diff --git a/src/gui/__init__.py b/src/gui/__init__.py
--- a/src/gui/__init__.py
+++ b/src/gui/__init__.py
@@ -8,7 +8,7 @@ import config
 from epoint import EPoint
 from corners import Corners
 import image_analyzer
-from go import Go
+import go
 from grid import Grid
 
 
@@ -151,10 +151,10 @@ class BoardView(tk.Canvas):
 	#
 	#  @param r row coordinate, [0-18], counted from top
 	#  @param c column coordinate, [0-18], counted from left
-	#  @param color color indicator, Go.BLACK or Go.WHITE
+	#  @param color color indicator, go.BLACK or go.WHITE
 	def drawStone(self,r,c,color):
-		if color==Go.BLACK: hexCode='#000000'
-		elif color==Go.WHITE: hexCode='#ffffff'
+		if color==go.BLACK: hexCode='#000000'
+		elif color==go.WHITE: hexCode='#ffffff'
 		else: return False
 		r+=1
 		c+=1