diff --git a/skimage/graph/__init__.py b/skimage/graph/__init__.py
index 29bcb031..6da4fcc8 100644
--- a/skimage/graph/__init__.py
+++ b/skimage/graph/__init__.py
@@ -1,9 +1,7 @@
 from .spath import shortest_path
 from .mcp import MCP, MCP_Geometric, MCP_Connect, MCP_Flexible, route_through_array
-from .rag import rag_mean_color, RAG
 from .graph_cut import cut_threshold, cut_normalized
 from .rag import rag_mean_color, RAG, draw_rag
-from .graph_cut import cut_threshold
 ncut = cut_normalized
 
 
diff --git a/skimage/graph/rag.py b/skimage/graph/rag.py
index e1ab79ca..74e4ab07 100644
--- a/skimage/graph/rag.py
+++ b/skimage/graph/rag.py
@@ -22,7 +22,6 @@ except ImportError:
     pass
 
 
-
 def min_weight(graph, src, dst, n):
     """Callback to handle merging nodes by choosing minimum weight.