Drop Python 3.9 support

It was removed from tested runtimes in 2025.2 . It has been kept for
one cycle for smooth transition of the other projects, but it's time
to bump the enforced minimum requirement.

Also add Python 3.13 which has been tested for some time.

Change-Id: I4cb57de3677c90c2c901f5825dc162d9069795ec
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>

.zuul.yaml

@@ -9,108 +9,108 @@
       - release-notes-jobs-python3
     check:
       jobs:
-        - tooz-tox-py39-etcd3gw
+        - tooz-tox-py310-etcd3gw
         - tooz-tox-py312-etcd3gw
-        - tooz-tox-py39-zookeeper
+        - tooz-tox-py310-zookeeper
         - tooz-tox-py312-zookeeper
-        - tooz-tox-py39-redis
+        - tooz-tox-py310-redis
         - tooz-tox-py312-redis
-        - tooz-tox-py39-sentinel
+        - tooz-tox-py310-sentinel
         - tooz-tox-py312-sentinel
-        - tooz-tox-py39-memcached
+        - tooz-tox-py310-memcached
         - tooz-tox-py312-memcached
-        - tooz-tox-py39-postgresql
+        - tooz-tox-py310-postgresql
         - tooz-tox-py312-postgresql
-        - tooz-tox-py39-mysql
+        - tooz-tox-py310-mysql
         - tooz-tox-py312-mysql
-        - tooz-tox-py39-consul
+        - tooz-tox-py310-consul
         - tooz-tox-py312-consul
     gate:
       jobs:
-        - tooz-tox-py39-etcd3gw
+        - tooz-tox-py310-etcd3gw
         - tooz-tox-py312-etcd3gw
-        - tooz-tox-py39-zookeeper
+        - tooz-tox-py310-zookeeper
         - tooz-tox-py312-zookeeper
-        - tooz-tox-py39-redis
+        - tooz-tox-py310-redis
         - tooz-tox-py312-redis
-        - tooz-tox-py39-sentinel
+        - tooz-tox-py310-sentinel
         - tooz-tox-py312-sentinel
-        - tooz-tox-py39-memcached
+        - tooz-tox-py310-memcached
         - tooz-tox-py312-memcached
-        - tooz-tox-py39-postgresql
+        - tooz-tox-py310-postgresql
         - tooz-tox-py312-postgresql
-        - tooz-tox-py39-mysql
+        - tooz-tox-py310-mysql
         - tooz-tox-py312-mysql
-        - tooz-tox-py39-consul
+        - tooz-tox-py310-consul
         - tooz-tox-py312-consul
 
 - job:
-    name: tooz-tox-py39-consul
+    name: tooz-tox-py310-consul
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-consul`` environment.
+      Run tests using ``py310-consul`` environment.
     vars:
-      tox_envlist: py39-consul
+      tox_envlist: py310-consul
 
 - job:
-    name: tooz-tox-py39-etcd3gw
+    name: tooz-tox-py310-etcd3gw
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-etcd3gw`` environment.
+      Run tests using ``py310-etcd3gw`` environment.
     vars:
-      tox_envlist: py39-etcd3gw
+      tox_envlist: py310-etcd3gw
 
 - job:
-    name: tooz-tox-py39-memcached
+    name: tooz-tox-py310-memcached
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-memcached`` environment.
+      Run tests using ``py310-memcached`` environment.
     vars:
-      tox_envlist: py39-memcached
+      tox_envlist: py310-memcached
 
 - job:
-    name: tooz-tox-py39-mysql
+    name: tooz-tox-py310-mysql
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-mysql`` environment.
+      Run tests using ``py310-mysql`` environment.
     vars:
-      tox_envlist: py39-mysql
+      tox_envlist: py310-mysql
 
 - job:
-    name: tooz-tox-py39-postgresql
+    name: tooz-tox-py310-postgresql
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-postgresql`` environment.
+      Run tests using ``py310-postgresql`` environment.
     vars:
-      tox_envlist: py39-postgresql
+      tox_envlist: py310-postgresql
 
 - job:
-    name: tooz-tox-py39-redis
+    name: tooz-tox-py310-redis
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-redis`` environment.
+      Run tests using ``py310-redis`` environment.
     vars:
-      tox_envlist: py39-redis
+      tox_envlist: py310-redis
     pre-run:
       - playbooks/stop-redis.yaml
 
 - job:
-    name: tooz-tox-py39-sentinel
+    name: tooz-tox-py310-sentinel
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-sentinel`` environment.
+      Run tests using ``py310-sentinel`` environment.
     vars:
-      tox_envlist: py39-sentinel
+      tox_envlist: py310-sentinel
     pre-run:
       - playbooks/stop-redis.yaml
 
 - job:
-    name: tooz-tox-py39-zookeeper
+    name: tooz-tox-py310-zookeeper
-    parent: openstack-tox-py39
+    parent: openstack-tox-py310
     description: |
-      Run tests using ``py39-zookeeper`` environment.
+      Run tests using ``py310-zookeeper`` environment.
     vars:
-      tox_envlist: py39-zookeeper
+      tox_envlist: py310-zookeeper
 
 - job:
     name: tooz-tox-py312-consul

releasenotes/notes/remove-py39-65e562686f829059.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    Support for Python 3.9 has been removed. Now the minimum python version
+    supported is 3.10.

setup.cfg

@@ -6,7 +6,7 @@ summary = Coordination library for distributed systems.
 description_file = README.rst
 license = Apache-2
 home_page = https://docs.openstack.org/tooz/latest/
-python_requires = >=3.9
+python_requires = >=3.10
 classifier =
     Environment :: OpenStack
     Intended Audience :: Developers
@@ -15,10 +15,10 @@ classifier =
     Operating System :: POSIX :: Linux
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
     Programming Language :: Python :: 3 :: Only
     Programming Language :: Python :: Implementation :: CPython
     Topic :: System :: Distributed Computing

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.18.0
-envlist = py3,py{39,312}-{zookeeper,redis,sentinel,memcached,postgresql,mysql,consul,etcd,etcd3gw,kubernetes},pep8
+envlist = py3,py{310,312}-{zookeeper,redis,sentinel,memcached,postgresql,mysql,consul,etcd,etcd3gw,kubernetes},pep8
 
 [testenv]
 deps =