work around: http://bugs.python.org/issue8098
work around: http://bugs.python.org/issue8098

skob/alerta,mrkeng/alerta,guardian/alerta,mrkeng/alerta,mrkeng/alerta,guardian/alerta,mrkeng/alerta,0312birdzhang/alerta,guardian/alerta,guardian/alerta,0312birdzhang/alerta,skob/alerta,skob/alerta,skob/alerta,0312birdzhang/alerta