As suggested by Eric Day:

 * changed request.environ version key to more descriptive 'api.version'
 * removed python3 string formatting
 * added licenses to headers on new files

6 files changed, 82 insertions, 11 deletions

diff --git a/nova/api/openstack/auth.py b/nova/api/openstack/auth.py
index c820a5963..7ae285019 100644
--- a/nova/api/openstack/auth.py
+++ b/nova/api/openstack/auth.py
@@ -70,7 +70,7 @@ class AuthMiddleware(wsgi.Middleware):
 
         req.environ['nova.context'] = context.RequestContext(user, account)
         version = req.path.split('/')[1].replace('v', '')
-        req.environ['version'] = version
+        req.environ['nova.api.openstack.version'] = version
         return self.application
 
     def has_authentication(self, req):
diff --git a/nova/api/openstack/common.py b/nova/api/openstack/common.py
index 74ac21024..d94969ff5 100644
--- a/nova/api/openstack/common.py
+++ b/nova/api/openstack/common.py
@@ -74,3 +74,6 @@ def get_image_id_from_image_hash(image_service, context, image_hash):
         if abs(hash(image_id)) == int(image_hash):
             return image_id
     raise exception.NotFound(image_hash)
+
+def get_api_version(req):
+    return req.environ.get('api.version')
diff --git a/nova/api/openstack/views/addresses.py b/nova/api/openstack/views/addresses.py
index 65c24dbd7..9d392aace 100644
--- a/nova/api/openstack/views/addresses.py
+++ b/nova/api/openstack/views/addresses.py
@@ -1,6 +1,22 @@
-import hashlib
-from nova.compute import power_state
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010-2011 OpenStack LLC.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
 from nova import utils
+from nova.api.openstack import common
 
 
 def get_view_builder(req):
@@ -8,7 +24,7 @@ def get_view_builder(req):
     A factory method that returns the correct builder based on the version of
     the api requested.
     '''
-    version = req.environ['version']
+    version = common.get_api_version(req)
     if version == '1.1':
         return ViewBuilder_1_1()
     else:
diff --git a/nova/api/openstack/views/flavors.py b/nova/api/openstack/views/flavors.py
index f945f9f8f..aa3c2aeb2 100644
--- a/nova/api/openstack/views/flavors.py
+++ b/nova/api/openstack/views/flavors.py
@@ -1,11 +1,28 @@
-
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010-2011 OpenStack LLC.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from nova.api.openstack import common
 
 def get_view_builder(req):
     '''
     A factory method that returns the correct builder based on the version of
     the api requested.
     '''
-    version = req.environ['version']
+    version = common.get_api_version(req)
     base_url = req.application_url
     if version == '1.1':
         return ViewBuilder_1_1(base_url)
@@ -26,7 +43,7 @@ class ViewBuilder_1_1(ViewBuilder):
         self.base_url = base_url
 
     def generate_href(self, flavor_id):
-        return "{0}/flavors/{1}".format(self.base_url, flavor_id)
+        return "%s/flavors/%s" % (self.base_url, flavor_id)
 
 
 class ViewBuilder_1_0(ViewBuilder):
diff --git a/nova/api/openstack/views/images.py b/nova/api/openstack/views/images.py
index a59d4a557..930b464b0 100644
--- a/nova/api/openstack/views/images.py
+++ b/nova/api/openstack/views/images.py
@@ -1,11 +1,28 @@
-
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010-2011 OpenStack LLC.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from nova.api.openstack import common
 
 def get_view_builder(req):
     '''
     A factory method that returns the correct builder based on the version of
     the api requested.
     '''
-    version = req.environ['version']
+    version = common.get_api_version(req)
     base_url = req.application_url
     if version == '1.1':
         return ViewBuilder_1_1(base_url)
@@ -26,7 +43,7 @@ class ViewBuilder_1_1(ViewBuilder):
         self.base_url = base_url
 
     def generate_href(self, image_id):
-        return "{0}/images/{1}".format(self.base_url, image_id)
+        return "%s/images/%s" % (self.base_url, image_id)
 
 
 class ViewBuilder_1_0(ViewBuilder):
diff --git a/nova/api/openstack/views/servers.py b/nova/api/openstack/views/servers.py
index 2549cc11c..261acfed0 100644
--- a/nova/api/openstack/views/servers.py
+++ b/nova/api/openstack/views/servers.py
@@ -1,5 +1,23 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010-2011 OpenStack LLC.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
 import hashlib
 from nova.compute import power_state
+from nova.api.openstack import common
 from nova.api.openstack.views import addresses as addresses_view
 from nova.api.openstack.views import flavors as flavors_view
 from nova.api.openstack.views import images as images_view
@@ -11,7 +29,7 @@ def get_view_builder(req):
     A factory method that returns the correct builder based on the version of
     the api requested.
     '''
-    version = req.environ['version']
+    version = common.get_api_version(req)
     addresses_builder = addresses_view.get_view_builder(req)
     if version == '1.1':
         flavor_builder = flavors_view.get_view_builder(req)