Sequential programming example

Sequential.py

from User import User
from EmailService import EmailService

#
# main function
#
def main():

    #
    # Fetch the current user
    #
    new_user = User()
    new_user.load_from_session()

    #
    # Welcome email
    #
    if new_user.country == "fr":
        subject = "Bonjour et bienvenue sur notre site"
        content = "Bonjour et Bienvenue sur notre tout nouveau site. Contactez l'équipe de support si vous avez des..."
        EmailService.send(new_user.email, subject, content)
    elif new_user.country == "us" or new_user.country == "ca":
        subject = "Welcome to our site"
        content = "Hello and Welcome to our brand new site. Contact support team if you have any questions."
        EmailService.send(new_user.email, subject, content)

    #
    # Age check reminder
    #
    if new_user.age < 18:
        subject = "Important reminder"
        content = "Important: Please note that user under the age of 18 must provide a signed waiver from a parent ..."
        EmailService.send(new_user.email, subject, content)

    #
    # Payment verification reminder
    #
    if new_user.payment_status == "Unverified":
        subject = "Reminder about your payment status"
        content = "Please don't forget to update your payment information on our site"
        EmailService.send(new_user.email, subject, content)

#
# run main
#
if __name__ == "__main__":
    main()