fix PYTHONPATH setting for end-to-end tests
fix PYTHONPATH setting for end-to-end tests

achernet/cython,madjar/cython,mrGeen/cython,hpfem/cython,dahebolangkuan/cython,hickford/cython,andreasvc/cython,scoder/cython,andreasvc/cython,fperez/cython,rguillebert/CythonCTypesBackend,dahebolangkuan/cython,hpfem/cython,fabianrost84/cython,c-blake/cython,slonik-az/cython,c-blake/cython,marscher/cython,ABcDexter/cython,hickford/cython,mcanthony/cython,bzzzz/cython,encukou/cython,madjar/cython,ABcDexter/cython,hhsprings/cython,rguillebert/CythonCTypesBackend,encukou/cython,acrispin/cython,cython/cython,bzzzz/cython,fperez/cython,ABcDexter/cython,encukou/cython,c-blake/cython,achernet/cython,acrispin/cython,JelleZijlstra/cython,andreasvc/cython,fabianrost84/cython,mcanthony/cython,bzzzz/cython,JelleZijlstra/cython,hpfem/cython,mcanthony/cython,fabianrost84/cython,roxyboy/cython,scoder/cython,encukou/cython,fperez/cython,mcanthony/cython,mrGeen/cython,marscher/cython,mrGeen/cython,achernet/cython,cython/cython,encukou/cython,c-blake/cython,fabianrost84/cython,slonik-az/cython,hickford/cython,acrispin/cython,slonik-az/cython,cython/cython,achernet/cython,andreasvc/cython,ChristopherHogan/cython,slonik-az/cython,JelleZijlstra/cython,ChristopherHogan/cython,ABcDexter/cython,JelleZijlstra/cython,ABcDexter/cython,mcanthony/cython,hickford/cython,fabianrost84/cython,acrispin/cython,marscher/cython,hickford/cython,rguillebert/CythonCTypesBackend,mrGeen/cython,JelleZijlstra/cython,hhsprings/cython,da-woods/cython,roxyboy/cython,acrispin/cython,hhsprings/cython,larsmans/cython,fperez/cython,larsmans/cython,da-woods/cython,slonik-az/cython,rguillebert/CythonCTypesBackend,da-woods/cython,c-blake/cython,roxyboy/cython,larsmans/cython,bzzzz/cython,achernet/cython,marscher/cython,scoder/cython,hpfem/cython,scoder/cython,mrGeen/cython,dahebolangkuan/cython,roxyboy/cython,hhsprings/cython,marscher/cython,madjar/cython,hhsprings/cython,ChristopherHogan/cython,hpfem/cython,cython/cython,larsmans/cython,dahebolangkuan/cython,fperez/cython,madjar/cython,andreasvc/cython,roxyboy/cython,da-woods/cython,madjar/cython,dahebolangkuan/cython,larsmans/cython