Drop support python 3.9 (#2626)

The PR drop support of python 3.10 and sets python 3.10 as a minimum
required.

Author: antonwolfy

.github/workflows/conda-package.yml

@@ -29,7 +29,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.10', '3.11', '3.12', '3.13']
         os: [ubuntu-22.04, windows-2022]
 
     permissions:
@@ -128,7 +128,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.10', '3.11', '3.12', '3.13']
         os: [ubuntu-latest]
 
     env:
@@ -256,7 +256,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.10', '3.11', '3.12', '3.13']
         os: [windows-2022]
 
     env:
@@ -405,7 +405,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.10', '3.11', '3.12', '3.13']
         os: [ubuntu-22.04, windows-2022]
 
     runs-on: ${{ matrix.os }}

.github/workflows/cron-run-tests.yaml

@@ -13,6 +13,7 @@ env:
   package-name: dpnp
   channels-list: '-c dppy/label/dev -c https://software.repos.intel.com/python/conda/ -c conda-forge --override-channels'
   test-env-name: test
+  test-packages: 'pytest scipy'
   rerun-tests-max-attempts: 2
   rerun-tests-timeout: 20
 
@@ -37,20 +38,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python: ['3.10', '3.11', '3.12', '3.13']
         runner: [ubuntu-22.04, ubuntu-24.04, windows-2022]
-        include:
-          - python: 3.9
-            # do not install scipy due to import issue
-            test-packages: "pytest"
-          - python: 3.10
-            test-packages: "pytest scipy"
-          - python: 3.11
-            test-packages: "pytest scipy"
-          - python: 3.12
-            test-packages: "pytest scipy"
-          - python: 3.13
-            test-packages: "pytest scipy"
 
     steps:
       - name: Cancel Previous Runs
@@ -96,12 +85,12 @@ jobs:
         id: install_dpnp
         continue-on-error: true
         run: |
-          mamba install ${{ env.package-name }}=${{ steps.find_latest_tag.outputs.tag }} ${{ matrix.test-packages }} ${{ env.channels-list }}
+          mamba install ${{ env.package-name }}=${{ steps.find_latest_tag.outputs.tag }} ${{ env.test-packages }} ${{ env.channels-list }}
 
       - name: ReInstall dpnp
         if: steps.install_dpnp.outcome == 'failure'
         run: |
-          mamba install ${{ env.package-name }}=${{ steps.find_latest_tag.outputs.tag }} ${{ matrix.test-packages }} ${{ env.channels-list }}
+          mamba install ${{ env.package-name }}=${{ steps.find_latest_tag.outputs.tag }} ${{ env.test-packages }} ${{ env.channels-list }}
 
       - name: List installed packages
         run: mamba list

CHANGELOG.md

@@ -7,6 +7,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [0.20.0] - MM/DD/2026
 
 This release changes the license from `BSD-2-Clause` to `BSD-3-Clause`.
+The release drops support for Python 3.9, making Python 3.10 the minimum required version.
 
 ### Added
 
@@ -24,6 +25,8 @@ This release changes the license from `BSD-2-Clause` to `BSD-3-Clause`.
 
 ### Removed
 
+* Dropped support for Python 3.9 [#2626](https://github.com/IntelPython/dpnp/pull/2626)
+
 ### Fixed
 
 ### Security

conda-recipe/meta.yaml

@@ -63,7 +63,7 @@ test:
     requires:
       - pytest
       - setuptools
-      - scipy # [py>39]
+      - scipy
 
 about:
     home: https://github.com/IntelPython/dpnp

doc/quick_start_guide.rst

@@ -24,7 +24,7 @@ Follow device driver installation instructions to complete the step.
 Python Interpreter
 ==================
 
-You will need Python 3.9, 3.10, 3.11, 3.12 or 3.13 installed on your system. If you
+You will need Python 3.10, 3.11, 3.12 or 3.13 installed on your system. If you
 do not have one yet the easiest way to do that is to install
 `Intel Distribution for Python*`_. It installs all essential Python numerical
 and machine learning packages optimized for the Intel hardware, including

dpnp/tests/test_fft.py

@@ -261,7 +261,6 @@ def test_error(self, xp):
         if xp == dpnp:
             # dpnp and stock NumPy raise TypeError
             # Intel NumPy raises SystemError for Python 3.10 and 3.11
-            # and no error for Python 3.9
             assert_raises(TypeError, xp.fft.fft, a, n=5.0)
 
         # Invalid number of FFT point for incorrect n value

pyproject.toml

@@ -27,7 +27,6 @@ classifiers = [
   "Programming Language :: Cython",
   "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",
@@ -71,7 +70,7 @@ license-files = ["LICENSE.txt"]
 maintainers = [{name = "Intel Corporation"}]
 name = "dpnp"
 readme = {file = "README.md", content-type = "text/markdown"}
-requires-python = ">=3.9,<3.14"
+requires-python = ">=3.10,<3.14"
 
 [project.optional-dependencies]
 coverage = [
@@ -103,7 +102,7 @@ Repository = "https://github.com/IntelPython/dpnp.git"
 
 [tool.black]
 line-length = 80
-target-version = ['py39', 'py310', 'py311', 'py312', 'py313']
+target-version = ['py310', 'py311', 'py312', 'py313']
 
 [tool.codespell]
 builtin = "clear,rare,informal,names"