diff --git a/color.py b/color.py
index 8b49e91..ca2275f 100644
--- a/color.py
+++ b/color.py
@@ -33,24 +33,26 @@ def add_color(name, value, abbrev):
 # assign every RGB triple (0-5) to one of six basic colors (red, yellow, green,
 # cyan, blue, magenta) based on some semi-arbitrary rules i came up with.
 def iter256():
-    ns = range(0, 6)
-    for r, g, b in itertools.product(ns, ns, ns):
-        if r >= g and g > b: name = 'yellow'
-        elif r >= b and b - g > 1: name = 'magenta'
+    ns = list(range(0, 6))
+    for r in ns:
+        for g in ns:
+            for b in ns:
+                if r >= g and g > b: name = 'yellow'
+                elif r >= b and b - g > 1: name = 'magenta'
 
-        elif b >= g and g - r > 2: name = 'cyan'
-        elif b >= r and r > g: name = 'magenta'
+                elif b >= g and g - r > 2: name = 'cyan'
+                elif b >= r and r > g: name = 'magenta'
 
-        elif g >= r and r - b > 2: name = 'yellow'
-        elif g >= b and b - r > 1: name = 'cyan'
+                elif g >= r and r - b > 2: name = 'yellow'
+                elif g >= b and b - r > 1: name = 'cyan'
 
-        elif r > b and r > g: name = 'red'
-        elif g > b and g > r: name = 'green'
-        elif b > r and b > g: name = 'blue'
+                elif r > b and r > g: name = 'red'
+                elif g > b and g > r: name = 'green'
+                elif b > r and b > g: name = 'blue'
 
-        else: continue
+                else: continue
 
-        yield (name, r, g, b)
+                yield (name, r, g, b)
     raise StopIteration
 
 # if we can support 256 colors, create all of the color names and map them to