#function to send an email

def send_email(subject, body, screenshot_path=None):

try:

     msg = MIMEMultipart()

        msg["From"] = EMAIL_ADDRESS

        msg["To"] = TO_EMAIL

        msg["Subject"] = subject

        msg.attach(MIMEText(f"{body}\n\nSystem Details:\n{SYSTEM_INFO}", "plain"))

     if screenshot_path:

            attachment = open(screenshot_path, "rb")

         part = MIMEBase("application", "octet-stream")

            part.set_payload(attachment.read())

            encoders.encode_base64(part)

            part.add_header("Content-Disposition", f"attachment; filename={os.path.basename(screenshot_path)}")

            msg.attach(part)

            attachment.close()

     with smtplib.SMTP("smtp.gmail.com", 587) as server:

            server.starttls()

            server.login(EMAIL_ADDRESS, EMAIL_PASSWORD)

            server.send_message(msg)

        print("Alert email sent.")

except Exception as e:

        print(f"Failed to send email: {e}")

Explanation:

This function, send_email, sends an email with an optional screenshot attachment. Here's a breakdown of how it works:

Components :

1. Setup Email Parameters:

   • msg = MIMEMultipart(): Creates a multi-part email message, allowing for text and attachments.

   • msg["From"], msg["To"], msg["Subject"]: Sets the sender's address, recipient's address, and email subject.

2. Body of the Email:

   • msg.attach(MIMEText(f"{body}\n\nSystem Details:\n{SYSTEM_INFO}", "plain")): Attaches the email's body text, including system details (SYSTEM_INFO), formatted as plain text.

3. Optional Screenshot Attachment:

   • If a screenshot_path is provided:

     • Opens the file in binary mode ("rb") and creates a MIMEBase object for the file.

     • part.set_payload(attachment.read()): Reads and sets the screenshot's content as the payload.

     • encoders.encode_base64(part): Encodes the payload into Base64 for email-safe transfer.

     • Adds a content-disposition header to specify the filename (os.path.basename(screenshot_path)).

     • Attaches the screenshot to the email using msg.attach(part).

4. Send the Email:

   • Establishes a connection with the Gmail SMTP server (smtp.gmail.com) over port 587.

   • Starts a secure TLS session (server.starttls()).

   • Logs into the Gmail account using EMAIL_ADDRESS and EMAIL_PASSWORD.

   • Sends the email using server.send_message(msg).

5. Error Handling:

   • Catches exceptions during the process and prints an error message.

Notes:

• Ensure the Gmail account allows less secure apps or uses an app password for SMTP login.

• Handle sensitive information like EMAIL_PASSWORD securely (e.g., use environment variables).

• Verify that screenshot_path exists before attaching to avoid errors.