---
id: 68540aa7dfd449ad074c285c
title: Step 51
challengeType: 20
dashedName: step-51
---

# --description--

Now you'll demonstrate the inbox functionality. Ramy will check his inbox, read the first email, delete the first email, and then check his inbox again to see the changes.

In your `main` function, after sending the emails, add code to:

- Have Ramy check his inbox using the `check_inbox` method.
- Have Ramy read the first email.
- Have Ramy delete the first email.
- Have Ramy check his inbox again.

With this, you have completed the email simulator!

# --hints--

You should call `ramy.check_inbox()` to show Ramy's emails.

```js
({
    test: () => 
    {
        assert(runPython(`_Node(_code).find_function("main").find_body().has_stmt("ramy.check_inbox()")`))
    }
})
```

You should call `ramy.read_email(1)` to read the first email.

```js
({
    test: () => 
    {
        assert(runPython(`_Node(_code).find_function("main").find_body().has_stmt("ramy.read_email(1)")`))
    }
})

```

You should call `ramy.delete_email(1)` to delete the first email.

```js
({
    test: () => 
    {
        assert(runPython(`_Node(_code).find_function("main").find_body().has_stmt("ramy.delete_email(1)")`))
    }
})

```

You should call `ramy.check_inbox()` again to show the updated inbox.

```js
({
    test: () => 
    {
        assert(runPython(`_Node(_code).find_function("main").find_body().is_ordered("ramy.delete_email(1)", "ramy.check_inbox()")`))
    }
})

```

# --seed--

## --seed-contents--

```py
import datetime

class Email:
    def __init__(self, sender, receiver, subject, body):
        self.sender = sender
        self.receiver = receiver
        self.subject = subject
        self.body = body
        self.timestamp = datetime.datetime.now()
        self.read = False

    def mark_as_read(self):
        self.read = True

    def display_full_email(self):
        self.mark_as_read()
        print('\n--- Email ---')
        print(f'From: {self.sender.name}')
        print(f'To: {self.receiver.name}')
        print(f'Subject: {self.subject}')
        print(f"Received: {self.timestamp.strftime('%Y-%m-%d %H:%M')}")
        print(f'Body: {self.body}')
        print('------------\n')

    def __str__(self):
        status = 'Read' if self.read else 'Unread'
        return f"[{status}] From: {self.sender.name} | Subject: {self.subject} | Time: {self.timestamp.strftime('%Y-%m-%d %H:%M')}"

class User:
    def __init__(self, name):
        self.name = name
        self.inbox = Inbox()

    def send_email(self, receiver, subject, body):
        email = Email(sender=self, receiver=receiver, subject=subject, body=body)
        receiver.inbox.receive_email(email)
        print(f'Email sent from {self.name} to {receiver.name}!\n')

    def check_inbox(self):
        print(f"\n{self.name}'s Inbox:")
        self.inbox.list_emails()

    def read_email(self, index):
        self.inbox.read_email(index)

    def delete_email(self, index):
        self.inbox.delete_email(index)

class Inbox:
    def __init__(self):
        self.emails = []

    def receive_email(self, email):
        self.emails.append(email)

    def list_emails(self):
        if not self.emails:
            print('Your inbox is empty.\n')
            return
        print('\nYour Emails:')
        for i, email in enumerate(self.emails, start=1):
            print(f'{i}. {email}')

    def read_email(self, index):
        if not self.emails:
            print('Inbox is empty.\n')
            return
        actual_index = index - 1
        if actual_index < 0 or actual_index >= len(self.emails):
            print('Invalid email number.\n')
            return
        self.emails[actual_index].display_full_email()

    def delete_email(self, index):
        if not self.emails:
            print('Inbox is empty.\n')
            return
        actual_index = index - 1
        if actual_index < 0 or actual_index >= len(self.emails):
            print('Invalid email number.\n')
            return
        del self.emails[actual_index]
        print('Email deleted.\n')

def main():
    tory = User('Tory')
    ramy = User('Ramy')        
    
    tory.send_email(ramy, 'Hello', 'Hi Ramy, just saying hello!')
    ramy.send_email(tory, 'Re: Hello', 'Hi Tory, hope you are fine.')
--fcc-editable-region--    
    
--fcc-editable-region--
if __name__ == '__main__':
    main()
```

# --solutions--

```py
import datetime

class Email:
    def __init__(self, sender, receiver, subject, body):
        self.sender = sender
        self.receiver = receiver
        self.subject = subject
        self.body = body
        self.timestamp = datetime.datetime.now()
        self.read = False

    def mark_as_read(self):
        self.read = True

    def display_full_email(self):
        self.mark_as_read()
        print('\n--- Email ---')
        print(f'From: {self.sender.name}')
        print(f'To: {self.receiver.name}')
        print(f'Subject: {self.subject}')
        print(f"Received: {self.timestamp.strftime('%Y-%m-%d %H:%M')}")
        print(f'Body: {self.body}')
        print('------------\n')

    def __str__(self):
        status = 'Read' if self.read else 'Unread'
        return f"[{status}] From: {self.sender.name} | Subject: {self.subject} | Time: {self.timestamp.strftime('%Y-%m-%d %H:%M')}"

class User:
    def __init__(self, name):
        self.name = name
        self.inbox = Inbox()

    def send_email(self, receiver, subject, body):
        email = Email(sender=self, receiver=receiver, subject=subject, body=body)
        receiver.inbox.receive_email(email)
        print(f'Email sent from {self.name} to {receiver.name}!\n')

    def check_inbox(self):
        print(f"\n{self.name}'s Inbox:")
        self.inbox.list_emails()

    def read_email(self, index):
        self.inbox.read_email(index)

    def delete_email(self, index):
        self.inbox.delete_email(index)

class Inbox:
    def __init__(self):
        self.emails = []

    def receive_email(self, email):
        self.emails.append(email)

    def list_emails(self):
        if not self.emails:
            print('Your inbox is empty.\n')
            return
        print('\nYour Emails:')
        for i, email in enumerate(self.emails, start=1):
            print(f'{i}. {email}')

    def read_email(self, index):
        if not self.emails:
            print('Inbox is empty.\n')
            return
        actual_index = index - 1
        if actual_index < 0 or actual_index >= len(self.emails):
            print('Invalid email number.\n')
            return
        self.emails[actual_index].display_full_email()

    def delete_email(self, index):
        if not self.emails:
            print('Inbox is empty.\n')
            return
        actual_index = index - 1
        if actual_index < 0 or actual_index >= len(self.emails):
            print('Invalid email number.\n')
            return
        del self.emails[actual_index]
        print('Email deleted.\n')

def main():
    # Create users
    tory = User('Tory')
    ramy = User('Ramy')

    # Send emails
    tory.send_email(ramy, 'Hello', 'Hi Ramy, just saying hello!')
    ramy.send_email(tory, 'Re: Hello', 'Hi Tory, hope you are fine.')

    # Ramy checks inbox
    ramy.check_inbox()

    # Ramy reads first email (now uses 1-based indexing)
    ramy.read_email(1)

    # Ramy deletes first email (now uses 1-based indexing)
    ramy.delete_email(1)

    # Ramy checks inbox again
    ramy.check_inbox()


if __name__ == '__main__':
    main()
```
