diff --git a/git/compat.py b/git/compat.py
@@ -30,7 +30,10 @@
is_win = (os.name == 'nt')
is_posix = (os.name == 'posix')
is_darwin = (os.name == 'darwin')
-defenc = sys.getdefaultencoding()

if PY3:
    import io

diff --git a/git/repo/base.py b/git/repo/base.py
@@ -4,6 +4,7 @@
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php

from collections import namedtuple
import logging
import os

diff --git a/requirements.txt b/requirements.txt
@@ -1,2 +1,3 @@
gitdb>=0.6.4
ddt>=1.1.1