Fix remaining problems with old interfaces.

theano/__init__.py

@@ -191,3 +191,5 @@ def sparse_grad(var):
     ret = var.owner.op.__class__(sparse_grad=True)(*var.owner.inputs)
     return ret
 
+
+__import__('theano.tensor.shared_randomstreams')

theano/sandbox/scan.py

@@ -478,7 +478,7 @@ def scan(fn,
     # If we use a regular dict here, the results are non-deterministic
     if not isinstance(updates, (list, tuple)):
         if isinstance(updates, dict) and \
-            not isinstance(updates, compat.python2x.OrderedDict):
+            not isinstance(updates, OrderedDict):
                 warnings.warn("Using non-deterministic dictionary.")
 
     dummy_f = function(dummy_args,

theano/tensor/tests/test_type_other.py

@@ -10,7 +10,7 @@ def test_make_slice_merge():
     s1 = make_slice(0, i)
     s2 = make_slice(0, i)
     f = theano.function([i], [s1, s2])
-    nodes = f.maker.fgraph.nodes
+    nodes = f.maker.fgraph.apply_nodes
     assert len([n for n in nodes if isinstance(n.op, MakeSlice)]) == 1
     theano.printing.debugprint(f)