choose executor by python version
choose executor by python version

block one slave when reaching MAX_FAILURES

junmoa/dpark,yhj630520/dpark,veritynoob/dpark,mageia/dpark,douban/dpark,Mignet/dpark,ee08b397/dpark,douban/dpark,windreamer/dpark,douban/dpark,dogeyes/dpark,Mignet/dpark,veritynoob/dpark,daishaowei/dpark,douban/dpark,windreamer/dpark,zzl0/dpark,yhj630520/dpark,yhj630520/dpark,daishaowei/dpark,veritynoob/dpark,dogeyes/dpark,304471720/dpark,304471720/dpark,oceanjack/dpark,yanheven/dpark,windreamer/dpark,fe11x/dpark,windreamer/dpark,oceanjack/dpark,fe11x/dpark,dogeyes/dpark,smarthomekit/dpark,yanheven/dpark,smarthomekit/dpark,mageia/dpark,quxiaolong1504/dpark,smarthomekit/dpark,304471720/dpark,zzl0/dpark,quxiaolong1504/dpark,junmoa/dpark,douban/dpark