diff --git a/cycler.py b/cycler.py
index 3c3eb2d..8050ca9 100644
--- a/cycler.py
+++ b/cycler.py
@@ -367,8 +367,7 @@ def by_key(self):
         # and if we care.
 
         keys = self.keys
-        # change this to dict comprehension when drop 2.6
-        out = dict((k,  list()) for k in keys)
+        out = {k: list() for k in keys}
 
         for d in self:
             for k in keys:
diff --git a/setup.py b/setup.py
index d70d29d..0cbff1c 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,6 @@
       license="BSD",
       classifiers=['Development Status :: 4 - Beta',
                    'Programming Language :: Python :: 2',
-                   'Programming Language :: Python :: 2.6',
                    'Programming Language :: Python :: 2.7',
                    'Programming Language :: Python :: 3',
                    'Programming Language :: Python :: 3.3',