Remove "complex already builtin" warning from cpython module.
Remove "complex already builtin" warning from cpython module.

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