Fixed issues on Python 3

Blueprint: murano-python-3-support
Change-Id: I01a095dc2c8953d177a8b13c1b97ddb4561d6e5f

muranodashboard/api/packages.py

@@ -69,7 +69,7 @@ def app_by_fqn(request, fqn, catalog=True, version=None):
         kwargs['version'] = version
     apps = api.muranoclient(request).packages.filter(**kwargs)
     try:
-        return apps.next()
+        return next(apps)
     except StopIteration:
         return None
 

muranodashboard/catalog/views.py

@@ -342,8 +342,7 @@ class Wizard(generic_views.PageTitleMixin, views.ModalFormMixin, LazyWizard):
 
     def done(self, form_list, **kwargs):
         app_name = self.storage.extra_data['app'].name
-
-        service = form_list[0].service
+        service = tuple(form_list)[0].service
         attributes = service.extract_attributes()
         attributes = helpers.insert_hidden_ids(attributes)
 

muranodashboard/dynamic_ui/services.py

@@ -255,7 +255,7 @@ def get_app_forms(request, kwargs):
         return _get_form_name(i, form, _('Step {0}'))
 
     step_names = [get_form_name(*pair) for pair in enumerate(app.forms)]
-    return zip(step_names, app.forms)
+    return list(zip(step_names, app.forms))
 
 
 def service_type_from_id(service_id):

muranodashboard/tests/unit/packages/test_api.py

@@ -13,14 +13,28 @@
 # under the License.
 
 import mock
+from six import PY3
 
 from muranoclient.v1 import client
 from muranodashboard.api import packages
 from openstack_dashboard.test import helpers
 
 
-class TestPackagesAPI(helpers.APITestCase):
+def mock_next(obj, attr, value):
+    if PY3:
+        setattr(obj.__next__, attr, value)
+    else:
+        setattr(obj.next, attr, value)
 
+
+class MagicIterMock(mock.MagicMock):
+    if PY3:
+        __next__ = mock.Mock(return_value=None)
+    else:
+        next = mock.Mock(return_value=None)
+
+
+class TestPackagesAPI(helpers.APITestCase):
     def setUp(self):
         super(TestPackagesAPI, self).setUp()
 
@@ -84,8 +98,12 @@ class TestPackagesAPI(helpers.APITestCase):
             inherits='test_fqn')
 
     def test_app_by_fqn(self):
-        self.mock_client = mock.Mock(spec=client)
-        self.mock_client.packages.filter().next.return_value = self.packages[0]
+        self.mock_client = MagicIterMock(spec=client)
+        mock_next(
+            self.mock_client.packages.filter(),
+            'return_value',
+            self.packages[0]
+        )
         packages.api.muranoclient.return_value = self.mock_client
         self.mock_client.reset_mock()
 
@@ -98,8 +116,12 @@ class TestPackagesAPI(helpers.APITestCase):
             fqn='test_fqn', catalog=True, version='1.0')
 
     def test_app_by_fqn_except_stop_iteration(self):
-        self.mock_client = mock.Mock(spec=client)
-        self.mock_client.packages.filter().next.side_effect = StopIteration
+        self.mock_client = MagicIterMock(spec=client)
+        mock_next(
+            self.mock_client.packages.filter(),
+            'side_effect',
+            StopIteration
+        )
         packages.api.muranoclient.return_value = self.mock_client
         self.mock_client.reset_mock()
 
@@ -145,7 +167,7 @@ class TestPackagesAPI(helpers.APITestCase):
                 return_value=None)
     @mock.patch('muranodashboard.common.cache._save_to_file')
     def test_get_app_supplier_logo(self, *args):
-        mock_get_supplier_logo = packages.api.muranoclient().packages.\
+        mock_get_supplier_logo = packages.api.muranoclient().packages. \
             get_supplier_logo
         mock_get_supplier_logo.return_value = 'foo_app_supplier_logo'