diff --git a/cas_server/auth.py b/cas_server/auth.py
index dd764b6..160adc2 100644
--- a/cas_server/auth.py
+++ b/cas_server/auth.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
diff --git a/cas_server/cas.py b/cas_server/cas.py
index fdc22fb..9eec396 100644
--- a/cas_server/cas.py
+++ b/cas_server/cas.py
@@ -20,6 +20,7 @@
 
 # This file is originated from https://github.com/python-cas/python-cas
 # at commit ec1f2d4779625229398547b9234d0e9e874a2c9a
+# some modifications have been made to be unicode coherent between python2 and python2
 
 import six
 from six.moves.urllib import parse as urllib_parse
diff --git a/cas_server/default_settings.py b/cas_server/default_settings.py
index be3f064..6b418fd 100644
--- a/cas_server/default_settings.py
+++ b/cas_server/default_settings.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
@@ -8,7 +8,7 @@
 # along with this program; if not, write to the Free Software Foundation, Inc., 51
 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 #
-# (c) 2015 Valentin Samir
+# (c) 2015-2016 Valentin Samir
 """Default values for the app's settings"""
 from django.conf import settings
 from django.contrib.staticfiles.templatetags.staticfiles import static
diff --git a/cas_server/federate.py b/cas_server/federate.py
index d2ddcb1..997e56f 100644
--- a/cas_server/federate.py
+++ b/cas_server/federate.py
@@ -8,7 +8,7 @@
 # along with this program; if not, write to the Free Software Foundation, Inc., 51
 # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 #
-# (c) 2015 Valentin Samir
+# (c) 2016 Valentin Samir
 """federated mode helper classes"""
 from .default_settings import settings
 
diff --git a/cas_server/management/commands/cas_clean_federate.py b/cas_server/management/commands/cas_clean_federate.py
index 8d91935..795230a 100644
--- a/cas_server/management/commands/cas_clean_federate.py
+++ b/cas_server/management/commands/cas_clean_federate.py
@@ -1,3 +1,14 @@
+# -*- coding: utf-8 -*-
+# 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 version 3 for
+# more details.
+#
+# You should have received a copy of the GNU General Public License version 3
+# along with this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# (c) 2016 Valentin Samir
 from django.core.management.base import BaseCommand
 from django.utils.translation import ugettext_lazy as _
 
diff --git a/cas_server/management/commands/cas_clean_sessions.py b/cas_server/management/commands/cas_clean_sessions.py
index 3d32090..437bcb5 100644
--- a/cas_server/management/commands/cas_clean_sessions.py
+++ b/cas_server/management/commands/cas_clean_sessions.py
@@ -1,3 +1,14 @@
+# -*- coding: utf-8 -*-
+# 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 version 3 for
+# more details.
+#
+# You should have received a copy of the GNU General Public License version 3
+# along with this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# (c) 2016 Valentin Samir
 """Clean deleted sessions management command"""
 from django.core.management.base import BaseCommand
 from django.utils.translation import ugettext_lazy as _
diff --git a/cas_server/management/commands/cas_clean_tickets.py b/cas_server/management/commands/cas_clean_tickets.py
index dfbd4ec..87d802e 100644
--- a/cas_server/management/commands/cas_clean_tickets.py
+++ b/cas_server/management/commands/cas_clean_tickets.py
@@ -1,3 +1,14 @@
+# -*- coding: utf-8 -*-
+# 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 version 3 for
+# more details.
+#
+# You should have received a copy of the GNU General Public License version 3
+# along with this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# (c) 2016 Valentin Samir
 """Clean old trickets management command"""
 from django.core.management.base import BaseCommand
 from django.utils.translation import ugettext_lazy as _
diff --git a/cas_server/models.py b/cas_server/models.py
index 581017d..17c4d83 100644
--- a/cas_server/models.py
+++ b/cas_server/models.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
diff --git a/cas_server/tests/mixin.py b/cas_server/tests/mixin.py
index 4612fd2..09ddadc 100644
--- a/cas_server/tests/mixin.py
+++ b/cas_server/tests/mixin.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
diff --git a/cas_server/tests/test_models.py b/cas_server/tests/test_models.py
index 93825d8..e027429 100644
--- a/cas_server/tests/test_models.py
+++ b/cas_server/tests/test_models.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
diff --git a/cas_server/tests/test_utils.py b/cas_server/tests/test_utils.py
index 411848a..f2fcbfc 100644
--- a/cas_server/tests/test_utils.py
+++ b/cas_server/tests/test_utils.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
diff --git a/cas_server/tests/utils.py b/cas_server/tests/utils.py
index 6017c2f..67e7c7b 100644
--- a/cas_server/tests/utils.py
+++ b/cas_server/tests/utils.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
diff --git a/cas_server/urls.py b/cas_server/urls.py
index 48ac4b7..5881557 100644
--- a/cas_server/urls.py
+++ b/cas_server/urls.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for
diff --git a/cas_server/views.py b/cas_server/views.py
index 1e2edf0..55ecec4 100644
--- a/cas_server/views.py
+++ b/cas_server/views.py
@@ -1,4 +1,4 @@
-# ⁻*- coding: utf-8 -*-
+# -*- coding: utf-8 -*-
 # 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 version 3 for