diff --git a/pykolab/cli/__init__.py b/pykolab/cli/__init__.py
--- a/pykolab/cli/__init__.py
+++ b/pykolab/cli/__init__.py
@@ -16,7 +16,11 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
-
+try:
+    # Python 2: "reload" is built-in
+    reload
+except NameError:
+    from importlib import reload
 import ldap
 import ldif
 import logging
diff --git a/pykolab/wap_client/__init__.py b/pykolab/wap_client/__init__.py
--- a/pykolab/wap_client/__init__.py
+++ b/pykolab/wap_client/__init__.py
@@ -1,6 +1,9 @@
 
 import json
-import httplib
+try:
+    import httplib
+except ImportError:
+    import http.client as httplib
 import urllib
 import sys
 try:
diff --git a/wallace/__init__.py b/wallace/__init__.py
--- a/wallace/__init__.py
+++ b/wallace/__init__.py
@@ -31,7 +31,10 @@
 import struct
 import sys
 import tempfile
-from threading import _Timer
+try:
+    from threading import _Timer
+except:
+    from threading import Timer as _Timer
 import time
 
 import pykolab