refactor: update pre-commit configuration and dependencies for improved Python 3.9 support

.pre-commit-config.yaml

@@ -3,38 +3,31 @@
 # Setup: pre-commit install
 # Run manually: pre-commit run --all-files
 
+default_language_version:
+  python: python3
+
 repos:
-  # Generic file hygiene checks
+  # Python-focused safety checks
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.4.0
+    rev: v5.0.0
     hooks:
-      - id: trailing-whitespace
-      - id: end-of-file-fixer
       - id: check-yaml
-      - id: check-added-large-files
+      - id: check-ast
+        files: ^.*\.py$
+      - id: debug-statements
+        files: ^.*\.py$
+      - id: check-docstring-first
+        files: ^.*\.py$
+      - id: check-builtin-literals
+        files: ^.*\.py$
 
-  # Python formatting (Black) - apply to all Python files
-  - repo: https://github.com/psf/black
-    rev: 24.4.2
+  # Modern Python linting + import sorting + formatting
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.11.13
     hooks:
-      - id: black
-        language_version: python3
-        args: ["--line-length=100"]
-
-  # Python import sorting (isort) - apply to all Python files
-  - repo: https://github.com/pycqa/isort
-    rev: 5.13.2
-    hooks:
-      - id: isort
-        args: ["--profile", "black", "--line-length=100"]
-
-  # Python linting (flake8) - strict settings for code quality
-  - repo: https://github.com/pycqa/flake8
-    rev: 6.0.0
-    hooks:
-      - id: flake8
-        # Strict but reasonable settings
-        args: [
-          "--max-line-length=100",
-          "--extend-ignore=E203,W503"
-        ]
+      - id: ruff-check
+        args: ["--fix"]
+        files: ^.*\.py$
+      - id: ruff-format
+        args: ["--check"]
+        files: ^.*\.py$

README.md

@@ -399,7 +399,7 @@ I welcome contributions! To contribute to pyMC_repeater:
 ### Development Setup
 
 ```bash
-# Install in development mode with dev tools (black, pytest, isort, mypy, etc)
+# Install in development mode with dev tools (ruff, pytest, mypy, etc)
 pip install -e ".[dev]"
 
 # Setup pre-commit hooks for code quality
@@ -413,9 +413,8 @@ pre-commit run --all-files
 **Note:** Hardware support (LoRa radio drivers) is included in the base installation automatically via `pymc_core[hardware]`.
 
 Pre-commit hooks will automatically:
-- Format code with Black
-- Sort imports with isort
-- Lint with flake8
+- Lint and auto-fix Python issues with Ruff
+- Validate formatting with Ruff formatter
 - Fix trailing whitespace and other file issues
 
 ## Support

debian/control

@@ -16,7 +16,7 @@ Build-Depends: debhelper-compat (= 13),
                git
 Standards-Version: 4.6.2
 Homepage: https://github.com/rightup/pyMC_Repeater
-X-Python3-Version: >= 3.8
+X-Python3-Version: >= 3.9
 
 Package: pymc-repeater
 Architecture: all

pyproject.toml

@@ -11,14 +11,13 @@ authors = [
 description = "PyMC Repeater Daemon"
 readme = "README.md"
 license = {text = "MIT"}
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
     "License :: OSI Approved :: MIT License",
     "Operating System :: POSIX :: Linux",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -55,8 +54,7 @@ rrd = [
 dev = [
     "pytest>=7.4.0",
     "pytest-asyncio>=0.21.0",
-    "black>=23.0.0",
-    "isort>=5.12.0",
+    "ruff>=0.11.13",
     "mypy>=1.7.0",
 ]
 
@@ -78,13 +76,12 @@ repeater = [
     "presets/*.yaml",
 ]
 
-[tool.black]
+[tool.ruff]
 line-length = 100
-target-version = ['py38', 'py39', 'py310', 'py311', 'py312']
+target-version = "py39"
 
-[tool.isort]
-profile = "black"
-line_length = 100
+[tool.ruff.lint]
+extend-ignore = ["E701"]
 
 [tool.setuptools_scm]
 version_scheme = "guess-next-dev"