fix: drop Python 3.9 support (#508)

Author: BoboTiG

.github/workflows/tests.yml

@@ -63,8 +63,6 @@ jobs:
           - emoji: 🪟
             runs-on: [windows-latest]
         python:
-          - name: CPython 3.9
-            runs-on: "3.9"
           - name: CPython 3.10
             runs-on: "3.10"
           - name: CPython 3.11

README.md

@@ -20,7 +20,7 @@ with MSS() as sct:
 
 An ultra-fast cross-platform multiple screenshots module in pure python using ctypes.
 
-- **Python 3.9+**, PEP8 compliant, no dependency, thread-safe;
+- **Python 3.10+**, PEP8 compliant, no dependency, thread-safe;
 - very basic, it will grab one screenshot by monitor or a screenshot of all monitors and save it to a PNG file;
 - but you can use PIL and benefit from all its formats (or add yours directly);
 - integrate well with Numpy and OpenCV;

docs/source/examples/pil_pixels.py

@@ -16,7 +16,7 @@
     img = Image.new("RGB", sct_img.size)
 
     # Best solution: create a list(tuple(R, G, B), ...) for putdata()
-    pixels = zip(sct_img.raw[2::4], sct_img.raw[1::4], sct_img.raw[::4])
+    pixels = zip(sct_img.raw[2::4], sct_img.raw[1::4], sct_img.raw[::4], strict=False)
     img.putdata(list(pixels))
 
     # But you can set individual pixels too (slower)

docs/source/index.rst

@@ -20,7 +20,7 @@ Welcome to Python MSS's documentation!
 
 An ultra fast cross-platform multiple screenshots module in pure python using ctypes.
 
-    - **Python 3.9+**, :pep:`8` compliant, no dependency, thread-safe;
+    - **Python 3.10+**, :pep:`8` compliant, no dependency, thread-safe;
     - very basic, it will grab one screenshot by monitor or a screenshot of all monitors and save it to a PNG file;
     - but you can use PIL and benefit from all its formats (or add yours directly);
     - integrate well with Numpy and OpenCV;

docs/source/release-history/unreleased.md

@@ -4,3 +4,12 @@ This is **version 11.0.0 of Python-MSS**, the ultra-fast cross-platform multiple
 
 Release date: 2026-xx-x
 
+---
+
+## Highlights
+
+### Python 3.9 EOL
+
+Python 3.9 reached [end-of-life](https://devguide.python.org/developer-workflow/development-cycle/index.html#end-of-life-branches) on [October 31, 2025](https://devguide.python.org/versions/).  It is no longer receiving any updates, even security updates.
+
+The MSS project has chosen to end support for Python 3.9, in order to focus our resources on current versions of Python.

docs/source/support.rst

@@ -5,7 +5,7 @@ Support
 Feel free to try MSS on a system we had not tested, and let us know by creating an `issue <https://github.com/BoboTiG/python-mss/issues>`_.
 
     - OS: GNU/Linux, macOS, and Windows
-    - Python: 3.9 and newer
+    - Python: 3.10 and newer
 
 
 Future
@@ -35,3 +35,4 @@ Abandoned
 - Python 3.6 (2022-10-27)
 - Python 3.7 (2023-04-09)
 - Python 3.8 (2024-11-14)
+- Python 3.9 (2026-xx-xx)

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "hatchling.build"
 name = "mss"
 description = "An ultra fast cross-platform multiple screenshots module in pure python using ctypes."
 readme = "README.md"
-requires-python = ">= 3.9"
+requires-python = ">= 3.10"
 authors = [
   { name = "Mickaël Schoentgen", email="contact@tiger-222.fr" },
 ]
@@ -31,7 +31,6 @@ classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
   "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",
@@ -87,11 +86,9 @@ docs = [
 tests = [
   "numpy==2.4.3 ; sys_platform == 'linux' and python_version == '3.13'",
   "pillow==12.1.1 ; sys_platform == 'linux' and python_version == '3.13'",
-  "pytest==9.0.2 ; python_version > '3.9'",
-  "pytest==8.4.2 ; python_version == '3.9'",
+  "pytest==9.0.2",
   "pytest-cov==7.1.0",
-  "pytest-rerunfailures==16.1 ; python_version > '3.9'",
-  "pytest-rerunfailures==16.0.1 ; python_version == '3.9'",
+  "pytest-rerunfailures==16.1",
   "pyvirtualdisplay==3.0 ; sys_platform == 'linux'",
 ]
 
@@ -163,7 +160,7 @@ exclude = [
 ]
 line-length = 120
 indent-width = 4
-target-version = "py39"
+target-version = "py310"
 
 [tool.ruff.format]
 quote-style = "double"

src/mss/models.py

@@ -13,7 +13,7 @@
 Pixels = list[tuple[Pixel, ...]]
 
 if TYPE_CHECKING:
-    from typing import Callable
+    from collections.abc import Callable
 
     CFunctions = dict[str, tuple[str, list[Any], Any]]
     CFunctionsErrChecked = dict[str, tuple[str, list[Any], Any, Callable | None]]

src/mss/screenshot.py

@@ -94,8 +94,8 @@ def pixels(self) -> Pixels:
         Each pixel is a tuple of (R, G, B).
         """
         if not self.__pixels:
-            rgb_tuples: Iterator[Pixel] = zip(self.raw[2::4], self.raw[1::4], self.raw[::4])
-            self.__pixels = list(zip(*[iter(rgb_tuples)] * self.width))
+            rgb_tuples: Iterator[Pixel] = zip(self.raw[2::4], self.raw[1::4], self.raw[::4], strict=False)
+            self.__pixels = list(zip(*[iter(rgb_tuples)] * self.width, strict=False))
 
         return self.__pixels
 

src/mss/windows/gdi.py

@@ -34,7 +34,8 @@
 from mss.exception import ScreenShotError
 
 if TYPE_CHECKING:
-    from typing import Any, Callable
+    from collections.abc import Callable
+    from typing import Any
 
     from mss.models import CFunctionsErrChecked, Monitor, Monitors