fixing reboundop import
@@ -6,7 +6,7 @@ import theano
import theano.tensor as tt
from theano.tests import unittest_tools as utt
-from exoplanet.theano_ops.rebound.rebound import ReboundOp
+from exoplanet.theano_ops.rebound import ReboundOp
try:
import rebound # NOQA
