have travis use the devpi index to get the pylib dependency
have travis use the devpi index to get the pylib dependency

etataurov/pytest,Haibo-Wang-ORG/pytest,chillbear/pytest,hunse/pytest,omarkohl/pytest,rmfitzpatrick/pytest,mdboom/pytest,gabrielcnr/pytest,ionelmc/pytest,Bjwebb/pytest,MengJueM/pytest,ericdill/pytest,ionelmc/pytest,The-Compiler/pytest,wfxiang08/pytest,Akasurde/pytest,flub/pytest,lukas-bednar/pytest,Bachmann1234/pytest,Bachmann1234/pytest,userzimmermann/pytest,tgoodlet/pytest,vodik/pytest,JonathonSonesen/pytest,ropez/pytest,Carreau/pytest,MichaelAquilina/pytest,markshao/pytest,ojake/pytest,gabrielcnr/pytest,jb098/pytest,pfctdayelise/pytest,lukas-bednar/pytest,untitaker/pytest,hackebrot/pytest,ericdill/pytest,bukzor/pytest,pelme/pytest,bukzor/pytest,RonnyPfannschmidt/pytest,alfredodeza/pytest,ropez/pytest,nicoddemus/repo-test,vodik/pytest,codewarrior0/pytest,inirudebwoy/pytest,ojake/pytest,inirudebwoy/pytest,codewarrior0/pytest,JonathonSonesen/pytest,Carreau/pytest,nicoddemus/pytest,userzimmermann/pytest,nicoddemus/repo-test,The-Compiler/pytest,jaraco/pytest,mbirtwell/pytest,bubenkoff/pytest,mhils/pytest,malinoff/pytest,eli-b/pytest,pelme/pytest,mbirtwell/pytest,hpk42/pytest,wfxiang08/pytest,takluyver/pytest,ddboline/pytest,mhils/pytest,pytest-dev/pytest,icemac/pytest,ghostsquad/pytest,Haibo-Wang-ORG/pytest,chiller/pytest,untitaker/pytest,abusalimov/pytest,takluyver/pytest,icemac/pytest,hpk42/pytest,chiller/pytest,nicoddemus/pytest,davidszotten/pytest,oleg-alexandrov/pytest,oleg-alexandrov/pytest,txomon/pytest,doordash/pytest,tareqalayan/pytest,MengJueM/pytest,mdboom/pytest,vmalloc/dessert,ghostsquad/pytest,skylarjhdownes/pytest,abusalimov/pytest,jb098/pytest,doordash/pytest,rouge8/pytest,tomviner/pytest,rouge8/pytest,omarkohl/pytest,hunse/pytest,Bjwebb/pytest,bubenkoff/pytest,chillbear/pytest,tomviner/pytest