diff --git a/lib/_range.py b/lib/_range.py
index ee9c329e..c1facc0f 100644
--- a/lib/_range.py
+++ b/lib/_range.py
@@ -181,11 +181,8 @@ class Range(object):
             return self.__gt__(other)
 
     def __getstate__(self):
-        return dict(
-            (slot, getattr(self, slot))
-            for slot in self.__slots__
-            if hasattr(self, slot)
-        )
+        return {slot: getattr(self, slot)
+            for slot in self.__slots__ if hasattr(self, slot)}
 
     def __setstate__(self, state):
         for slot, value in state.items():
diff --git a/lib/extensions.py b/lib/extensions.py
index 91b81331..d15f76c9 100644
--- a/lib/extensions.py
+++ b/lib/extensions.py
@@ -163,7 +163,7 @@ def make_dsn(dsn=None, **kwargs):
         kwargs['dbname'] = kwargs.pop('database')
 
     # Drop the None arguments
-    kwargs = dict((k, v) for (k, v) in kwargs.iteritems() if v is not None)
+    kwargs = {k: v for (k, v) in kwargs.iteritems() if v is not None}
 
     if dsn is not None:
         tmp = parse_dsn(dsn)