Add the following functionality when the user selects $$vm$$ to view all the tasks

assigned to them:

$$ Display all tasks in a manner that is easy to read. Make sure that each

task is displayed with a corresponding number that can be used to

identify the task.

$$ Allow the user to select either a specific task $($by entering a number$)$ or

input $-1$ to return to the main menu.

$$ If the user selects a specific task, they should be able to choose to either

mark the task as complete or edit the task.

$$ If the user chooses to mark a task as complete, the $$Yes$/$No$$

value that describes whether the task has been completed or not

should be changed to $$Yes$.$

$4$

if the user chooses to edit a task, the username of the person to

whom the task is assigned or the due date of the task can be

edited. The task can only be edited if it has not yet been

completed.

code $-----------$

# Notes:

# $1.$ Use the following username and password to access the admin rights

# username: admin

# password: password

# $2.$ Ensure you open the whole folder for this task in VS Code otherwise the

# program will look in your root directory for the text files.

#$=====$importing libraries$===========$

import os

from datetime import datetime, date

DATETIME$\_$STRING$\_$FORMAT $="\%$Y$-\%$m$-\%$d$"$

# Create tasks.txt if it doesn't exist

if not os$.$path.exists$("$tasks$.$txt$")$:

with open$("$tasks$.$txt$","$w$")$ as default$\_$file:

pass

with open$("$tasks$.$txt$",\text{'}$r$\text{'})$ as task$\_$file:

task$\_$data $=$ task$\_$file.read$().$split$("$

$")$

task$\_$data $=[$t for t in task$\_$data if t $!=""]$

task$\_$list $=[]$

for t$\_$str in task$\_$data:

curr$\_$t $=\{\}$

# Split by semicolon and manually add each component

task$\_$components $=$ t$\_$str$.$split$("$;$")$

curr$\_$t$[\text{'}$username$\text{'}]=$ task$\_$components$[0]$

curr$\_$t$[\text{'}$title$\text{'}]=$ task$\_$components$[1]$

curr$\_$t$[\text{'}$description$\text{'}]=$ task$\_$components$[2]$

curr$\_$t$[\text{'}$due$\_$date'$]=$ datetime.strptime$($task$\_$components$[3],$ DATETIME$\_$STRING$\_$FORMAT$)$

curr$\_$t$[\text{'}$assigned$\_$date'$]=$ datetime.strptime$($task$\_$components$[4],$ DATETIME$\_$STRING$\_$FORMAT$)$

curr$\_$t$[\text{'}$completed$\text{'}]=$ True if task$\_$components$[5]==$ "Yes" else False

task$\_$list.append$($curr$\_$t$)$

#$====$Login Section$====$

$\text{'}\text{'}\text{'}$This code reads usernames and password from the user.txt file to

allow a user to login$.$

$\text{'}\text{'}\text{'}$

# If no user.txt file, write one with a default account

if not os$.$path.exists$("$user$.$txt$")$:

with open$("$user$.$txt$","$w$")$ as default$\_$file:

default$\_$file.write$("$admin;password"$)$

# Read in user$\_$data

with open$("$user$.$txt$",\text{'}$r$\text{'})$ as user$\_$file:

user$\_$data $=$ user$\_$file.read$().$split$("$

$")$

# Convert to a dictionary

username$\_$password $=\{\}$

for user in user$\_$data:

username, password $=$ user.split$(\text{'}$;$\text{'})$

username$\_$password$[$username$]=$ password

logged$\_$in $=$ False

while not logged$\_$in:

print$("$LOGIN$")$

curr$\_$user $=$ input$("$Username: $")$

curr$\_$pass $=$ input$("$Password: $")$

if curr$\_$user not in username$\_$password.keys$()$:

print$("$User does not exist"$)$

continue

elif username$\_$password$[$curr$\_$user$]!=$ curr$\_$pass:

print$("$Wrong password"$)$

continue

else:

print$("$Login Successful!"$)$

logged$\_$in $=$ True

# user defining for menu

def reg$\_$user $()$:

new$\_$username $=$ input$("$Enter new Username: $").$strip$()$

if new$\_$username in username$\_$password:

print$("$That username already exists please enter another one!"$)$

else:

if new$\_$username not in username$\_$password:

while True:

new$\_$password $=$ input$("$Enter new Password: $").$strip$()$

confirm$\_$new$\_$password $=$ input$("$Re$-$enter new Password: $").$strip$()$

if new$\_$password $==$ confirm$\_$new$\_$password:

print$("$New user added"$)$

username$\_$password$[$new$\_$username$]=$ new$\_$password

with open$("$user$.$txt$","$w$")$ as out$\_$file:

user$\_$data $=[]$

for k in username$\_$password:

user$\_$data.append$($f$"\{$k$\}$;$\{$username$\_$password$[$k$]\}")$

out$\_$file.write$("$

$".$join$($user$\_$data$))$

return new$\_$username $+","+$ new$\_$password

else:

print$("$Passwords do no match"$)$

def add$\_$task $()$:

task$\_$username $=$ input$("$Name of person assigned to task: $")$

while task$\_$username not in username$\_$password.keys$()$:

print$("$User does not exist. Please enter a valid username"$)$

task$\_$username $=$ input$("$Enter a user who exists please."$)$

task$\_$title $=$ input$("$Title of Task: $")$

task$\_$description $=$ input$("$Description of Task: $")$

while True:

try:

task$\_$due$\_$date $=$ input$("$Due date of task $($YYYY$-$MM$-$DD$)$: $")$

due$\_$date$\_$time $=$ datetime.strptime$($task$\_$due$\_$date, DATETIME$\_$STRING$\_$FORMAT$)$

break

except ValueError:

print$("$Invalid datetime format. Please use the format specified"$)$

# Then get the current date.

curr$\_$date $=$ date.today$()$

$\text{'}\text{'}\text{'}$ Add the data to the file task.txt and

Include $\text{'}$No$\text{'}$ to indicate if the task is complete.$\text{'}\text{'}\text{'}$

new$\_$task $=\{$

"usern