remove python 3.9

Author: irmen

.github/workflows/main-ci.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     steps:
       - name: Checkout source

Makefile

@@ -2,21 +2,18 @@
 PYTHON=python3
 
 all:
-	@echo "targets: dist, docs, upload, install, clean, test"
+	@echo "targets: dist, docs, upload, clean, test"
 
 docs:
 	sphinx-build docs/source build/docs
 
 dist:
-	$(PYTHON) setup.py sdist bdist_wheel
+	$(PYTHON) -m build --sdist --wheel
 
 upload: dist
 	@echo "Uploading to Pypi using twine...."
 	twine upload dist/*
 
-install:
-	$(PYTHON) setup.py install
-
 test:
 	PYTHONPATH=. python3 -m pytest tests
 

setup.cfg

@@ -13,7 +13,7 @@ license_file = LICENSE
 classifiers =
     Development Status :: 5 - Production/Stable
     Intended Audience :: Developers
-    License :: OSI Approved :: MIT License
+    License-Expression :: MIT
     Natural Language :: English
     Natural Language :: Dutch
     Operating System :: OS Independent

test-requirements.txt

@@ -1,3 +1,4 @@
+build
 serpent>=1.41
 msgpack>=0.5.2
 pytest

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist=py39,py310,py311,py312,py313,py314,pypy3
+envlist=py310,py311,py312,py313,py314,pypy3
 
 [testenv]
 deps=