Deprecate python3.9 support

Signed-off-by: Ayan Sinha Mahapatra <asmahapatra@aboutcode.org>

Author: AyanSinhaMahapatra

azure-pipelines.yml

@@ -10,54 +10,54 @@ jobs:
       parameters:
           job_name: ubuntu22_cpython
           image_name: ubuntu-22.04
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
     - template: etc/ci/azure-posix.yml
       parameters:
           job_name: ubuntu24_cpython
           image_name: ubuntu-24.04
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
     - template: etc/ci/azure-posix.yml
       parameters:
           job_name: macos13_cpython
           image_name: macOS-13
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
     - template: etc/ci/azure-posix.yml
       parameters:
           job_name: macos14_cpython
           image_name: macOS-14
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
     - template: etc/ci/azure-posix.yml
       parameters:
           job_name: macos15_cpython
           image_name: macOS-15
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv/bin/pytest -n 2 -vvs
 
     - template: etc/ci/azure-win.yml
       parameters:
           job_name: win2022_cpython
           image_name: windows-2022
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv\Scripts\pytest -n 2 -vvs
 
     - template: etc/ci/azure-win.yml
       parameters:
           job_name: win2025_cpython
           image_name: windows-2025
-          python_versions: ['3.9', '3.10', '3.11', '3.12', '3.13']
+          python_versions: ['3.10', '3.11', '3.12', '3.13', '3.14']
           test_suites:
               all: venv\Scripts\pytest -n 2 -vvs

setup.cfg

@@ -50,7 +50,7 @@ packages = find:
 include_package_data = true
 zip_safe = false
 setup_requires = setuptools_scm[toml] >= 4
-python_requires = >=3.9
+python_requires = >=3.10
 install_requires =
 	pytest >= 6, != 7.0.0
 	pytest-xdist >= 2