diff --git a/isso/__init__.py b/isso/__init__.py
index 1141d33..b610817 100644
--- a/isso/__init__.py
+++ b/isso/__init__.py
@@ -29,7 +29,7 @@ from itsdangerous import URLSafeTimedSerializer
 from werkzeug.routing import Map, Rule
 from werkzeug.serving import run_simple
 from werkzeug.wrappers import Request, Response
-from werkzeug.exceptions import HTTPException, NotFound, NotImplemented, InternalServerError
+from werkzeug.exceptions import HTTPException, NotFound, InternalServerError
 
 from isso import admin, comment, db, utils
 
diff --git a/isso/admin.py b/isso/admin.py
index db4fd0d..883ec97 100644
--- a/isso/admin.py
+++ b/isso/admin.py
@@ -1,3 +1,7 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright 2012, Martin Zimmermann <info@posativ.org>. All rights reserved.
+# License: BSD Style, 2 clauses. see isso/__init__.py
 
 from werkzeug.wrappers import Response
 
diff --git a/isso/comment.py b/isso/comment.py
index 56a1f49..2bd0f50 100644
--- a/isso/comment.py
+++ b/isso/comment.py
@@ -1,3 +1,7 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright 2012, Martin Zimmermann <info@posativ.org>. All rights reserved.
+# License: BSD Style, 2 clauses. see isso/__init__.py
 
 from werkzeug.wrappers import Response
 from werkzeug.exceptions import abort
diff --git a/isso/db.py b/isso/db.py
index 6aa2d3a..f408443 100644
--- a/isso/db.py
+++ b/isso/db.py
@@ -1,3 +1,7 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright 2012, Martin Zimmermann <info@posativ.org>. All rights reserved.
+# License: BSD Style, 2 clauses. see isso/__init__.py
 
 import abc
 import time
diff --git a/isso/models.py b/isso/models.py
index 5d84ef9..65141a1 100644
--- a/isso/models.py
+++ b/isso/models.py
@@ -1,3 +1,7 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright 2012, Martin Zimmermann <info@posativ.org>. All rights reserved.
+# License: BSD Style, 2 clauses. see isso/__init__.py
 
 import json
 import time
diff --git a/isso/utils.py b/isso/utils.py
index 273d823..4b59761 100644
--- a/isso/utils.py
+++ b/isso/utils.py
@@ -1,17 +1,11 @@
+# -*- encoding: utf-8 -*-
+#
+# Copyright 2012, Martin Zimmermann <info@posativ.org>. All rights reserved.
+# License: BSD Style, 2 clauses. see isso/__init__.py
 
 import json
 from isso.models import Comment
 
-# def prove(f):
-
-#     def dec(app, env, req, *args, **kwargs):
-
-#         pass
-
-
-# def sign(response):
-#     pass
-
 
 class IssoEncoder(json.JSONEncoder):