Fix warning.
Fix warning.

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