flake8 for neighbours.py

theano/sandbox/neighbours.py

@@ -3,4 +3,6 @@ Neighbours was moved into theano.tensor.nnet.neighbours.
 This file was created for compatibility.
 """
 from theano.tensor.nnet.neighbours import (images2neibs, neibs2images,
-    Images2Neibs)
+                                           Images2Neibs)
+
+__all__ = ["images2neibs", "neibs2images", "Images2Neibs"]

theano/tests/test_flake8.py

@@ -146,7 +146,6 @@ whitelist_flake8 = [
     "sandbox/symbolic_module.py",
     "sandbox/conv.py",
     "sandbox/debug.py",
-    "sandbox/neighbours.py",
     "sandbox/cuda/dnn.py",
     "sandbox/cuda/var.py",
     "sandbox/cuda/GpuConvGrad3D.py",