$line$\_$number$]=$ row$[0]$ # species ID is the line number

f$.$close$()$ # Make sure to close the file after reading

return species$\_$dict

except FileNotFoundError:

print$($f$"$Error$.$ File $\text{'}\{$filename$\}\text{'}$ does not exist"$)$

return None

# Function to read the expenses file and create an expense dictionary

def read$\_$expenses$\_$file$($filename$)$:

try:

expenses$\_$dict $=\{\}$

f $=$ open$($filename$,\text{'}$r$\text{'})$

reader $=$ csv$.$reader$($f$)$

for row in reader:

item, expense, rate $=$ row$[0],$ float$($row$[1]),$ row$[2]$

if rate $==$ "peryear":

expenses$\_$dict$[$item$]=$ expense $/12$

elif rate $==$ "perday":

expenses$\_$dict$[$item$]=$ expense $*30$

else:

expenses$\_$dict$[$item$]=$ expense # per month

f$.$close$()$ # Make sure to close the file after reading

return expenses$\_$dict

except FileNotFoundError:

print$($f$"$Error$.$ File $\text{'}\{$filename$\}\text{'}$ does not exist"$)$

return None

# Function to read the zoo file and create a list of animal data

def calculate$\_$sick$\_$percentage$($zoos$)$:

results $=\{\}$

for zoo in sorted$($zoos$.$keys$())$:

total$\_$animals $=$ sum$($len$($animals$)$ for animals in zoos$[$zoo$].$values$())$

sick$\_$animals $=$ sum$(1$ for species in zoos$[$zoo$].$values$()$ for animal in species if animal$[\text{'}$health$\text{'}]==$ 'sick'$)$

percentage$\_$sick $=($sick$\_$animals $/$ total$\_$animals$)*100$ if total$\_$animals $>0$ else $0$

results$[$zoo$]=\{$

'percentage': int$($percentage$\_$sick$),$

'sick$\_$species': find$\_$sickest$\_$species$($zoos$[$zoo$])$

$\}$

print$\_$results$($results$)$

def find$\_$sickest$\_$species$($species$\_$data$)$:

sick$\_$count $=\{\}$

for species, animals in species$\_$data.items$()$:

sick$\_$count$[$species$]=$ sum$(1$ for animal in animals if animal$[\text{'}$health$\text{'}]==$ 'sick'$)$

max$\_$sick $=$ max$($sick$\_$count.values$())$

return sorted$([$species for species, count in sick$\_$count.items$()$ if count $==$ max$\_$sick$])$

def print$\_$results$($results$)$:

for zoo, data in sorted$($results$.$items$())$:

print$($

f$"\{$data$[\text{'}$percentage$\text{'}]\}\%$ of $\{$zoo$.$title$()\}$ Zoo animals are sick. The sickest being $\{\text{'},\text{'}.$join$($data$[\text{'}$sick$\_$species'$])\}.")$

healthiest$\_$zoo $=$ determine$\_$healthiest$\_$zoo$($results$)$

print$($f$"\{$healthiest$\_$zoo$\}$ Zoo takes better care of its animals!!!"$)$

def determine$\_$healthiest$\_$zoo$($results$)$:

healthiest $=$ min$($results$.$items$(),$ key$=$lambda x: x$[1][\text{'}$percentage$\text{'}])$

return healthiest$[0].$title$()$

def calculate$\_$monthly$\_$expenses$($zoos$)$:

expenses $=\{\}$

for zoo in sorted$($zoos$.$keys$())$:

total$\_$expense $=$ sum$($animal$[\text{'}$monthly$\_$expense'$]$ for animal in zoos$[$zoo$][\text{'}$animals$\text{'}])$

expenses$[$zoo$]=$ total$\_$expense

print$\_$expense$\_$results$($expenses$)$

def print$\_$expense$\_$results$($expenses$)$:

for zoo, cost in sorted$($expenses$.$items$())$:

print$($f$"\{$zoo$.$title$()\}$ Zoo spends $$\{$cost:$,\mathrm{.}2$f$\}$ a month."$)$

most$\_$expensive $=$ determine$\_$most$\_$expensive$\_$zoo$($expenses$)$

print$($f$"\{$most$\_$expensive$\}$ Zoo is the most expensive zoo!!!"$)$

def determine$\_$most$\_$expensive$\_$zoo$($expenses$)$:

max$\_$cost $=$ max$($expenses$.$values$())$

most$\_$expensive$\_$zoos $=$ sorted$([$zoo for zoo, cost in expenses.items$()$ if cost $==$ max$\_$cost$])$

return $\text{'}$ and $\text{'}.$join$($most$\_$expensive$\_$zoos$)$

def get$\_$animal$\_$details$($zoos$)$:

while True:

zoo $=$ input$("$Enter a zoo: $")$

if zoo not in zoos:

print$("$Invalid zoo or does not exist."$)$

continue

species $=$ input$("$Enter an animal species: $")$

if species not in zoos$[$zoo$]$:

print$("$Invalid species or does not exist."$)$

continue

name $=$ input$("$Enter the animal's name: $")$

animal $=$ next$(($a for a in zoos$[$zoo$][$species$]$ if a$[\text{'}$name$\text{'}]==$ name$),$ None$)$

if not animal:

print$("$Invalid name or does not exist."$)$

continue

print$\_$animal$\_$details$($animal$)$

break

def print$\_$animal$\_$details$($animal$)$:

print$($

f$"\{$animal$[\text{'}$name$\text{'}]\}$

Species ID: $\{$animal$[\text{'}$species$\_$id$\text{'}]\}$

Age: $\{$animal$[\text{'}$age$\text{'}]\}$ years old

Sex: $\{$animal$[\text{'}$sex$\text{'}]\}$

Health: $\{$animal$[\text{'}$health$\text{'}]\}$

Years at Zoo: $\{$animal