diff --git a/senpy/__init__.py b/senpy/__init__.py
index c9cfdf0..5c80f53 100644
--- a/senpy/__init__.py
+++ b/senpy/__init__.py
@@ -17,7 +17,9 @@
 """
 Sentiment analysis server in Python
 """
-from __future__ import print_function
+from future import standard_library
+standard_library.install_aliases()
+
 from .version import __version__
 
 import logging
diff --git a/senpy/extensions.py b/senpy/extensions.py
index c691ec8..5797c44 100644
--- a/senpy/extensions.py
+++ b/senpy/extensions.py
@@ -2,8 +2,6 @@
 Main class for Senpy.
 It orchestrates plugin (de)activation and analysis.
 """
-from future import standard_library
-standard_library.install_aliases()
 
 from .plugins import SentimentPlugin, SenpyPlugin
 from .models import Error, Entry, Results
diff --git a/senpy/plugins/conversion/centroids.py b/senpy/plugins/conversion/centroids.py
index 0d0b899..bb02a76 100644
--- a/senpy/plugins/conversion/centroids.py
+++ b/senpy/plugins/conversion/centroids.py
@@ -13,7 +13,7 @@ class CentroidConversion(EmotionConversionPlugin):
         for e in original.onyx__hasEmotion:
             category = e.onyx__hasEmotionCategory
             if category in self.centroids:
-                for dim, value in self.centroids[category].iteritems():
+                for dim, value in self.centroids[category].items():
                     try:
                         res[dim] += value
                     except Exception: