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Drop Python 3.9 support #338

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Merged
bgilbert merged 1 commit into from
Nov 23, 2025
Merged

Drop Python 3.9 support #338

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4 changes: 2 additions & 2 deletions .github/workflows/python.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,7 @@ jobs:
strategy:
matrix:
os: [ubuntu-latest, ubuntu-24.04-arm, macos-latest]
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"]
openslide: [system, wheel]
include:
- os: ubuntu-latest
Expand Down Expand Up @@ -165,7 +165,7 @@ jobs:
shell: bash
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"]
openslide: [zip, wheel]
steps:
- name: Check out repo
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2 changes: 1 addition & 1 deletion .pre-commit-config.yaml
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Expand Up @@ -20,7 +20,7 @@ repos:
hooks:
- id: pyupgrade
name: Modernize python code
args: ["--py39-plus"]
args: ["--py310-plus"]

- repo: https://github.com/PyCQA/isort
rev: 7.0.0
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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -41,7 +41,7 @@ OpenSlide can read virtual slides in several formats:

## Requirements

* Python ≥ 3.9
* Python ≥ 3.10
* OpenSlide ≥ 3.4.0
* Pillow

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3 changes: 2 additions & 1 deletion openslide/lowlevel.py
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Expand Up @@ -31,6 +31,7 @@

from __future__ import annotations

from collections.abc import Callable
from ctypes import (
CDLL,
POINTER,
Expand All @@ -49,7 +50,7 @@
from itertools import count
import os
import platform
from typing import TYPE_CHECKING, Any, Callable, Protocol, TypeVar, cast
from typing import TYPE_CHECKING, Any, Protocol, TypeVar, cast

from PIL import Image

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5 changes: 2 additions & 3 deletions pyproject.toml
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Expand Up @@ -18,7 +18,6 @@ classifiers = [
"Operating System :: POSIX :: Linux",
"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",
Expand All @@ -27,7 +26,7 @@ classifiers = [
"Topic :: Scientific/Engineering :: Bio-Informatics",
"Typing :: Typed",
]
requires-python = ">= 3.9"
requires-python = ">= 3.10"
dependencies = ["Pillow"]
dynamic = ["version"]

Expand All @@ -52,7 +51,7 @@ openslide = ["py.typed", "*.pyi"]

[tool.black]
skip-string-normalization = true
target-version = ["py39", "py310", "py311", "py312", "py313", "py314"]
target-version = ["py310", "py311", "py312", "py313", "py314"]

# Ref: https://github.com/codespell-project/codespell#using-a-config-file
[tool.codespell]
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