Fix type in wrapping tutorial.
Fix type in wrapping tutorial.

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