diff --git a/src/py2.x/ml/3.DecisionTree/decisionTreePlot.py b/src/py2.x/ml/3.DecisionTree/decisionTreePlot.py
index 36d751f3..47baa714 100644
--- a/src/py2.x/ml/3.DecisionTree/decisionTreePlot.py
+++ b/src/py2.x/ml/3.DecisionTree/decisionTreePlot.py
@@ -118,7 +118,7 @@ def createPlot(inTree):
 # def createPlot():
 #     fig = plt.figure(1, facecolor='white')
 #     fig.clf()
-#     # ticks for demo puropses
+#     # ticks for demo purposes
 #     createPlot.ax1 = plt.subplot(111, frameon=False)
 #     plotNode('a decision node', (0.5, 0.1), (0.1, 0.5), decisionNode)
 #     plotNode('a leaf node', (0.8, 0.1), (0.3, 0.8), leafNode)
diff --git a/src/py3.x/ml/3.DecisionTree/decisionTreePlot.py b/src/py3.x/ml/3.DecisionTree/decisionTreePlot.py
index d6bf3d6a..0ace45d8 100644
--- a/src/py3.x/ml/3.DecisionTree/decisionTreePlot.py
+++ b/src/py3.x/ml/3.DecisionTree/decisionTreePlot.py
@@ -117,7 +117,7 @@ def createPlot(inTree):
 # def createPlot():
 #     fig = plt.figure(1, facecolor='white')
 #     fig.clf()
-#     # ticks for demo puropses
+#     # ticks for demo purposes
 #     createPlot.ax1 = plt.subplot(111, frameon=False)
 #     plotNode('a decision node', (0.5, 0.1), (0.1, 0.5), decisionNode)
 #     plotNode('a leaf node', (0.8, 0.1), (0.3, 0.8), leafNode)