Sending Emails with Python

# Python email sending (actual code):
# import smtplib
# from email.mime.text import MIMEText
# from email.mime.multipart import MIMEMultipart
# 
# msg = MIMEMultipart()
# msg["Subject"] = "Test Email"
# msg["From"] = "sender@gmail.com"
# msg["To"] = "recipient@email.com"
# msg.attach(MIMEText("Hello from Python!", "plain"))
# 
# with smtplib.SMTP("smtp.gmail.com", 587) as server:
#     server.starttls()
#     server.login("sender@gmail.com", "app_password")
#     server.send_message(msg)

# Demo: Email builder
class EmailBuilder:
    def __init__(self):
        self.subject = ""
        self.sender = ""
        self.recipients = []
        self.body = ""
        self.attachments = []
    
    def set_subject(self, subject):
        self.subject = subject
        return self
    
    def set_from(self, sender):
        self.sender = sender
        return self
    
    def add_to(self, recipient):
        self.recipients.append(recipient)
        return self
    
    def set_body(self, body):
        self.body = body
        return self
    
    def preview(self):
        print("=== Email Preview ===")
        print(f"  From: {self.sender}")
        print(f"  To: {', '.join(self.recipients)}")
        print(f"  Subject: {self.subject}")
        print(f"  Body: {self.body[:100]}...")
        print(f"  Attachments: {len(self.attachments)}")

# Usage (builder pattern)
email = (EmailBuilder()
    .set_from("admin@company.com")
    .add_to("alice@email.com")
    .add_to("bob@email.com")
    .set_subject("Weekly Report — Python Course Progress")
    .set_body("Hi team, here is the weekly course progress report. "
              "All modules are on track. Students completed 85% of assignments."))

email.preview()

# Automated report email
print("\n=== Automated Report ===")
stats = {"enrolled": 150, "completed": 85, "avg_score": 78.5}
report_body = f"""Course Statistics:
  Enrolled: {stats['enrolled']}
  Completed: {stats['completed']}
  Completion Rate: {stats['completed']/stats['enrolled']*100:.1f}%
  Average Score: {stats['avg_score']}"""
print(report_body)