code: def send_comment_email(email, package_owner, package_name, commenter):
      
      link = '{CATALOG_URL}/package/{owner}/{pkg}/comments'.format(
          CATALOG_URL=CATALOG_URL, owner=package_owner, pkg=package_name)
      subject = "New comment on {package_owner}/{package_name}".format(
          package_owner=package_owner, package_name=package_name)
      html = render_template('comment_email.html', commenter=commenter, link=link)
      body = render_template('comment_email.txt', commenter=commenter, link=link)
      send_email(recipients=[email], sender=DEFAULT_SENDER, subject=subject,
                 html=html, body=body)
docs: Send email to owner of package regarding new comment