diff --git a/libmetric/alarm.py b/libmetric/alarm.py
index e359e53..f0fff22 100644
--- a/libmetric/alarm.py
+++ b/libmetric/alarm.py
@@ -13,9 +13,9 @@ def _aggregate_series(self):
         return float(self.data_frame[self.series].item())
 
     def evaluate(self):
-        print "Question: {} {} {}?".format(self.alarm_threshold,
+        print("Question: {} {} {}?".format(self.alarm_threshold,
                                            self.alarm_operator,
-                                           self.value)
+                                           self.value))
         response = False
         if self.alarm_operator == 'gt':
             if self.alarm_threshold > self.value:
diff --git a/libmetric/cli.py b/libmetric/cli.py
index f188659..b8e0f0d 100644
--- a/libmetric/cli.py
+++ b/libmetric/cli.py
@@ -53,7 +53,7 @@ def _range_metric(engine, url, user, password, partition, query,
     else:
         raise Exception("Unsupported engine {}.".format(engine))
 
-    print query.get()
+    print(query.get())
 
 
 def range_metric():
@@ -121,7 +121,7 @@ def _range_alarm(engine, url, user, password, partition, query, start, end,
         'data_frame': data_frame
     }
     result = RangeAlarm(**alarm).evaluate()
-    print "Response: {}".format(result)
+    print("Response: {}".format(result))
 
 
 def range_alarm():
@@ -164,7 +164,7 @@ def _instant_metric(engine, url, user, password, partition, query, moment):
     else:
         raise Exception("Unsupported engine {}.".format(engine))
 
-    print query.get()
+    print(query.get())
 
 
 def instant_metric():
@@ -222,7 +222,7 @@ def _instant_alarm(engine, url, user, password, partition, query, moment,
         'data_frame': data_frame
     }
     result = InstantAlarm(**alarm).evaluate()
-    print "Response: {}".format(result)
+    print("Response: {}".format(result))
 
 
 def instant_alarm():
@@ -269,7 +269,7 @@ def _search_metrics(engine, url, user, password, partition, search,
     else:
         raise Exception("Unsupported engine {}".format(engine))
 
-    print search.get()
+    print(search.get())
 
 
 def search_metrics():
diff --git a/libmetric/query_range.py b/libmetric/query_range.py
index b157e40..8cf6212 100644
--- a/libmetric/query_range.py
+++ b/libmetric/query_range.py
@@ -211,9 +211,9 @@ def get(self):
         start, end, step = result[0]
         ds = result[1]
         rows = result[2]
-        print start, end, step
-        print ds
-        print rows
+        print(start, end, step)
+        print(ds)
+        print(rows)
 #        return self._process(data)
 
     def _url(self):
diff --git a/libmetric/search.py b/libmetric/search.py
index 6045e9c..0619909 100644
--- a/libmetric/search.py
+++ b/libmetric/search.py
@@ -62,7 +62,7 @@ def _url(self):
         return self.base_url + url
 
     def _process(self, response):
-        print response
+        print(response)
 
 
 class RrdSearch(Search):
@@ -75,7 +75,7 @@ def _url(self):
     def get(self):
         data_sources = set()
         info = rrdtool.info(self._url())
-        for datum, real_value in info.items():
+        for datum, real_value in list(info.items()):
             if datum.startswith('ds'):
                 value = datum.replace('ds[', '').split('].')
                 # if value[0] not in data_source: