use proper C-API function for generator finalisation
use proper C-API function for generator finalisation

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