Make connection_test.py work in both 2.6 and 2.7.
Make connection_test.py work in both 2.6 and 2.7.

mapbased/vitess,ptomasroos/vitess,pivanof/vitess,atyenoria/vitess,HubSpot/vitess,sougou/vitess,xgwubin/vitess,alainjobart/vitess,kuipertan/vitess,enisoc/vitess,pivanof/vitess,fengshao0907/vitess,vitessio/vitess,kmiku7/vitess-annotated,pivanof/vitess,davygeek/vitess,yangzhongj/vitess,AndyDiamondstein/vitess,rnavarro/vitess,tinyspeck/vitess,HeisenbergUncertain/vitess,applift/vitess,yangzhongj/vitess,erzel/vitess,ptomasroos/vitess,mahak/vitess,mapbased/vitess,michael-berlin/vitess,dumbunny/vitess,mapbased/vitess,atyenoria/vitess,AndyDiamondstein/vitess,kmiku7/vitess-annotated,cgvarela/vitess,kuipertan/vitess,alainjobart/vitess,HubSpot/vitess,HeisenbergUncertain/vitess,xgwubin/vitess,tirsen/vitess,vitessio/vitess,netroby/vitess,vitessio/vitess,ptomasroos/vitess,tirsen/vitess,kuipertan/vitess,aaijazi/vitess,cgvarela/vitess,applift/vitess,tirsen/vitess,dcadevil/vitess,nurblieh/vitess,mahak/vitess,atyenoria/vitess,guokeno0/vitess,yaoshengzhe/vitess,tjyang/vitess,cgvarela/vitess,rnavarro/vitess,nurblieh/vitess,nurblieh/vitess,applift/vitess,davygeek/vitess,tirsen/vitess,davygeek/vitess,tjyang/vitess,mapbased/vitess,mahak/vitess,nurblieh/vitess,tinyspeck/vitess,cloudbearings/vitess,SDHM/vitess,tirsen/vitess,nurblieh/vitess,mattharden/vitess,aaijazi/vitess,aaijazi/vitess,sougou/vitess,HubSpot/vitess,guokeno0/vitess,aaijazi/vitess,yaoshengzhe/vitess,netroby/vitess,guokeno0/vitess,dumbunny/vitess,atyenoria/vitess,kuipertan/vitess,vitessio/vitess,pivanof/vitess,erzel/vitess,xgwubin/vitess,CERN-Stage-3/vitess,atyenoria/vitess,fengshao0907/vitess,apmichaud/vitess-apm,cloudbearings/vitess,kmiku7/vitess-annotated,vitessio/vitess,mattharden/vitess,dumbunny/vitess,HeisenbergUncertain/vitess,xgwubin/vitess,mattharden/vitess,ngaut/vitess,dumbunny/vitess,kmiku7/vitess-annotated,cgvarela/vitess,xgwubin/vitess,pivanof/vitess,erzel/vitess,applift/vitess,yangzhongj/vitess,CERN-Stage-3/vitess,mlc0202/vitess,sougou/vitess,anusornc/vitess,skyportsystems/vitess,yaoshengzhe/vitess,erzel/vitess,enisoc/vitess,mlc0202/vitess,kuipertan/vitess,ptomasroos/vitess,michael-berlin/vitess,cloudbearings/vitess,alainjobart/vitess,sougou/vitess,michael-berlin/vitess,HubSpot/vitess,michael-berlin/vitess,tjyang/vitess,mlc0202/vitess,tjyang/vitess,dumbunny/vitess,mahak/vitess,tjyang/vitess,kuipertan/vitess,yangzhongj/vitess,mahak/vitess,dumbunny/vitess,ptomasroos/vitess,mapbased/vitess,rnavarro/vitess,alainjobart/vitess,michael-berlin/vitess,SDHM/vitess,mahak/vitess,fengshao0907/vitess,SDHM/vitess,applift/vitess,cloudbearings/vitess,enisoc/vitess,sougou/vitess,ngaut/vitess,nurblieh/vitess,alainjobart/vitess,guokeno0/vitess,rnavarro/vitess,tinyspeck/vitess,CERN-Stage-3/vitess,tinyspeck/vitess,cgvarela/vitess,fengshao0907/vitess,tirsen/vitess,SDHM/vitess,AndyDiamondstein/vitess,skyportsystems/vitess,dcadevil/vitess,alainjobart/vitess,AndyDiamondstein/vitess,kmiku7/vitess-annotated,nurblieh/vitess,netroby/vitess,applift/vitess,alainjobart/vitess,ptomasroos/vitess,tirsen/vitess,mlc0202/vitess,tinyspeck/vitess,fengshao0907/vitess,dumbunny/vitess,mapbased/vitess,apmichaud/vitess-apm,atyenoria/vitess,apmichaud/vitess-apm,cloudbearings/vitess,SDHM/vitess,vitessio/vitess,guokeno0/vitess,cloudbearings/vitess,sougou/vitess,guokeno0/vitess,cloudbearings/vitess,yangzhongj/vitess,anusornc/vitess,tirsen/vitess,rnavarro/vitess,cgvarela/vitess,enisoc/vitess,yaoshengzhe/vitess,xgwubin/vitess,yangzhongj/vitess,mlc0202/vitess,yaoshengzhe/vitess,atyenoria/vitess,erzel/vitess,mattharden/vitess,dcadevil/vitess,skyportsystems/vitess,ngaut/vitess,mapbased/vitess,aaijazi/vitess,skyportsystems/vitess,mapbased/vitess,kmiku7/vitess-annotated,guokeno0/vitess,kmiku7/vitess-annotated,anusornc/vitess,fengshao0907/vitess,rnavarro/vitess,SDHM/vitess,netroby/vitess,vitessio/vitess,sougou/vitess,aaijazi/vitess,enisoc/vitess,ngaut/vitess,yaoshengzhe/vitess,michael-berlin/vitess,dcadevil/vitess,mlc0202/vitess,atyenoria/vitess,anusornc/vitess,kmiku7/vitess-annotated,davygeek/vitess,cgvarela/vitess,xgwubin/vitess,mattharden/vitess,HubSpot/vitess,erzel/vitess,rnavarro/vitess,mlc0202/vitess,cgvarela/vitess,dumbunny/vitess,aaijazi/vitess,erzel/vitess,HubSpot/vitess,fengshao0907/vitess,michael-berlin/vitess,AndyDiamondstein/vitess,xgwubin/vitess,AndyDiamondstein/vitess,rnavarro/vitess,davygeek/vitess,anusornc/vitess,HubSpot/vitess,yaoshengzhe/vitess,mattharden/vitess,dcadevil/vitess,AndyDiamondstein/vitess,ptomasroos/vitess,cloudbearings/vitess,cloudbearings/vitess,applift/vitess,SDHM/vitess,aaijazi/vitess,pivanof/vitess,ngaut/vitess,dcadevil/vitess,mapbased/vitess,cgvarela/vitess,ptomasroos/vitess,ptomasroos/vitess,tinyspeck/vitess,skyportsystems/vitess,anusornc/vitess,applift/vitess,CERN-Stage-3/vitess,vitessio/vitess,nurblieh/vitess,davygeek/vitess,netroby/vitess,guokeno0/vitess,kuipertan/vitess,applift/vitess,kuipertan/vitess,kuipertan/vitess,yaoshengzhe/vitess,apmichaud/vitess-apm,pivanof/vitess,mahak/vitess,dumbunny/vitess,skyportsystems/vitess,netroby/vitess,anusornc/vitess,anusornc/vitess,HeisenbergUncertain/vitess,SDHM/vitess,anusornc/vitess,enisoc/vitess,mattharden/vitess,mlc0202/vitess,mattharden/vitess,michael-berlin/vitess,skyportsystems/vitess,SDHM/vitess,AndyDiamondstein/vitess,erzel/vitess,tjyang/vitess,erzel/vitess,tjyang/vitess,mapbased/vitess,fengshao0907/vitess,skyportsystems/vitess,tinyspeck/vitess,AndyDiamondstein/vitess,aaijazi/vitess,pivanof/vitess,HubSpot/vitess,atyenoria/vitess,tjyang/vitess,rnavarro/vitess,erzel/vitess,yangzhongj/vitess,michael-berlin/vitess,yangzhongj/vitess,dumbunny/vitess,skyportsystems/vitess,xgwubin/vitess,mahak/vitess,dcadevil/vitess,guokeno0/vitess,netroby/vitess,yangzhongj/vitess,pivanof/vitess,sougou/vitess,kmiku7/vitess-annotated,enisoc/vitess,davygeek/vitess,tjyang/vitess,tirsen/vitess,applift/vitess,netroby/vitess,yaoshengzhe/vitess,netroby/vitess,CERN-Stage-3/vitess,fengshao0907/vitess,mattharden/vitess,alainjobart/vitess,mattharden/vitess,apmichaud/vitess-apm,mlc0202/vitess,nurblieh/vitess