Merge "Drop Python 3.9 support"

.zuul.yaml

@@ -1,6 +1,6 @@
 - job:
-    name: oslodb-tox-py39-tips
-    parent: openstack-tox-py39
+    name: oslodb-tox-py310-tips
+    parent: openstack-tox-py310
     description: |
       Run unit tests for oslo.db with main branch of important libs.
       Takes advantage of the base tox job's install-siblings feature.
@@ -42,11 +42,11 @@
     name: oslodb-tox-unit-tips
     check:
       jobs:
-        - oslodb-tox-py39-tips
+        - oslodb-tox-py310-tips
         - oslodb-tox-py312-tips
     gate:
       jobs:
-        - oslodb-tox-py39-tips
+        - oslodb-tox-py310-tips
         - oslodb-tox-py312-tips
 
 - project:

releasenotes/notes/remove-py39-2220ff39406be378.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 @@ description_file =
 author = OpenStack
 author_email = openstack-discuss@lists.openstack.org
 home_page = https://docs.openstack.org/oslo.db/latest
-python_requires = >=3.9
+python_requires = >=3.10
 classifier =
     Environment :: OpenStack
     Intended Audience :: Information Technology
@@ -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