import os

import pickle

import subprocess

class AlwaysNote:

def $\_\_$init$\_\_($self$)$:

self.notes $=[]$

self.filename $=$ "notes.pkl$"$

self.load$\_$notes$()$

def clear$\_$screen$($self$)$:

subprocess.call$(\text{'}$cls$\text{'}$ if os$.$name $==\text{'}$nt$\text{'}$ else 'clear', shell$=$True$)$

def display$\_$menu$($self$)$:

print$(".$: ALWAYSNOTE :$.")$

print$("--$ gold edition $--")$

print$("******************")$

self.display$\_$notes$\_$titles$()$

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

print$("$view $|$ view note"$)$

print$("$add $|$ add note"$)$

print$("$rm $|$ remove note"$)$

print$("$exit $|$ exit program"$)$

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

def display$\_$notes$\_$titles$($self$)$:

for note in self.notes:

print$($f$"-\{$note$[\text{'}$title$\text{'}]\}")$

def view$\_$note$($self$,$ title$)$:

self.clear$\_$screen$()$

for note in self.notes:

if note$[\text{'}$title$\text{'}]==$ title:

print$($f$"$

$\{$note$[\text{'}$title$\text{'}]\}")$

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

input$("$Press enter to continue..."$)$

print$($f$"$

Description: $\{$note$[\text{'}$description$\text{'}]\}$

$")$

input$("$Press Enter to continue..."$)$

break

else:

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

print$($f$"$

ERROR: Unknown note

$")$

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

input$("$Press Enter to continue..."$)$

def add$\_$note$($self$,$ title, description$)$:

self.notes.append$(\{\text{'}$title$\text{'}$: title, 'description': description$\})$

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

print$("$

INFO: Note added!

$")$

input$("$Press Enter to continue..."$)$

def remove$\_$note$($self$,$ title$)$:

for note in self.notes:

if note$[\text{'}$title$\text{'}]==$ title:

self.notes.remove$($note$)$

print$("$

INFO: Note deleted successfully

$")$

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

input$("$Press Enter to continue..."$)$

break

else:

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

print$("$

ERROR: Unknown note

$")$

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

input$("$Press Enter to continue..."$)$

def save$\_$notes$($self$)$:

with open$($self$.$filename, $\text{'}$wb$\text{'})$ as file:

pickle.dump$($self$.$notes, file$)$

def load$\_$notes$($self$)$:

if os$.$path.exists$($self$.$filename$)$:

with open$($self$.$filename, $\text{'}$rb$\text{'})$ as file:

self.notes $=$ pickle.load$($file$)$

def run$($self$)$:

while True:

self.clear$\_$screen$()$ # Move clear$\_$screen outside the loop

self.display$\_$menu$()$

choice $=$ input$("$menu $>").$lower$()$

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

if choice $==$ 'view':

title $=$ input$("$title $>")$

self.view$\_$note$($title$)$

elif choice $==$ 'add':

title $=$ input$("$title $>")$

description $=$ input$("$descr $>")$

self.add$\_$note$($title$,$ description$)$

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

title $=$ input$("$title $>")$

self.remove$\_$note$($title$)$

elif choice $==$ 'exit':

self.save$\_$notes$()$

print$("$Exiting program. Goodbye!"$)$

break

else:

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

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

always$\_$note$\_$app $=$ AlwaysNote$()$

always$\_$note$\_$app.run$(),$ the menu must print only once after each operation. Do not change anything else.