It worked!  Now just one last pep8 fix
@@ -25,7 +25,6 @@ that do NOT return a modified version of the original image.
'''
from .__funcs__ import align_image_with_openpnm
from .__funcs__ import bbox_to_slices
-#from .__funcs__ import combine_regions
from .__funcs__ import extend_slice
from .__funcs__ import extract_subsection
from .__funcs__ import extract_cylinder
