Only create a venv when in jenkins
Only create a venv when in jenkins

Jenkins is configured to clean workspaces as a post-build action, so
every new build should be a new venv, nice and clean.

blueboxgroup/ursula,mjbrewer/ursula,allomov/ursula,pgraziano/ursula,zrs233/ursula,dlundquist/ursula,EricCrosson/ursula,kennjason/ursula,EricCrosson/ursula,msambol/ursula,allomov/ursula,rongzhus/ursula,j2sol/ursula,jwaibel/ursula,blueboxgroup/ursula,wupeiran/ursula,panxia6679/ursula,fancyhe/ursula,ryshah/ursula,davidcusatis/ursula,wupeiran/ursula,twaldrop/ursula,MaheshIBM/ursula,dlundquist/ursula,twaldrop/ursula,persistent-ursula/ursula,ryshah/ursula,jwaibel/ursula,andrewrothstein/ursula,dlundquist/ursula,aldevigi/ursula,wupeiran/ursula,lihkin213/ursula,zrs233/ursula,lihkin213/ursula,persistent-ursula/ursula,paulczar/ursula,twaldrop/ursula,knandya/ursula,j2sol/ursula,davidcusatis/ursula,andrewrothstein/ursula,panxia6679/ursula,MaheshIBM/ursula,greghaynes/ursula,masteinhauser/ursula,nirajdp76/ursula,ddaskal/ursula,paulczar/ursula,knandya/ursula,masteinhauser/ursula,ddaskal/ursula,andrewrothstein/ursula,greghaynes/ursula,sivakom/ursula,pbannister/ursula,allomov/ursula,narengan/ursula,nirajdp76/ursula,panxia6679/ursula,fancyhe/ursula,zrs233/ursula,twaldrop/ursula,kennjason/ursula,kennjason/ursula,narengan/ursula,channus/ursula,pbannister/ursula,masteinhauser/ursula,lihkin213/ursula,pgraziano/ursula,panxia6679/ursula,blueboxgroup/ursula,nirajdp76/ursula,rongzhus/ursula,wupeiran/ursula,zrs233/ursula,davidcusatis/ursula,aldevigi/ursula,fancyhe/ursula,fancyhe/ursula,mjbrewer/ursula,aldevigi/ursula,j2sol/ursula,ddaskal/ursula,persistent-ursula/ursula,knandya/ursula,sivakom/ursula,channus/ursula,persistent-ursula/ursula,narengan/ursula,jwaibel/ursula,masteinhauser/ursula,lihkin213/ursula,mjbrewer/ursula,pbannister/ursula,MaheshIBM/ursula,msambol/ursula,rongzhus/ursula,pgraziano/ursula,edtubillara/ursula,edtubillara/ursula,paulczar/ursula,channus/ursula,pgraziano/ursula,greghaynes/ursula,msambol/ursula,blueboxgroup/ursula,ddaskal/ursula,nirajdp76/ursula,knandya/ursula,j2sol/ursula,rongzhus/ursula,edtubillara/ursula,channus/ursula,ryshah/ursula,edtubillara/ursula,sivakom/ursula,EricCrosson/ursula,ryshah/ursula,narengan/ursula