diff --git a/lib/yaml/representer.py b/lib/yaml/representer.py
index 9dca41af..93e09b67 100644
--- a/lib/yaml/representer.py
+++ b/lib/yaml/representer.py
@@ -3,11 +3,12 @@
     'RepresenterError']
 
 from error import *
+
 from nodes import *
 
 import datetime
 
-import sys, copy_reg, types
+import copy_reg, types
 
 class RepresenterError(YAMLError):
     pass
diff --git a/lib3/yaml/representer.py b/lib3/yaml/representer.py
index dd144017..3b0b192e 100644
--- a/lib3/yaml/representer.py
+++ b/lib3/yaml/representer.py
@@ -5,7 +5,7 @@
 from .error import *
 from .nodes import *
 
-import datetime, sys, copyreg, types, base64, collections
+import datetime, copyreg, types, base64, collections
 
 class RepresenterError(YAMLError):
     pass
diff --git a/setup.py b/setup.py
index a1a2baa1..1905fe52 100644
--- a/setup.py
+++ b/setup.py
@@ -65,7 +65,6 @@
 from distutils.core import setup, Command
 from distutils.core import Distribution as _Distribution
 from distutils.core import Extension as _Extension
-from distutils.dir_util import mkpath
 from distutils.command.build_ext import build_ext as _build_ext
 from distutils.command.bdist_rpm import bdist_rpm as _bdist_rpm
 from distutils.errors import DistutilsError, CompileError, LinkError, DistutilsPlatformError