Fix test and lower constraints

This fixes failures for PyYAML new version and
lower constraints.

Change-Id: Iba863242365c4be63495600b741513c2ca0ea9b0

heatclient/tests/functional/osc/v1/test_readonly.py

@@ -91,7 +91,7 @@ class SimpleReadOnlyOpenStackClientTest(base.OpenStackClientTestBase):
     def test_openstack_resource_type_show(self):
         rsrc_schema = self.openstack('orchestration resource type show '
                                      'OS::Heat::RandomString')
-        self.assertIsInstance(yaml.load(rsrc_schema), dict)
+        self.assertIsInstance(yaml.safe_load(rsrc_schema), dict)
 
     def _template_validate(self, templ_name, parms):
         heat_template_path = self.get_template_path(templ_name)

lower-constraints.txt

@@ -8,9 +8,9 @@ cmd2==0.8.0
 coverage==4.0
 cryptography==2.7
 debtcollector==1.2.0
-decorator==3.4.0
+decorator==4.3.0
 deprecation==1.0
-docutils==0.11
+docutils==0.13.1
 dogpile.cache==0.6.2
 dulwich==0.15.0
 extras==1.0.0
@@ -31,7 +31,7 @@ linecache2==1.0.0
 MarkupSafe==1.0
 mccabe==0.6.0
 monotonic==0.6
-msgpack-python==0.4.0
+msgpack-python==0.5.6
 munch==2.1.0
 netaddr==0.7.18
 netifaces==0.10.4
@@ -69,7 +69,7 @@ python-novaclient==9.1.0
 python-openstackclient==3.12.0
 python-subunit==1.0.0
 python-swiftclient==3.2.0
-pytz==2013.6
+pytz==2018.3
 PyYAML==3.13
 requests-mock==1.2.0
 requests==2.14.2