new_contents: from django.core.management.base import BaseCommand
  from django.core.mail import EmailMessage, get_connection
  from django.template import Template, Context
  
  from mezzanine.pages.models import Page
  
  import csv
  
  
  class Command(BaseCommand):
      args = "<csv_file_path> [<from>]"
      help = "Send mails to contacts on a CSV file"
  
      def handle(self, *args, **options):
          csv_file = args[0]
          dr = csv.DictReader(open(csv_file, "r"))
          conn = get_connection()
          if len(args) > 1:
              from_email = args[1]
          else:
              contact_page = Page.objects.get(slug="contact-us")
              from_email = contact_page.form.email_from
          subject_tmpl = Template("")
          body_tmpl = Template("")
          for row in dr:
              if row["message"]:
                  body_tmpl = Template(row["message"])
              if row["subject"]:
                  subject_tmpl = Template(row["subject"])
              kwargs = {
                  "subject": subject_tmpl.render(Context(row)),
                  "body": body_tmpl.render(Context(row)),
                  "from_email": from_email,
                  "to": [row["to"]],
                  "connection": conn
              }
              msg = EmailMessage(**kwargs)
              msg.send()
  
subject: Send mails to contacts referenced in a csv file.