fix typo in PyPy fallback
fix typo in PyPy fallback

cython/cython,fabianrost84/cython,cython/cython,cython/cython,fabianrost84/cython,scoder/cython,ChristopherHogan/cython,c-blake/cython,c-blake/cython,ChristopherHogan/cython,scoder/cython,c-blake/cython,fabianrost84/cython,scoder/cython,da-woods/cython,cython/cython,ChristopherHogan/cython,da-woods/cython,c-blake/cython,da-woods/cython,scoder/cython,fabianrost84/cython,fabianrost84/cython,c-blake/cython,da-woods/cython