diff --git a/decision_tree/dt_author_id.py b/decision_tree/dt_author_id.py
index 006afb8357b..10fceed74bb 100644
--- a/decision_tree/dt_author_id.py
+++ b/decision_tree/dt_author_id.py
@@ -24,7 +24,13 @@
 
 #########################################################
 ### your code goes here ###
+from sklearn import tree
+clf=tree.DecisionTreeClassifier()
+clf.fit(features_train, labels_train )
+pred=clf.predict(features_test)
 
+from sklearn.metrics import accuracy_score
+acc=accuracy_score(pred,labels_test)
 
 #########################################################