Dropping the py35 testing

All the integration testing has been moved to
Bionic now[1] and py3.5 is not tested runtime for
Train or stable/stein[2].

As per below ML thread, we are good to drop the py35
testing now:
http://lists.openstack.org/pipermail/openstack-discuss/2019-April/005097.html

[1] http://lists.openstack.org/pipermail/openstack-discuss/2019-April/004647.html
[2]
https://governance.openstack.org/tc/reference/runtimes/stein.html
https://governance.openstack.org/tc/reference/runtimes/train.html

Change-Id: I0d658b3d18686845dc4d388ebbba32a0fc41529c

.zuul.yaml

@@ -3,7 +3,6 @@
       - check-requirements
       - openstack-lower-constraints-jobs
       - openstack-python-jobs
-      - openstack-python35-jobs
       - openstack-python36-jobs
       - openstack-python37-jobs
       - publish-openstack-docs-pti
@@ -13,17 +12,17 @@
         - vitrage-dsvm-api-py27
         - vitrage-dsvm-datasources-py27
         - vitrage-dsvm-mock-py27
-        - vitrage-dsvm-api-py35
-        - vitrage-dsvm-datasources-py35
-        - vitrage-dsvm-mock-py35
+        - vitrage-dsvm-api-py3
+        - vitrage-dsvm-datasources-py3
+        - vitrage-dsvm-mock-py3
         - grenade-vitrage
     gate:
       queue: vitrage
       jobs:
         - vitrage-dsvm-api-py27
         - vitrage-dsvm-datasources-py27
-        - vitrage-dsvm-api-py35
-        - vitrage-dsvm-datasources-py35
+        - vitrage-dsvm-api-py3
+        - vitrage-dsvm-datasources-py3
         - grenade-vitrage
 
 - job:
@@ -45,10 +44,10 @@
       - ^releasenotes/.*$
 
 - job:
-    name: vitrage-dsvm-api-py35
+    name: vitrage-dsvm-api-py3
     parent: legacy-dsvm-base
-    run: playbooks/legacy/vitrage-dsvm-api-py35/run.yaml
-    post-run: playbooks/legacy/vitrage-dsvm-api-py35/post.yaml
+    run: playbooks/legacy/vitrage-dsvm-api-py3/run.yaml
+    post-run: playbooks/legacy/vitrage-dsvm-api-py3/post.yaml
     timeout: 7800
     required-projects:
       - openstack-infra/devstack-gate
@@ -81,10 +80,10 @@
       - ^releasenotes/.*$
 
 - job:
-    name: vitrage-dsvm-datasources-py35
+    name: vitrage-dsvm-datasources-py3
     parent: legacy-dsvm-base
-    run: playbooks/legacy/vitrage-dsvm-datasources-py35/run.yaml
-    post-run: playbooks/legacy/vitrage-dsvm-datasources-py35/post.yaml
+    run: playbooks/legacy/vitrage-dsvm-datasources-py3/run.yaml
+    post-run: playbooks/legacy/vitrage-dsvm-datasources-py3/post.yaml
     timeout: 7800
     required-projects:
       - openstack-infra/devstack-gate
@@ -116,11 +115,11 @@
       - ^releasenotes/.*$
 
 - job:
-    name: vitrage-dsvm-mock-py35
+    name: vitrage-dsvm-mock-py3
     parent: legacy-dsvm-base
     voting: false
-    run: playbooks/legacy/vitrage-dsvm-mock-py35/run.yaml
-    post-run: playbooks/legacy/vitrage-dsvm-mock-py35/post.yaml
+    run: playbooks/legacy/vitrage-dsvm-mock-py3/run.yaml
+    post-run: playbooks/legacy/vitrage-dsvm-mock-py3/post.yaml
     timeout: 7800
     required-projects:
       - openstack-infra/devstack-gate

playbooks/legacy/vitrage-dsvm-api-py3/run.yaml

@@ -1,5 +1,5 @@
 - hosts: all
-  name: Autoconverted job legacy-vitrage-dsvm-api-py35 from old job gate-vitrage-dsvm-api-py35-ubuntu-xenial-nv
+  name: Autoconverted job legacy-vitrage-dsvm-api-py3 from old job gate-vitrage-dsvm-api-py35-ubuntu-xenial-nv
   tasks:
 
     - name: Ensure legacy workspace directory

playbooks/legacy/vitrage-dsvm-datasources-py3/run.yaml

@@ -1,5 +1,5 @@
 - hosts: all
-  name: Autoconverted job legacy-vitrage-dsvm-datasources-py35 from old job gate-vitrage-dsvm-datasources-py35-ubuntu-xenial-nv
+  name: Autoconverted job legacy-vitrage-dsvm-datasources-py3 from old job gate-vitrage-dsvm-datasources-py35-ubuntu-xenial-nv
   tasks:
 
     - name: Ensure legacy workspace directory

playbooks/legacy/vitrage-dsvm-mock-py3/run.yaml

@@ -1,5 +1,5 @@
 - hosts: all
-  name: Autoconverted job legacy-vitrage-dsvm-mock-py35 from old job gate-vitrage-dsvm-mock-py35-ubuntu-xenial-nv
+  name: Autoconverted job legacy-vitrage-dsvm-mock-py3 from old job gate-vitrage-dsvm-mock-py35-ubuntu-xenial-nv
   tasks:
 
     - name: Ensure legacy workspace directory

setup.cfg

@@ -16,7 +16,7 @@ classifier =
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.5
+    Programming Language :: Python :: 3.6
     Topic :: System :: Monitoring
 
 [global]

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.3.1
-envlist = py36,py35,py27,pep8
+envlist = py36,py27,pep8
 skipsdist = True
 
 [testenv]