pep8 and change opt name.

theano/tensor/opt.py

@@ -2142,7 +2142,7 @@ def local_inplace_setsubtensor(node):
         new_node = new_op(*node.inputs)
         return [new_node]
     return False
-compile.optdb.register('inplace_setsubtensor',
+compile.optdb.register('local_inplace_setsubtensor',
                        TopoOptimizer(local_inplace_setsubtensor,
     failure_callback=TopoOptimizer.warn_inplace), 60,
                        'fast_run', 'inplace')  # DEBUG