Drop support for python 3.9

.github/workflows/python.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v4

.sonarcloud.properties

@@ -10,7 +10,7 @@ sonar.sources=src
 # Encoding of the source code. Default is default system encoding
 #sonar.sourceEncoding=UTF-8
 
-sonar.python.version=3.9, 3.10, 3.11, 3.12, 3.13
+sonar.python.version=3.10, 3.11, 3.12, 3.13
 sonar.tests=tests
 
 #sonar.exclusions=path/to/generated/file.py, other-generated-file.dat

changelog.d/+drop-py39.removed.md

@@ -0,0 +1 @@
+Dropped support for testing and running on Python 3.9

pyproject.toml

@@ -7,7 +7,7 @@ name = "argus-server"
 description = "Argus is an alert aggregator for monitoring systems"
 authors = [{name="Uninett Opensource", email="[email protected]"}]
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = {text = "GPL-3.0-or-later"}
 classifiers = [
     "Framework :: Django",
@@ -16,7 +16,6 @@ classifiers = [
     "Intended Audience :: System Administrators",
     "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",

tox.ini

@@ -1,7 +1,6 @@
 [tox]
 envlist =
     clean
-    py39-django{42}
     py{310,311,312}-django{42,50,51}
     py313-django51
     coverage-html
@@ -11,7 +10,6 @@ basepython = python3.12
 
 [gh-actions]
 python =
-    3.9: py39
     3.10: py310
     3.11: py311
     3.12: py312