do not fail the travis build if Python debug packages are missing
do not fail the travis build if Python debug packages are missing

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