try to fix flake8
@@ -26,7 +26,7 @@ CUDA_ARRAY_INTERFACE_EXPORT_VERSION = int(
os.environ.get('CUPY_CUDA_ARRAY_INTERFACE_EXPORT_VERSION', 3))
-CUPY_DLPACK_EXPORT_VERSION = tuple([int(x) for x in
+CUPY_DLPACK_EXPORT_VERSION = tuple([int(x) for x in \
os.environ.get('CUPY_DLPACK_EXPORT_VERSION', '0.6').split('.')])
