def log_successful_login(sender, request, user, **kwargs):  # pylint: disable=unused-argument
    """Handler to log when logins have occurred successfully."""
    if settings.FEATURES['SQUELCH_PII_IN_LOGS']:
        AUDIT_LOG.info(u"Login success - user.id: {0}".format(user.id))
    else:
        AUDIT_LOG.info(u"Login success - {0} ({1})".format(user.username, user.email))