fixing case in filename
@@ -499,7 +499,7 @@ def spheres_to_comsol(filename, im=None, centers=None, radii=None):
beyond the edge of the image.
"""
- from .__COMSOL__ import _save_to_comsol
+ from .__comsol__ import _save_to_comsol
if im is not None:
if im.ndim != 3:
raise Exception('Image must be 3D.')
