fix typo in utility code
fix typo in utility code

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