allow file to be compiled on 2.5
allow file to be compiled on 2.5

--HG--
branch : trunk

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