explicitly declare pyzmq to avoid using python socket implementation
explicitly declare pyzmq to avoid using python socket implementation

santiavenda2/locust,locustio/locust,locustio/locust,fordhurley/locust,locustio/locust,bugsduggan/locust,TZer0/locust,pan1cz/locust,heyman/locust,mbeacom/locust,TZer0/locust,santiavenda2/locust,mbeacom/locust,santiavenda2/locust,pan1cz/locust,bugsduggan/locust,locustio/locust,bugsduggan/locust,fordhurley/locust,cgoldberg/locust,fordhurley/locust,cgoldberg/locust,pan1cz/locust,TZer0/locust,cgoldberg/locust,mbeacom/locust,mbeacom/locust