diff --git a/pykolab/constants.py.in b/pykolab/constants.py.in
index 0cd1f6d..b99c433 100644
--- a/pykolab/constants.py.in
+++ b/pykolab/constants.py.in
@@ -1,126 +1,128 @@
 # -*- coding: utf-8 -*-
 # Copyright 2010 Kolab Systems AG (http://www.kolabsys.com)
 #
 # Jeroen van Meeuwen (Kolab Systems) <vanmeeuwen a kolabsys.com>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+from __future__ import print_function
+
 import math
 import socket
 import sys
 
 from pykolab.translate import _
 
 __license__   = "GPLv2+"
 __copyright__ = "Kolab Systems AG"
 __version__   = '@VERSION@'
 __release__   = '@RELEASE@'
 
 if @RELEASE@ < 1:
     __status__    = 'snapshot'
 elif math.floor((float)(@RELEASE@)) < (float)(@RELEASE@):
     __status__    = 'prerelease'
 else:
     __status__    = 'stable'
 
 domain = 'pykolab'
 
 epilog = _("PyKolab is a Kolab Systems product. For more information about Kolab or PyKolab, visit http://www.kolabsys.com")
 
 COMPONENTS = [
         'imap',
         'ldap',
         'mta'
     ]
 
 hostname = socket.gethostname()
 fqdn = socket.getfqdn()
 try:
     domain_parts = fqdn.split('.')
     if len(domain_parts) < 3:
         print(_("WARNING") + ": " + _("The Fully Qualified Domain Name or FQDN for this system is incorrect. Falling back to 'localdomain'."), file=sys.stderr)
         domainname = "localdomain"
     else:
         domainname = '.'.join(domain_parts[1:])
 except IndexError:
     domainname = "localdomain"
 
 # The system RC directory
 RC_DIR = "/etc/rc.d/init.d/"
 KOLAB_LIB_PATH = '/var/lib/kolab/'
 
 # Service map;
 #
 # Convert names of registered system services to their type. For example,
 # on Red Hat, OpenLDAP is 'slapd', whereas on Debian, OpenLDAP is 'ldap'.
 #
 SERVICE_MAP = {
         'dirsrv': {
                 'type':         '389ds',
                 'description':  _('389 Directory Server or Red Hat Directory Server')
             },
         'ldap': {
                 'type':         'openldap',
                 'description':  _('OpenLDAP or compatible')
             },
         'slapd': {
                 'type':         'openldap',
                 'description':  _('OpenLDAP or compatible')
             },
     }
 
 import ldap
 LDAP_SCOPE = {
         'base': ldap.SCOPE_BASE,
         'sub': ldap.SCOPE_SUBTREE,
         'one': ldap.SCOPE_ONELEVEL
     }
 
 SUPPORTED_LDAP_CONTROLS = {
         0: {
                 'desc': 'Persistent Search Control',
                 'oid': '2.16.840.1.113730.3.4.3',
                 'func': '_persistent_search'
             },
         1: {
                 'desc': 'OpenLDAP Syncrepl (RFC4533)',
                 'oid': '1.3.6.1.4.1.4203.1.9.1.1',
                 'func': '_sync_repl'
             },
         2: {
                 'desc': 'Simple Paged Results Control',
                 'oid': '1.2.840.113556.1.4.319',
                 'func': '_paged_search'
             },
         3: {
                 'desc': 'Virtual List View Control',
                 'oid': '2.16.840.1.113730.3.4.9',
                 'func': '_vlv_search'
             },
     }
 
 #SUPPORTED_LDAP_CONTROLS = {
 #        0: {
 #                'desc': 'OpenLDAP Syncrepl (RFC4533)',
 #                'oid': '1.3.6.1.4.1.4203.1.9.1.1',
 #                'func': '_sync_repl'
 #            }
 #    }
 
 # Binay attributes which should not be stripped
 BINARY_ATTRS = (
         'objectguid',
         'objectsid'
     )